ML17275B192

Table 2.5-5:Historical Earthquake Catalog for Pacific Northwest Region.

ML17275B192
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Issue date:	08/31/1981
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WNP -2 AMENDMENT NO. 18 August 1981 TABLE 2. 5-5 HISTORICAL EARTHQUAKE CATALOG FOR THE PACIFIC NORTHWEST REGION Augus t 19 81 I'108200389 810807~

PDR ADOCK 05000397 'h PD~R

AMENDMENT NO. 18 August 1981 TABLE 2. 5-5 TABLE OF CONTENTS Pa<ac

1.1 DESCRIPTION

OF THE EARTHQUAKE CATALOG'.1 2.5-5-1 EXPLANATION OF EARTHQUAKE CATALOG COLUMN HEADINGS 2.5-5-2 3.1 SOURCE CODE REFERENCES USED IN "S" COLUMN 2.5-5-4 4.1 MAGNITUDE CODES USED IN "SM" COLUMN 2.5-5-6 5.1 NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA) HYPOCENTER DATA FILE FORMAT EXPLANATION 2.5-5-6

5. 1.1 REPORTING OF FRACTIONAL EARTHQUAKE MAGNITUDES 2.5-5-6 5.1.2 EXPLANATION OF NOAA CODES USED IN "Q" COLUMN 2.5-5-7 5.1.3 EXPLANATION OF NOAA CODES USED IN "LOCATION AND COMMENTS" COLUMN 2.5-5-7

5. 1.4 ISOSEISMAL MAP PUBLISHERS CODES 2.5-5-9 6.1 UNITED STATES GEOLOGICAL SURVEY CENTRAL WASHINGTON DATA FILE CODES EXPLANATION 2.5-5-9 6.1.1 HYPOCENTER SOLUTION QUALITY USED IN "Q" COLUMN 2.5-5-9 6.1.2 EXPLANATION OF ABBREVIATIONS USED IN "LOCATION AND COMMENTS" COLUMN 2.5-5-9 7.1 CANADIAN (EARTH PHYSICS BRANCH) EPICENTER DATA EXPLANATION 2.5-5-10 7.1.1 ORIGINAL DATA SOURCES AND CODES 2.5-5-10 7.1.2 INTENSITY MAGNITUDE CONVERSION 2.5-5-11 8.1 HISTORICAL EARTHQUAKE CATALOG FOR THE PACIFIC NORTHWEST REGION 2.5-5-i

AMENDMENT NO. 18 August 1981

1.1 DESCRIPTION

OF THE EARTHQUAKE CATALOG The earthquake catalog contained in this table has been produced using Woodward-Clyde Consultants'arthquake Data Bank. The catalog covers the following region:

Latitudes 42oN to 54oN Longitudes 114o to 128oW The catalog includes located earthquakes of all intensities greater than or equal to intensity III and all magnitudes greater than or equal to magnitude 3.0 that have been reported from the region through December 31, 1980 by the sources cited in the Source Code Reference List on page 2.5-5-4. The earliest earthquake reported by the sources for the region occurred on December 3, 1841. The sources selected are those that provide the most complete data listings for the region, including more obscure sources that provide relatively short lists of small microearthquakes in limited areas. All the data available from the selected sources before March 1, 1981, are, included. The main sources used are the National Oceanic and Atmospheric Administration (NOAA); the University of Washington (Western and Eastern Washington Networks); and the Earth Physics Branch of the Canadian Department of Energy, Mines and Resources.

Data from the University of Washington Eastern Washington network fo'r the first half of 1980 are not yet available.

Western Washington data for 1978 and 1979 were received after the catalog had been completed.

Many earthquakes appear in two or more of the source listings. Therefore, the catalog was edited by seis-mologists and duplicate entries were deleted. Although the majority of duplicate entries are almost identical, in cases where the hypocentral solutions differ appreciably, a selection was made based on the amount of data available to each source agency and on geographical considerations. For example, a University of Washington entry for an earthquake that occurred within the coverage of one of their regional networks would be selected rather than Canadian or NOAA entries.

For certain early earthquakes, especially several pre-instrumental events, it is difficult to choose between alternative sources. In these cases a preferred solution 2.5-5-1

WNP -2 AMENDMENT NO. 18 August 1981 was chosen based on the available data, and only the preferred solution is listed. All the alternative solutions are listed in the previous catalog.*

Every attempt has been made to accurately reproduce the source material and obvious errors or questionable entries in the source listings have been investigated and, when necessary, corrected. However, the large volume of data obviously precludes exhaustive checking of every source listing, and the possibility of errors in the catalog cannot be completely eliminated. Particular attention was paid to verifying the magnitudes of eastern Washington earthquakes greater than magnitude 3 reported by the University of Washington. The magnitudes o f these earthquakes appearing in the catalog were checked against the source listings; in several cases,, the University of Washington Geophysics Program staff checked the source listings against original hypocenter solution computer runs. It is important to note that the quality of earthquake locations is not temporarily or spatially consistent from source to source, or even within each source.

2.1 EXPLANATION OF EARTHQUAKE CATALOG COLUMN HEADINGS CAT. NO. Sequential catalog number assigned to each earthquake.

DATE Date in Greenwich mean time unless noted DAY-MO-YR otherwise in time column (usually as 'LT'or local time).

TIME (GMT ) Time in Greenwich mean time unless noted HR-MIN-SEC otherwise in time column (usually as 'LT'or local time) .

LAT Latitude, north or south as noted. When original sources have given the latitude or longitude in degrees, minutes, and seconds, or as fractions of a degree, these have been converted to decimal degrees. Although the catalog presents the coordinates in thousandths of a degree, it is important to bear in mind that this does not imply location accuracy to "Woodward-Clyde Consultants, 1978, Earthquake catalog of the Northwestern United States and Canada 1841-1977: Report prepared for the Washington Public Power Supply System, Richland, Washington, 427 p.

2.5-5-2

AMENDMENT NO. 18 August 1981 that precision. In many cases the implicit accuracy is discernible from the coordinate.

For example, reported as if1/4a latitude 23 were originally N, the catalog would list it as 23.250N.

LONG Longitude, east or west as noted (see note above) .

SL Source different of the latitude and from the main source longitude if (column "S") .

Frequently, only a place name is given for an earthquake location in the original data. In many such cases, the coordinates of the place have been assigned to the earthquake by Woodward-Clyde Consultants. The characters 'W',

'Wl', or 'W2're placed in this column to indicate the degree of precision of the place, name, location, as follows:

W nearest hundredth or thousandth degree; Wl nearest tenth degree;

.W2 nearest half degree.

INTEN (MM) Maximum intensity, reported on the modif ied Mercalli scale of 1931, unless noted otherwise; for example, 'RF'ndicates Rossi-Forel intensity scale.

Earthquake magnitude, usually reported as local Richter, body wave, or surface wave (see "SM" column) .

SM Source of magnitude, if different from the main source (column "S"), or magnitude scale, if known. See Section 4.1 for explanation of magnitude codes.

H Hypocenter depth, in kilometers.

(KM)

DIS Epicentral distance from the site in miles or (MI ) (KM) kilometers, as noted.

Epicenter quality indication as reported in main source. These are not quality judgments assigned by Woodward-Clyde Consultants unless the main source for the event is Woodward-Clyde Consultants. (See also Sections 5.1 and 6.1).

2.5-5-3

WNP -2 AMENDMENT NO. 18 August 1981 approximately 13,000 y.b.p. (Mullineaux and others, 1975) .

Glacier Peak ash has not been positively identified in the vicinity of the site, but it has been reported in other localities in the Columbia Basin north and east of the site (Fryxell, 1965). The second ash identified in the site vicinity occurs locally interbedded and mixed with post-glacial eolian deposits that are stratigraphically above the Touchet beds. These ash deposits have been correlated with an ashfall from the eruption of Mount Mazama in Oregon that occured about 6,600 y.b.p. (Fryxell, 1965).

None of the ash deposits, however, were noted during the geologic examinations of the WNP-2 or the WNP-1 and 4 excavations.

A period of renewed volcanic activity on Mt. St. Helens began in late March 1980, climaxed in a major eruption on May 18, 1980, and resulted in about 1 mm of ash fall at the site over a 9-hour period. - Lesser eruptions of steam and ash followed on May 25 and June 12, but prevailing winds carried the respective plumes northwestward and southwestward from the mountain.

The potential effects of a hypothetical, "worst-case" ash fall at the WNP 1-2-4 site were evaluated, utilizing relevant data from the Mt. St. Helens eruptions and detailed studies made by Shannon & Wilson, (1976) for the Pebble Springs Nuclear Plant Site. The Pebble Springs site is located near Arlington, Oregon, approximately 65 miles southwest of the WNPl-2-4 site.

Potential Source of Volcanic Ash There are ten major volcanic peaks of the Cascade Range (Figure 2.5-22) . Even before the activity displayed by Mt.

St. Helens in 1980, several recent investigations, including those of Coombs (1974), Crandell (1973, 1976), Crandell and others (1975), and Crandell and Mullineaux (1976) concluded that essentially all the major Cascade volcanoes have a potential for future activity.

Despite the fact that all major Cascade volcanoes have been active in the last several thousand years, and hence, all must be considered as having a potential for future activity, all are not equally likely to erupt large amounts of volcanic ash in the foreseeable future. Of the volcanoes in the site region, only Mt. St. Helens and Glacier Peak have produced large volumes of volcanic ash during late Quaternary time. Based on past behavior, therefore, Mt. St.

Helens and Glacier Peak are the most likely sources of large ash eruption in the future. Although Mt. Hood also could 2.5-74

AMENDMENT NO. 18 August 1981 conceivably produce a major tephra eruption, its potential is considered to be much less that the other two. Thus, the nearest source of a major eruption of volcanic ash would be either Mt. St. Helens or Mt. Hood, both about 137 miles from the WNP 1-2-4 site. Although Mt. Rainier and Mt; Adams are closer to the site, neither are considered to be potential sources of large amounts of ash in the near future (Shannon and Wilson, 1976) .

Potential for Ash Reaching Site The principal factor in the dispersal of ash is the direction and velocity of the high altitude winds. If these are constant during an eruption, the ash is deposited as an elliptical pattern downwind of the volcano. Such conditions prevailed during the May 18, 1980 eruption of Mt. St. Helens when ash "began falling at the site between 2 and 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> after the eruption.

Available wind data from Salem, Oregon, and Quillayute, Washington (Crandell and Mullineaux, 1976) indicate that the prevailing high-altitude winds in the site region are from the west. The data from Salem (Figure 2.5-23) indicate that in terms of wind patterns between 10,000 and 80,000 feet, the site is directly downwind from Mt. Hood and Mt. St.

Helens about 6 to 12 percent of the time and would receive ash up to 30% of the time with various wind vector-altitude combinations.

Potential Thickness of Ash Fall Estimating a potential maximum ash fall is difficult given the limited number of reliable historical data on volcanic events. Thickness-distance relationships based on observed and estimated ash fall from a number of eruptions are plotted in Figure 2.5-24. From this plot, five inches is a conservative estimate of a potential ash fall for the WNP 1-2-4 site.

Rate and Duration of Ash Fall Only limited data are available on the rate of volcanic ash fall. Eyewitness accounts suggest a maximum rate of downwind ash fall from the May 18, 1980 eruption of Mt. St.

Helens may be 1 in/hr and the same maximum rate has been estimated for the June 1912 eruption of Mt. Katmai. For purposes of evaluating hazards resulting from a hypothetical ash fall, depositional rates of 1 in/hr maximum and of 0.2 in/hr average are assumed. It also is assumed that deposition would continue for less than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

2. 5-75

WNP -2 AMENDMENT NO. 18 August 1981 Density and Compaction of Ash Fall Data on the recent Mt. St. Helens eruptions suggest that a dry unit weight of 80 p.c.f. and a compacted (wet or dry) unit weight of 100 p.c.f. are conservative, given the distances from the site to potential ash sources (see Figure 2.5-25). The same data show that compaction could be 20-25 percent.

Sorting and Composition of Ash The Mt. St. Helens eruptions of 1980 provide the most reliable characterization of a potential ash fall. Figure 2.5-26 shows the observed grain-size distribution for the Mt. St. Helens ash at a number of sites with the Mt. Mazama (6,600 y.b.p.) grain-size distribution superimposed. From these data the following grain-size distribution at the project site is hypothesized; 84 percent less than 75 microns, 50 percent less than 20 microns, 34 percent less than 10 microns, 28 percent less than 7 microns, 20 percent less than 5 microns. The composition of the tephra at distances of approximately 150 miles from the mountain included 15-20 percent crystals, 50-80 percent glass, and 5-25 percent pumice fragments and dust. Seventy percent of the crystals were feldspars.

2.5.1.2.6.2 Subsidence Karst terrains, cavernous conditions, local tectonic depressions, uplifts, or related features have not been identified in the vicinity of the site.

2.5.1.2.6.3 Landslides The closest landslide occurrence is three miles or more distant in the White Bluffs adjacent to the Columbia River.

Slope stabilities at the site are addressed in 2.5.5.

2.5.1.2.6.4 Regional Warping Studies by R. E. Brown (1969) and Tillson (1970) suggest that the Pasco Basin is continuing to subside. Brown indicates rates of 1 foot in 5,000 years to 1 foot in 1,000 years. Tillson determined an average rate of 1 mm per year from available leveling data. Although these analyses are not positive indicators of continued basining, they do provide data which precludes regional warping as a problem at the proposed site.

2.5-76

AMENDMENT NO. 18 August 1981 2.5.1.2.6. 5 Man ' Activities The extraction and recharge of groundwater in the region and site vicinity is discussed in Sections 2.4.13 and 2.5. 1.2.7.6.

The abandoned Rattlesnake Hills gas field is located on the northeast slope of the Rattlesnake Hills, Benton County, Washington, approximately 12 miles from the site. This small accumulation of low pressure methane gas is located on the Rattlesnake Hills anticline. The two producing reservoirs were in vesicular and scoriaceous basalt flows at depths of 700 to 1,260 feet below the ground surface (Glover, 1935) .

The gas field was discovered in 1913. Commercial production began in 1929 and the field was abandoned in 1941. The total recorded production is 1,321,145 m.c.f. Additional unrecorded amounts of gas were wasted in the preliminary development of the field (Glover, 1953) . The nature of this withdrawal and the distance from the proposed site indicate that it presents no problem to stability of the site.

2.5.1.2.7 Site Geology The WNP 1-2-4 site lies within the Pasco Basin (Figure 2.5-4), one of several physiogrphic basins within the western Columbia Plateau. For details of the Pasco Basin, see the previous dicussion in section 2.5.1.2.4.

2.5.1.2.7.1 Geologic History The Geologic history of the WNP 1-2-4 site has been previously discussed on a regional scale in section 2.5.1.1.1 and again on a site province basis in section 2.5.1.2.1.

2.5.1.2.7.2 Physiography The site (Figures 2.5-1 and 2.5-4) lies in the Pasco Basin, a local physiographic depression within the Columbia Plateau. The Pasco Basin encompasses 1,600 square miles in south central Washington. Within the basin, the ground surface is a gently undulating, semiarid plain, interrupted by low-lying hills and dunes that are dissected by intermittent streams. The basin is transected by the Columbia River which enters the Pasco Basin from the northwest at Sentinel Gap and exits to the southeast at Wallula Gap.

2.5-77

AMENDMENT NO. 18 August 1981 The Columbia River is joined on the west by the Yakima River south of Richland, Washington, and on the east by the Snake River at Pasco, Washington. The northern and southern boundaries of the Pasco Basin are defined by the Saddle Mountains and the Rattlesnake Hills. The easterly end of Manas tash-Hanson Creek, Umtanum and Yak ima Ridges mark the western boundary of the basin. To the east the basin merges into a vast expanse of dunes, dissected flatlands, and coulees.

The WNP 1-2-4 site lies in the central eastern part of the Pasco Basin (Figure 2.5-4). The most prominant drainage feature in this area is the Columbia River, which flows southeasterly several miles north of the site until about 5 miles northeast of the site where southerly direction.

it bends and flows in a East of the river, opposite the site, steep bluffs known as the White Bluffs rise 400 to 500 feet above the river level. The bluffs were created by erosion of the Ringold Formation by both the Columbia River and glacial floodwaters. To the northeast, where the Columbia River bends southward, two large coulees intersect on the east side of the river. These coulees were formed by the scouring action of glacial floods and are partially filled with glaciofluvial deposits.

The site is located west of the Columbia River in an area composed of a gently undulating, low-profile plain, stretching southwesterly to the Rattlesnake Hills. The topography is largely controlled by Pleistocene glaciofluvial deposits and overlying eolian deposits.

There have been no karst terrains, cavernous conditions, local tectonic depressions or related features identified in the vicinity of the site. However, some regional downwarping may be still going in the Pasco Basin.

Figures 2.5-29 and 2.5-35 show the topography and the geology of the area around the WNP-2 site. The rolling plain topography occurs on glaciofluvial and eolian deposits. At the site, the ground surface varies in elevation from approximately 420 to 470 feet. The average ground surface elevation is about 440 feet with approximately 4 feet of variation from this elevation across the area. A large swarm of active dunes lies to the north of the site area but its migratory direction is northeasterly away from the site.

2.5-78

WNP -2 AMENDMENT NO. 18 August 1981 2.5.1.2.7.3 Stratigraphy and Lithology The areal geology of the site and vicinity was studied in road cuts, trenches, and outcrops with the aid of aerial photographs. This geology is shown on Figures 2.5-29 and 2.5-35 for the site vicinity and plant site, respectively.

The subsurface geology is based on data from 140 boreholes drilled for the site investigations (see Figures 2.5-30, 2.5-31, 2.5-32, 2.5-33, and 2.5-34). Ten of these boreholes provided bedrock information, bottoming in flows of the Yakima Basalt. The logs of these borings are presented in Appendix 2.5-A. Locations of boreholes drilled at the site and in the immediate vicinity are shown on Figures 2.5-61, 2.5-62, and 2.5-63. A trench excavated for this investigation is located on Figure 2.5-62 and the logs of the trench are shown in Appendix 2.5-F. Results of geologic mapping of excavations during construction of the WNP-2 site are presented in Appendix 2.5-H.

The stratigraphy of the Pasco Basin is presented on Figure 2.5-5. The stratigraphic section at the site is illustrated on Figure 2.5-28. The correlation of the geologic units at the site was made on the basis of stratigraphic position, lithology, and other criteria. The basalt flows were core drilled in order to provide a means of utilizing direct lithologic examination (Appendix 2.5-A) and geochemical analysis (Appendix 2.5B). An evaluation of these and other correlation methods is given by Brown and Ledgerwood (1973). The resulting correlations at the site are shown on Figures 2.5-31, 2.5-33, and 2.5-34.

The plant site is underlain by three major rock units:

Pre-Columbia River Basalt Group rocks; Columbia River Basalt Group (includes the Ellensburg Formation); and late Cenozoic sediments (includes the Ringold Formation, Palouse Soil, and Hanford formation [Pasco Gravel]). The succession of materials encountered in the subsurface is shown in the stratigraphic section at the plant site, Figure 2.5-28.

This section was developed from ten deep geologic borings (see Appendix 2.5A). Five basalt flows and several associated interbedded sediments were identified beneath the site on the basis of these deep borings. From oldest to youngest, the units are: undifferentiated Saddle Mounatins Basalt flows, Selah Member of the Ellensburg Formation, Pomona Basalt, Rattlesnake Ridge Member of the Ellensburg Formation, and the Ward Gap-Elephant Mountain Basalt. These rocks are of late Miocene to early Pliocene age. The Ringold Formation of Pliocene age unconformably overlies the Ward Gap-Elephant Mountain Basalt, which in turn, is mantled locally by glaciofluvial and glaciolacustrine sediments and 2.5-79

AMENDMENT NO. 18 August 1981 by Holocene eolian, alluvial, and colluvial deposits.

Lithologic descriptions of these stratigraphic units can be found in section 2.5.1.2.2.

2.5.1.2.7.4 Structural Geology The WNP 1-2-4 site is located in the Pasco Basin between the west-northwest trending Gable Butte-Gable Mountain anticlines on the north and the Rattlesnake Hills-Wallula alignment anticline on the south. The few mapped faults that occur in the Pasco Basin are associated with folds.

Aerial photographic analysis and ground inspection were made of the area five miles around the site in all directions.

No geologic, geomorphic, or topographic indicators of faulting were identified in material younger than'he basalt within 5 miles of the site. The closest mapped surface fault is on Gable Mountain about site (Figure 2.5-17).

ll miles northeast of the A continuity survey was made in the upper. Ringold Formation exposed in the White Bluffs east of the site for a distance of approximately 28 miles (Figures 2.5-36 and 2.5-37).

Results of this .survey and subsequent mapping of the area east of Wooded Island (Figure 2.5-36) indicate that beds within the exposed upper Ringold Formation are essentially horizontal. No faulting was observed in these units.

Figure 2.5-30 illustrates the structural geology of the site vicinity. Data from all available wells and boreholes in the vicinity which penetrated basalt were used to develop the top of basalt contours shown on Figure 2.5-30. The contours represent the contact between the upper Yakima Basalt and Ringold Formation. An erosional unconformity exists between these two units and the contours probably reflect some buried topography on the eroded basalt surface.

In the area shown on Figure 2.5-30, the amount of variation from a true structural datum appears to be less than the contour interval of the map.

The lowest known elevation of the top of the basalt in the Cold Creek Syncline (Figure 2.5-30) is 163 feet below sea level (Hanford Well 15-15, Blume and Associates, 1971). The elevation of the top of basalt beneath the site is about 85 feet below sea level. The total relief on the cross-section (Figure 2.5-31) is about 630 feet in a distance of 17-1/2 miles.

Figures 2.5-33 and 2.5-34 present three cross-sections through the site area. The horizontal and vertical scales 2.5-80

AMENDMENT NO. 18 August 1981 of the cross-sections are the same so that there is no exaggeration or distortion of the presentation. The elevations relative to sea level of all of the diagnostic contacts indicate there is very little structural relief in the area of the investigations.

A distinct structural high that is about 150 feet above the surrounding gradient was encountered in BH-139A. Seismic refraction profiles (Appendix 2.5D) also identify this high but show nothing other than a local fold structure. A comparison of the seismic profile data of this structure with Figure 2.5-32 supports the interpretation of a fold occurring at this locality.

The local gradient on the Pomona Basalt in the site area is about 15 to 20 feet vertical per 1,000 feet horizontal to the southwest. Although the gradient is 3 to 5 times steeper on the high at BH-139A, the gradients on the major anticlinal structures are on the order of 100 to 200 feet vertical per 1,000 feet horizontal. Figures 2.5-36 and 2.5-37 indicate that the site area does not lie on or near a major fold in the subsurface of the Pasco Basin.

2.5.1.2.7.5 Engineering Geology There are no deformational zones, shears, joints, fractures, or folds at this site that would have an influence on structural foundations.

There are no zones of alteration, irregular weathering profiles, or zones of structural weakness at this site that would have an influence on structural foundations.

Because basalt bedrock is at an approximate depth of 525 feet at WNP-2 site, unrelieved residual stresses in bedrock would have no influence on structural foundations and are not a consideration at this site.

The soils beneath the site are derived from predominantly basaltic and silicic rock types that are chemically stable.

None of the rocks or soils beneath the NNP-2 site would be unstable because of their mineralogy.

There is no evidence that man might have altered the subgrade mineral condition at the site. The only known commercial value of the mineral substances beneath the site arises from the possible use of the glaciofluvial sand as borrow. These materials abound in the region and have no special foreseeable value that would induce any removals near the plant site.

2.5-81

AMENDMENT NO. 18 August 1981 2.5.1.2.7.6 Groundwater Groundwater occurs at the site under confined and unconfined conditions. Water existing in an unconfined state in the glaviofluvial deposits and Ringold Formation comprises the regional groundwater system. Locally, water may occur under confined conditions within these sediments. Water in the lower part of the Ringold Formation is confined when it separated from the overlying unconfined system by relatively is impermeable material. Water in the deeper basalt aquifer system is in a confined state.

The water table at the plant site occurs at approximately elevation 380 feet. This elevation is below the foundation of Category I structures. Existing water-level data shows that the elevation of the water table is relatively stable at the plant site. Groundwater conditions of the plant site are discussed in detail in Subsection 2.4 .13 .

2. 5-82

WNP -2 AMENDMENT NO. 18 August 1981 REFERENCES Abbott, A.T., 1953, Geology of the Northwest Portion of the Mount Aix Quadrangle: Ph.D. Dissertation, University of Washington, Seattle.

Adams, J.B., 1961, Petrology and Structure of the Stehekin-Twisp Pass Area, Northern Cascades, Washington: Ph.D.

Dissertation, University of Washington, Seattle.

Allen, J.E., 1959, Columbia River Gorge: in Guidebook for Geological Society of America Field Trip Excursions, 1958, University of Oregon, Oregon Department of Geology and Mineral Industries Field Trip Guidebook, Bulletin 50.

Anderson, C.A., 1965, Surficial Geology of the Fall City Area, Washington: Master's Thesis, University of Washington, Seattle.

Anderson, J.L., 1978, Stratigraphy and Structure of the Columbia River Basalt in the Clackamas River Drainage:

Master's Thesis, Portland State University, Portland.

Anderson, J. L., 1980, Deformation and Canyon Cutting in Post-Grande Ronde, pre-Frenchman Springs Time, Grayback Mountain, South-Central Washington: Geological Society of America, Abstracts with Programs, V. 12, No. 3, p. 93.

ARHCO, 1976, Preliminary Feasibility Study on Storage of

- Radioactive Waste in Columbia River Basalts: Atlantic Richfield Hanford Company, Report ARH-ST-137, Richland, Washington.

Armstrong, R. L., 1979, Cenozoic Igneous History of the United States Cordillera from latitude 42o to 49o N, in Smith, R. B., and Eaton, G. P., Eds.: Cenozoic Tectonics and Regional Geophysics of the Western Cordillera, Geological Society of America Memoir 152, p. 265-282.

Artim, E.R., and Wunder, J.M., 1976, Preliminary Geologic Map of the LaConner Quadrangle, Skagit County, Washington:

Washington Division of Geology and Earth Resources Open-Pile Map OF-76-1.

Atwater T., 1970, Implications of Plate Tectonic Evolution of Western North America: Geological Society of America Bulletin, v. 81, No. 12, p. 3513-3536.

2. 5-83

WNP -2 AMENDMENT NO. 18 August 1981 Baker, V. R., 1973, Paleohydrology and Sedimentology of Lake Missoula Flooding in Eastern Washington: Geological Society of America Special Paper 144, 79 p.

Baldwin, E., M., 1969, Geology of Oregon: University of Oregon Book Store, Eugene, Oregon, 136 p.

Baldwin, E.M., Brown, R.D., Jr., Gair, J.E., and Pease, M.H., Jr., 1955, Geology of the Sheridan and McMinnville Quadrangles, Oregon: U.S. Geological Survey Oil and Gas Investigation Map OM-155.

Baldwin, E.M., and Roberts, A.E., 1952, Geology of the Spirit Mountain Quadrangle, Oregon: U.S. Geological Survey Oil and Gas Investigation Map OM-129.

Barksdale, J. D., 1975, Geology of the Methow Valley, Okanogan County, Washington: Washington Division of Mines and Geology Bulletin 68, 72 p.

Beaulieu, J.D., 1973, Environmental Geology of Inland Tillamook and Clatsop Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 79, 65 p.

Beaulieu, J.D., 1974, Geologic Hazards of the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 82, 77 p~

Beaulieu, J.D., 1977, Geologic Hazards of Parts of Northern Hood River, Wasco, and Sherman Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 91, 95 p.

Beaulieu, J.D., 1980, Geologic Field Trips in Northern Oregon and Southern Washington: Oregon Department of Geology and Mineral Industries Bulletin 77, 206 p.

Beck, G. F., 1956, Written Communication to R. E. Brown, November 20, 1956.

Becraft; G.E., 1966, Geologic Map of the Wilmont Creek Quadrangle, Fer ry and Stevens Counties, Washington: U.S.

Geological Survey Geologic Quadrangle Map GQ-538, Scale 1:62,500.

Becraft, G.E., and Weis, P.L., 1963, Geology and Mineral Depos its o f th e Tu r tie La k e Quadr angle, Wash ing ton: U. S.

Geological Survey Bulletin 1131, 73 p.

2. 5-84

WNP -2 AbKNDMENT NO. 18 August 1981 Beeson, M.H., Benson, G.T., Johnson, A., and others, 1975, Portland Environmental Geology, Fault Identification, Portland: Portland State University Department of Earth Sciences.

Beeson, M. H. and Moran, M. R., 1979, Stratigraphy and Structure of the Columbia River Basalt Group in the Cascade Range, Oregon: U.S. Department of Energy Report RLO-1040-Tl, p. 5-77.

Bentley, R. D., 1977, Stratigraphy of the Yakima Basalts and Structural Evolution of the Yakima Ridges in the Western Columbia Plateau: Geology Excursions in the Pacific Northwest, Geological Society of America Annual Meeting, Seattle, Washington.

Bentley, R. D., Anderson, J. L., Campbell, N. P., and Swanson, D. A., 1980, Stratigraphy and Structure of the Yakima Indian Reservation, with Emphasis on the Columbia River Basalt Group: United States Geological Survey Open-File Report 80-200, 83 p.

Bingham, J. W. and Grolier, M. J., 1966, The Yakima Basalt and Ellensburg Formation of South-Central Washington:

United States Geological Survey Bulletin 1224-G, 15 p.

Bingham, J. W., Londquist, C. J., and Baits, E. H., 1970, Geologic Investigation of Faulting in the Hanford Region, Washington: (with a Section on the Occurrence of Microearthquakes by A. M. Pitts): United States Geological Survey Open File Report, 70-27, 104 p.

Birdseye, R.U., 1976, Geologic Map of East-central Jefferson County, Washington: Washington Division of Geology and Earth Resources Open-File Map OF-76-26.

Blume, J. A. and Associates, 1971, A summary report:

Seismic Evaluation and Development of Ground Acceleration and Response Spectra for FFTF Site: JABE-WADCO-03, WADCO, Richland, Washington.

Blume, J. A. and Associates, 1972, Seismic Exposure and Criteria for Seismic Analysis of Grand Coulee Dam, Columbia River, Grand Coulee, Washington: A report prepared for Washington Public Power Supply System, 46 p.

Bond, J. G., 1963, Geology of the Clearwater embayment:

Idaho Bureau of Mines and Geology Pamphlet 128, 83 p.

2.5-85

AMENDMENT NO. 18 August 1981 Bond, J. G., 1978, Geologic Map of Idaho: Idaho Department of Lands, Bureau of Mines and Geology.

Bond, J. G., Kauffman, T. D., Miller, D. A., and Barrash, W., Geoscience Research Consultants, 1978, Geology of the Southwest Pasco Basin: RHO-BWI-C-25, Rockwell Hanford Operations, Richland, Washington.

Bostock, H.S., 1963, Geology, Squamish, British Columbia:

Geological Survey of Canada Map 42-1963.

Bradshaw, H.E., 1964, Geology of the Palmer Volcanics:

Masters Thesis, University of Oregon, Eugene. 4 Bretz, J. H., 1923, The Channeled Scablands of the Columbia Plateau: Journal of Geology, V. 31, No. 8, p. 617-649.

Bretz, J. H., 1959, Washington's Channeled Scabland:

Washington Division of Mines and Geology Bulletin 45, Olympia, Washington.

Bretz, J. H., Smith, H. T. U., and Neff, G. E., 1956, Channeled Scabland of Washington--New Data and Interpretations: Geological Society of America Bulletin, v.

67, No. 8, p. 957-1049.

Brooks, W. E., Jr., 1974, Stratigraphy and Structure of the Columbia River Basalt in the Vicinity of Gable Mountain, Benton County, Washington: Master's Thesis, University of Washington, Seattle Washington.

Brown, D.E., McLean, G.D., Priest, G.R., Woller, N.M., and Black, G.L., 1980a, Preliminary Geology and Geothermal Resource Potential of the Belknap-Foley Area, Oregon:

Oregon Department of Geology and Mineral Industries Open-File Report 0-80-2, 58 'p., 1 plate.

Brown, D.E., McLean, G.D., Woller, N.M., and Black, G.L.,

1980b, Preliminary Geology and Geothermal Resource Potential of the Willamette Pass Area, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report 0-80-3, 65 p., 1 plate.

Brown, D.E ., McLean, G.D., and Black, G.L., 1980c, Preliminary Geology and Geothermal Resource Potential of the Northern Harney Basin, Oregon: -Oregon Department of Geology and Mineral Industries Open-File Report 0-80-6, 52 p.,

4 plates.

2.5-86

AMENDMENT NO. 18 August 1981 Brown, D.E., McLean, G.D., and Black, G.L., 1980d, Preliminary Geology and Geothermal Resource Potential of the Southern Harney Basin, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report 0-80-7, 90 p.,

8 plates.

Brown, D. J. and Ledgerwood, R. K., 1973, Stratigraphy and Structure of Yakima Basalt in the Pasco Basin, Washington:

Geological Society of America Bulletin 77, Cordilleran Section Field Trip No. 6.

Brown, R. E., 1969, Some Suggested Rates of Deformation of the Basalts in the Pasco Basin, and Their Implications:

Battelle Northwest Laboratory, Report No. BNWL-SA-2443, 10 p.

Brown, R. E., 1970, Interrelationships of Geologic Formations and Processes Affecting Ecology as Exposed at Rattlesnake Springs, Hanford Project: Battelle Northwest Laboratory, Arid Land Ecology Program, Reprint Series No. 3, BNWL-B<<29.

Brown, R. E. and Brown, D. J., 1961, The Ringold Formation and its Relationships to Other Formations: Hanford Atomic Projects Operation, Report No. HW-SA-2319, 17 p.

Buckovic, W.A., 1974, The Cenozoic Stratigraphy and Structure of a Portion of the West Mt. Rainier Area, Pierce County, Washington: Master's Thesis, University of Washington, Seattle.

Bureau of Reclamation, 1974, Geologic and Seismic Evaluation of Grand Coulee Dam and Forebay: U.S. Department of the Interior, Bureau of Reclamation.

Byerly, G. and Swanson, D., 1978, Invasive Columbia River Basalt Flows along the Northwestern Margin of the Columbia Plateau, North-Central Washington: Geological Society of America Abstracts with Programs, V. 10, No. 3, p. 98.

Caldwell, D., 1981, personal communication to Dr. G. A Davis.

Camp, V. E., 1976, Petrochemical Stratigraphy and Structure of the Columbia River Basalt, Lewiston Basin Area, Idaho-Washington: Ph.D. Dissertation, Washington State University, Pullman, Washington.

Camp, V. E. and Hooper, P. R., 1980, Tectonic Evolution of the Southeastern Part of the Columbia River Basalt Plateau:

Geological Society of America Abstracts with Programs, V.

12, No. 3, p. 100-101.

2. 5-87

AMENDfIENT NO. 18 August 1981 Camp, V. E., Price, S. M., and Reidel, S. P.,

Summary of the Gr ande Ronde Basalt Type Section 1978,'escriptive Columbia River Basalt Group: RHO-BWI-LD-15, Rockwell Hanford Operations, Richland, Washington.

Campbell, A.B., and Raup, O.B., 1964, Preliminary Geologic Map of the Hunters Quadrangle, Stevens and Ferry Counties, Washington: U.S. Geological Survey Field Studies Map MF-176, Scale 1:48,000.

Campbell, N. and Bentley, R. 1980, Late Quaternary Faulting, Toppen is h- Ridg e- Sou thcen tr al Wash ing to n, Geolog ical Soc ie ty of America, Abstracts with Programs, V. 12, No. 3, p. 101.

Canadian Geological Survey, 1973, preliminary Compilation of the Geology of Parts of British Columbia and Washington, N.T.S. 92, Fraser River: Open-File Map 165, Scale 1:1,000,000.

Canadian Geological Survey, 1978, Preliminary Draft of Compilation of the Geology of Parts of British Columbia and Washington, N.T.S. 82, Kootenai River: Open-File Map 2216, Scale 1:1,000,000.

Cantwell, T. and Orange, A., 1965, Further Deep Resistivity Measurements in the Pacific Northwest: Journal of Geophysical Research, V. 70, No. 16, p. 4068.

Carnahan, G.L., 1962, Geology of Southwestern Part of the Eagle Cap Quadrangle, Wallowa Mountains: Master's Thesis, Oregon State University, Corvallis.

Carson, R.J., 1976, Preliminary Geologic Map of the Brinnon Area,.Jefferson County: Washington Division of Geology and Earth Resources Open-Pile Map OF-76-3.

Cashman, S. M., 1974, Geology of the Peshastin Creek Area, Washington: Masters Thesis, University of Washington, Seattle.

Cater, F.W., and Crowder, D.F., 1967, Geologic Map of the Holden Quadrangle, Snohomish and Chelan Counties, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-646.

Cater, F.W., and Wright, T.L., 1967, Geologic Map of the Lucerne Quadrangle, Chelan County, Washington: U.S.

Geological Survey Geologic Quadrangle Map GQ-647.

2. 5-88

WNP -2 AMENDMENT NO. 18 August 1981 Christiansen, R. L., and McKee, E. H., 1979, Late Cenozoic Volcanic and Tectonic Evolution of the Great Basin and Columbia Intermontane Regions" in Smith, R. B., and Eaton, G. P., Eds.: Cenozoic Tectonics and Regional Geophysics of the Western Cordillera, Geological Society of America Memoir 152, p. 283-311.

Coates, J.A., 1970, Stratigraphy and Structure of Manning Park Area, Cascade Mountains, British Columbia: Geological Association of Canada Special Paper 6, p. 149-154.

Cockfield, W.E., 1961, Geology and Mineral Deposits of the Nicola Map-area, British Columbia: Canadian Geological Survey Memoir 249, Map 886-A.

1 Compton, R. R. et al., 1977, Oligocene and Miocene Metamorphism, Folding and Low Angle Faulting in Northwestern Utah: Geological Society of America Bulletin, V. 88, No. 9,

p. 1237-1250.

Coney, P. J., 1979, Mesozoic-Cenozoic Cordilleran Plate Tectonics, in Smith, R. B., and Eaton, 'G. P., Eds., Cenozoic Tectonics and Regional Geophysics of the Western Cordillera, Geological Society of America Memoir 152, p. 33-50.

Conway, R.D., 1971, Geochemistry of the Cypress Island Ultramafic Body, Washington: Ph.D. Dissertation, University of Washington, Seattle, 108 p.

Coombs, H. A., 1941, Hornblende and Magnetite Heavies in the Ellensburg of Central Washington: Journal of Sedimentar'y Petrology, V. 11, No. 3, p. 142-144.

Coombs, H. A. (Chairman, Ad Hoc Committee on Geologic Hazards), 1974, Meeting the Geologic Hazards Challenge:

Report to Washington State Legislature, December.

Crandell, D.R., 1963, Surficial Geology and Geomorphology of the Lake Tapps Quadrangle, Washington: U.S. Geological Survey Professional Paper 388-A, 84 p.

Crandell, D. R., 1973, Map Showing Potential Hazards from Future Eruptions of Mount Rainier, Washington: United Sta'tes Geological Survey, Miscellaneous Investigations Map I-836.

Crandell, D. R., 1976, Preliminary Assessment of Potential Hazards from Future Volcanic Eruptions in Washington:

United States Geological Survey, Miscellaneous Field Studies Map MF-774.

2.5-89

AMENDMENT NO. 18 August 1981 Crandell, D. R., Mullineaux, D. R. and Rubin, M., 1975, Mount St. Helens Volcano: Recent and Future Behavior:

Science, V. 187, No. 4175, p. 438-441.

Crandell, D. R., Mullineaux, D. R., 1976, Potential Hazards from Future Eruptions of Mount St. Helens Volcano, Washingington: United States Geological Survey Open File Repor t 7 6-4 91, 25 p.

Crowder, D.F., Tabor, R.W., and Ford, A.B., 1966, Geologic Map of the Glacier Peak Quadrangle, Snohomish and Chelan Counties, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-473.

Danes, Z. F., 1969, Gravity Results in the State of Washington: Northwest Science, V. 43, No. 1, p. 34.

Danner, W. R., 1966, Limestone Resources of Western Washington: Washington Division of Mines and Geology Bulletin 52, 474 p.

Dings, M.G., and Whitebread, D.H., 1965, Geology and Ore Deposits of the Metaline Zinc-Lead District, Pend Oreille County, Washington: U.S. Geological Survey Professional Paper 489, 107 p.

Duffell, S., and McTaggart, K.C., 1952, Ashcroft Map-area, British Columbia: Canadian Geological Survey Memoir 262, Map 1010-A.

Dungan, M.A., 1974, The Origin, Emplacement, and Metamorphism of the Sultan Mafic-Ultramafic Complex, Snohomish County, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Easterbrook, D.J., 1968, Pleistocene Stratigraphy of Island County; Part 1: Washington Department of Water Resources Water-Supply Bulletin No. 25.

Easterbrook, D. J., 1976a, Quaternary Geology of the Pacific Nor thwes t: in Mahaney, W. C., Ed., Quaternary Stratigraphy of North America: Dowden, Hutchinson, and Ross, Straudsberg, Pennsylvania, p. 441-462.

Easterbrook, D.J., 1976b, Geologic Map of Western Whatcom County, Washington: U.S . Geological Survey Miscellaneous Investigation Series Map I-854-B, Scale 1:62,500.

2. 5-90

WNP -2 AMENDMENT NO. 18 August 1981 Eddy, P.A., 1971, Investigations - Geology and Ground Water Resources, Vicinity of Toutle River and SR 504, Cowlitz County, Washington: Washington Department of Ecology Technical Report 71-18.

Farkas, S. E., 1972, Structural Relationships of Folds and Faults in Y'akima Basalt and Ellensburg Formation, Central Washington: Geological Society of America Abstracts with Programs, V. 4, No. 6, p. 375.

Fecht, K. R., 1978, Geology of Gable Mountain-Gable Butte Area: RHO-BWI-LD-5, Rockwell Hanford Operations, Richland, Washington.

Fischer, J.F., 1971, The Geology of the White River-Carbon Ridge Area, Cedar Lake Quadrangle, Cascade Mountains: Ph.D.

Dissertation, University.,of California, Santa Barbara.

Fischer, R.V., 1957, Stratigraphy of the.Puget Group and Keechelus Group in the Elbe-Packwood Area of Southwestern Washington: Ph.D. Dissertation, University of Washington, Seattle, 157 p.

Fiske, R.S., Hopson, C.A., and Waters, A.E., 1963, Geology of the Mount Rainier National Park, Washington: U.S.

Geological Survey Professional Paper 444.

Foundation Sciences, Inc., 1980, Geologic Reconnaissance of Parts of the Walla Walla and Pullman, Washington, and Pendleton, Oregon lo x 2o AMS Quadrangles: Prepared by Kienle, C. F., 76 p.

Fox, K.F., 1978, Geologic Map of the Mt. Bonaparte Quadrangle, Okanogan County, Washington: U.S. Geological Survey Open File Report 78-732, 1 plate, Scale 1:48,000.

Fox, K.F., Jr., and Rinehart, C.D., 1972, Distribution of Copper and Other Metals in Gully Sediments of Part of Okanogan County, Washington: Washington Division of Mines and Geology Bulletin 65, 38 p.

Fox, K. F., Jr., Rinehart, C. D., and Engels, J. C., 1977, Plutonism and Orogeny in North Central Washington: United States Geological Survey Professional Paper 989, 27 p.

Fruchter, J. S. and Baldwin, S. F, 1975, Correlations Between Dikes of the Monument Swarm, Central Oregon, and Picture Gorge Basalt Flows: Geological Society of America Bulletin, V. 86, No. 4, p. 514.

2.5-91

AMENDMENT NO. 18 August 1981 Fryxell, R., 1965, Mazama and Glacier Peak Volcanic Ash Layers; Relative Ages: Science, V. 147, No. 3663,

p. 1288-1290.

Fulton, R.J., 1972, Bedrock Topography of the North Okanagan Valley and Stratigraphy of Unconsolidated Valley Fill:

Canadian Geological Survey Paper 72-8, pt. B.

Garling, M.E., Molenaar, D., Bailey, E.G., and others, 1965, Water Resources and Geology of the Kitsap Peninsula and Certain Adjacent Islands: Washington Division of Water Resources Bulletin 18, 309 p.

Gayer, M.J., 1976, Geologic Map of Northeastern Jefferson County, Washington: Washington Division of Geology and Earth Resources Open File Map OF-76-21.

Glover, S. L., 1935, Preliminary Report on Petroleum and Natural Gas in Washington: Washington Department of Conservation and Development, Report of Investigation No. 4,

p. 10-15.

Glover, S. L., 1953, Addenda to Preliminary Report on Petroleum and Natural Gas in Washington: Washington Department of Conservation and Development.

Goff, F. E. and Myers, C. W., 1978, Structural Evolution of East Umtanum and Yakima Ridges, South-Central Washington:

Geological Society of America, Abstracts with Programs, V. 10, No. 7, p. 408.

Gower, H.D., 1978, Tectonic Map of the Puget Sound Region, Showing Locations of Faults, Principal Folds and Large-Scale Quaternary Deformation: U.S. Geological Survey Open-File Report OF-78-426.

Gower, H.D., and Pease, M.H., Jr., 1965, Geology of the Montesano Quadrangle: Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-374.

Griggs, A.B., 1973, Geologic Map of the Spokane Quadrangle, Washington, Idaho, and Montana: U.S. Geological Survey Miscellaneous Investigations Map I-768.

Grolier, M. J., and Bingham, J. W., 1971, Geologic Map and Sections of Parts of Grant, Adams, and Franklin Counties, Washington: United States Geological Survey, Miscellaneous Geologic Investigations Map I-589.

2.5-92

AMENDMENT NO. 18 August 1981 Grolier, M. J., and Bingham, J. W., 1978, Geology of Parts of Grant, Adams, and Franklin Counties, East-Central Washington: Washington Division of Mines and Geology Bulletin 71, Olympia, Washington, 91 p.

Gunning, H. C. and White, W. H., Editions, 1966, Tectonic History and Mineral Deposits of the Western Cordillera:

Canadian Institute of Mining and Metallurgy, Special Volume No. 8.

Gustafson, E. P., 1973, The Vertebrate Fauna of the Late Pliocene Ringold Formation, South-Central Washington:

Masters's Thesis, Washington State University, Pullman, Washington.

Gustafson, E. P., 1976, A Revised Chronology for Vertebrate Fossil Faunas in Eastern Washington: Geological Society of America, Abstracts with Programs, V. 8, No. 2, p. 377-378.

Hamilton, W., 1969, Reconnaissance Geologic Map of the Riggins Quadrangle, West-central Idaho: U.S. Geological Survey Miscellaneous Investigations Map I-579.

Hammond, P.E., 1975, Preliminary Geologic Map and Cross Sections With Emphasis on Quaternary Volcanic Rocks, Southern Cascade Mountains, Washington: Washington Division of Geology and Earth Resources Open-File Map OF-75-13.

Hammond, P.E., Pederson, S.A., Hopkins, K.D., Aiken, D.,

Harle, D.S., Danes, Z.F., Konicek, D.L. and Stricklin, C.R.,

1976, Geology and Gravimetry of the Quaternary Basaltic Volcanic Field, Southern Cascade Range, Washington: in Proceedings of the Second United Nations Symposium on the Development and Use of Geothermal Resources, San Francisco, 1975, Vol. 1, p. 397-404.

Hampton, E. R., and Brown, S.G., 1974, Geology and Ground-water Resources of the Upper Grande Ronde River Basin, Union County, Oregon: U.S. Geological Survey Water-Supply Paper 1597, 99 p.

Hanson, K.L., 1976, Geologic Map of the Orcas-Port Ludlow Area, Jefferson County, Washington: Washington Division of Geology and Earth Resources Open-File Map OF-76-20.

Hart, D.H., and Newcomb, R.C., 1967, Geology and Ground-water of the Tualatin Valley, Oregon: U.S.

Geological Survey Water-Supply Paper 1697, 172 p.

2.5-93

0 AMENDMENT NO. 18 August 1981 Hartman, D.A., 1973, Geology and Low-grade Metamorphism of the Greenwater River Area, Central Cascade Range, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Hawkins, J.W., 1968, Regional Metamorphism, Metasomatism and Partial Fusion in the Northwestern Part of the Okanogan Range, Washington: Geological Society of America Bulletin, Vol 79'o 12' 1785 1820.

Heath, M.T., 1971, Bedrock Geology of the Monte Cristo Area, Northern Cascades, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Henriksen, D.A., 1956, Eocene Stratigraphy of the Lower Cowlitz River Eastern Willapa Hills Area, Southwestern Washington: Washington Division of Mines and Geology Bulletin 43, 122 p.

Hibbard, M.J., 1971, Evolution of a Plutonic Complex, Okanogan Range, Washington: Geological Society of America Bulletin, Vol. 82, No. 11, p. 3013-3048.

Hietanen, A., 1963a, Anorthosite and Associated Rocks in the Boehls-Butte Quadrangle and Vicinity, Idaho: U.S.

Geological Survey Professional Paper 344-B, 78 p.

Hietanen, A., 1963b, Metamorphism of the Belt Series in the Elk River-Clark Area, Idaho: U.S. Geological Survey Professional Paper 344-C, 49 p.

Hill, D. P., 1972, Crustal and Upper Mantle Structure of the Columbia Plateau from Long Range Seismic-Refraction Measurements: Geological Society of America Bulletin, V. 83, No. 6, p. 1639-1648.

Hill, D. P., 1980, Seismic Evidence for the Structure and Cenozoic Tectonics of the Pacific Coast States, in Smith, R.

B., and Eaton, G. P., Eds., Cenozoic Tectonics and Regional Geophysics of the Western Cordillera, Geological Society of America Memoir 152, p. 145-174.

Hogenson, G.M., and Foxworthy, B.L., 1965, Groundwater in the East Portland Area, Oregon: U.S. Geological Survey Water-Supply Paper 1793, 78 p.

Holden, G. S., 1974, Chemical and Petrographic Stratigraphy of the Columbia River Basalt in the Lower Salmon River Canyon, Idaho: Master's Thesis, Washington State University, Pullman, Washington.

2.5-94

AMENDMENT NO. 18 August 1981 Hopson, C. A. and Mattinson, J. M., 1973, Ordovician and Late Jurassic Ophiolitic Assemblages in the Pacific Northwest: Geological Society of America Abstracts with Programs, V. 5, No. 1, p. 57.

Hosterman, J.W., Scheid, V.E., Allen, V.T., and Sohn, I.G.,

1960, Investigations of Some Clay Deposits in Washington and Idaho: U.S. Geological Survey Bulletin 1091, 147 p.

Huntting, M.T., Bennett, W.A., Livingston, V.E., and Moen, W.S., compilers, 1961, Geologic Map of Washington:

Washington Department of Conservation, Scale 1:500,000.

Hyndman,'.W., 1968, Petrology and Structure of Nakusp Map-area, British Columbia: Canadian Geological Survey Bulletin 161.

Jones, A.G., 1959, Vernon Map-area, British Columbia:

Canadian Geological Survey Memoir 296, Map 1059A, 186 p.

Jones, F. O., and Deacon, R. J., 1966, Geology and Tectonic History of the Hanford Area and its Relation to the Geology and Tectonic History of the State of Washington and the Active Seismic Zones of Western Washington and Western Montana: Report Prepared for Douglas United Nuclear, Inc.,

DUN-1410, Richland, Washington.

Jones, M. G., and Landon, R. D., 1978, Geology of the Nine Canyon Map Area: RHO-BWI-LD-6, Rockwell Hanford Operations, Richland, Washington.

Kendall, J. J., and Dale, R. C., and Davis, G. A., 1981, The Structural Relationship of the Olympic-Wallula Lineament, Hite Fault System and LaGrande Fault System, the Blue Mountains of Umatilla County Oregon: Geological Society of America Abstracts with Programs V. 13, No. 2, p. 64.

Kiel, W., 1980, personal communication to Dr. G. A. Davis.

King, P. B., 1959, The Evolution of North America:

Princeton University Press, Princeton, N. J., 190 p.

King, P. B., 1969, The Tectonics of North America - A Discussion to Accompany the Tectonic Map of North America:

United States Geological Survey, Professional Paper 628, 94 p.

2.5-95

AMENDMENT NO. 18 August 1981 Kleck, W. D., 1976, Chemistry, Petrography, and Stratigraphy of the Columbia River Group in the Imnaha River Valley Region, Eastern Oregon and Western Idaho: Ph.D.

Dissertation, Washington State University, Pullman, Washing to n.

Kleinkopf, M.D., Harrison, J.E., and Zartman, R.E., 1972, Aeromagnetic and Geologic Map of Part of Northwestern Montana and Northern Idaho.: U.S. Geological Survey Geophysical Investigations Map GP-830.

Laravie, J. A., 1976, Geologic Field Studies Along the Eastern Border of the Chiwaukum Graben, Central Washington:

Master's Thesis, University of Washington, Seattle.

Laubscher, H. P., 1977, Structural Analysis of Post-Yakima Deformation, Columbia Plateau, Washington: Draft report prepared for United Engineers and Constructors, Inc.

Lawrence R. D., 1968i The Eightmile Creek Fault/

~

Northeastern Cascade Range, Washington: .Ph.D. dissertation, Stanford University.

Lawrence, R. D., 1976, Strike-slip Faulting Terminates the Basin and Range Province in Oregon: Geological Society of America Bulletin, V. 87, No. 6, p. 846-850.

Lentz, R.T., 1977, Petrology and Stratigraphy of the Portland Hills Silt: Master's Thesis, Portland State University, Portland, 144 p.

Little, H.W., 1957, Kettle River (east half), Similkameen, Kootenay and Osoyoos Districts, British Columbia: Canadian Geological Survey Map 6-1957, Scale 1:253,440.

Little, H.W., 1960, Nelson Map-area, West Half, British Columbia: Canadian Geological Survey Memoir 308, 205 p.

Little, H.W., 1961, Geology, Kettle River (west half),

British Columbia: Canadian Geological Survey Map 15-1961, Scale 1:253,440.

Livingston, V.E., Jr., 1966, Geology and Mineral Resources of the Kelso-Cathlamet Area, Washington: Washington Division of Mines and Geology Bulletin 54.

Livingston, V. E., Jr., 1969, Geologic History and Rocks and Minerals of Washington: Washington Division Mines and Geology, Information Circular 45, 42 p.

2.5-96

AMENDMENT NO. 18 August 1981 Livingston, V.E., Jr., 1971, Geology and Mineral Resources of King County, Washington: Washington Division of Mines of Geology Bulletin 63.

Loring, A. K., 1976, Distribution in Time and Space of Late Phanerozoic Normal Faulting in Nevada and Utah: Utah Geology, V. 3, No. 2, p.97-109.

Lovseth, T.P., 1975, The Devils Mountain Fault Zone, Northwestern Washington: Master's Thesis, University of Washington, Seattle, 29 p.

Lowes, B. E., 1971, Metamorphic Petrology and Structural Geology of the Area East of Harrison Lake, British Columbia: Ph.D. Thesis, University of Washington, Seattle.

Lupher, R. L., 1944, Clastic Dikes of the Columbia Basin Region, Washington and Idaho: Geological Society of America Bulletin, V. 55, No. 12, p. 1431-1462.

Mackin, J. H., 1961, A Stratigraphic Section in the Yakima Basalt and the Ellensburg Formation in South-Central Washington: Report of Investigations No. 19, Washington Division of Mines and Geology, Olympia, Washington, 45 p.

MacLeod, N.S., Tiffin, D.L., Snavely, P.D., Jr., and Currie, R.G., 1977, Geologic Interpretation of Magnetic and Gravity Anomalies in the Strait of Juan de Puca, U.S.-Canada:

~

Canadian Journal of Earth Science, Vol. 14, No. 2,

p. 223-238.

Mattinson, J.M., 1977, Emplacement History of the Tatoosh Volcanic-plutonic Complex, Washington: Ages of Zircons:

Geological Society of America Bulletin, Vol. 88, No. 10,

p. 150 9-1514 .

Mayers, I.R., 1971, An Analysis of Continuous Seismic Profiles From the Strait of Juan de Fuca: Master's Thesis, University of Washington, Seattle.

McKee, 1972, Cascadia, The Geologic Evolution of the Pacific Northwest: McGraw-Hill Book Company, New York, N.Y., 394 p.

McKee, E. H., Swanson, D. A., and Wright, T. L., 1977, Duration and Volume of Columbia River Basalt Volcanism; Washington, Oregon and Idaho: Geological Scoiety of America Abstracts with Programs, V. 9, no. 4, p. 463.

2. 5-97

WNP -2 AMENDMENT NO. 18 August 1981 McLean, Hugh, 1977, Lithofacies of the Blakeley Formation, Kitsap County, Washington, a Submarine Fan Complex: Journal of'edimentary Petrology, Vol. 47, No. 1, p. 78-88.

Menzer, F.J., Jr., 1964, Geology of the Crystalline Rocks West of Okanogan, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Menzer, F. J. and Swanberg, C., 1969, Reverse Faulting Along the West Border of the Central Okanogan Range, Washington:

Geological Society of America Special Paper 121, p. 405.

Miller, F.K., 1974a, Preliminary Geologic Map of the Newport Number 1 Quadrangle, Pend Oreille County Washington and Bonner County, Idaho: Washington Division of Geology and Earth Resources Geologic Map GM-7.

Miller, F.K., 1974b, Preliminary Geologic Map of the Newport Number 2 Quadrangle, Pend Oreille and Stevens Counties, Washington: Washington Division of Geology and Earth Resources Geologic Map GM-8.

Miller, F.K., 1974c, Preliminary Geologic Map of the Newport Number 3 Quadrangle, Pend Oreille, Stevens, and Spokane Counties, Washington: Washington Division of Geology and Earth Resources Geologic Map GM-9.

Miller, F.K., 1974d, Preliminary Geologic Map of the Newport Number 4 Quadrangle, Spokane and Pend Oreille Counties, Washington and Bonner County, Idaho: Washington Division of Geology and Earth Resources Geologic Map GM-10.

Miller, F.K., and Clark, L.D., 1975, Geology of the Chewelah-Loon Lake Area, Stevens and Spokane Counties, Washington: U.S. Geological Survey Professional Paper 806.

Miller, F.K., and Yates, R.G., 1976, Geologic Map of the West Half of the Sandpoint loX2o Quadrangle, Washington: U.S. Geological Survey Open-File Repor t OF-7 6-327.

Miller, G.M., 1979, Western Extent of the Shuksan and Church Mountain Thrust Plates in Whatcom, Skagit, and Snohomish Counties, Washington: Northwest Science, Vol. 53, No. 4,

p. 229-240.

Miller, R. B., 1977a, oral communication to Dr. G. A. Davis.

2.5-98

e WNP -2 AMENDMENT NO. 18 August 1981 Miller, R. B., 1977b, Structure and Petrology of the Ingalls Mafic Ultramafic Complex and Associated Pre-Tertiary Rocks, Central Washington Cascades: Geological Society of America Abstracts with Programs, V. 9, No. 4, p. 468.

Mis ch, P., 196 6, Tectonic Evolution o f Nor them Cascades o f Washington State, a Nest-Cordilleran Case History: in, Gunning, H. C., Ed., A Symposium on the Tectonic History and Mineral Deposits of the Western Cordillera in British Columbia and Neighboring Parts of the United States:

Special Report, Canadian Institute of Mining and Metallurgy, V. 8, p. 101-148.

Misch, 1977a, Bedrock Geology of the North Cascades: in Brown, E. H. and Ellis, R. C. Eds., Geological Excursions in the Pacific Northwest: Geological Society of America 1977 Annual Meeting, Seattle, Washington, p. 1-62.

Misch, P., 1977b, Dextral Displacements at some Major Strike Faults in the North Cascades: Geological Association of Canada Program with Abstracts, p. 37.

Molenaar, D., and Noble, J.B., 1970, Geology and Related Groundwater Occurrence, Southeastern Mason County, Washington: Washington Department of Water Resources Water-Supply Bulletin 29, 145 p.

Monger, J.W.H., 1968, Early Tertiary Stratified Rocks, Greenwood Map-area, (82 E/2) British Columbia: Canadian Geological Survey Paper 67-42, 39 p.

Monger, J.W.H., 1969, Hope (west half), British Columbia:

Canadian Geological Survey Paper 69-47, Map 12-1969.

Moore, J.L., 1965, Surficial Geology of the Southwestern Olympic Peninsula: Master's Thesis, University of Washington, Seattle.

Muessig, 1967, Geology of the Republic Quadrangle and a Part of the Aeneas Quadrangle, Ferry County, Washington, U.S.

Geological Survey Bulletin 1216, 135 p.

Mulcahey, M.T., 1975, The Geology of Fidalgo Island and Vicinity, Skagit County, Washington: Master's Thesis, University of Washington, Seattle, 49 p.

Muller, J.E., 1977, Geology of Vancouver Island: Canadian Geological Survey Open-File Report 463.

2.5-99

i A&IENDMENT NO. 18 August 1981 Mullineaux, D. R., Hyde, J. H. and Rubin, M., 1975, Widespread Late Glacial and Postglacial Tephra Deposits from Mount St. Helens Volcano, Washington: United States Geological Survey, Journal of Research, V. 3, No. 3, p.

329-335.

Mullineaux, D. R., Wilcox, R. E., Ebaugh, W. F., Fryxell, R., and Rubin, M., 1977, Age of the Last Major Scabland Flood of Eastern Washington, as Inferred from Associated. Ash Beds of Mount St. Helens Set S- Geological Society of America Abstracts with Programs, V. 9, No. 7, p. 1105.

Mundorff, M.J., 1964, Geology and Groundwater Conditions of Clark County, Washington: Washington Division of Water Resources Water-Supply Bulletin 9.

Myers, C. W., 1973, Yakima Basalt Flows near Vantage, and from Core Holes in the Pasco Basin, Washington: Ph.D.

Dissertation, University of California at Santa Cruz, Santa Cruz, California.

Myers, D.A., 1970, Availability of Ground Water in Western Cowlitz County, Washington: Washington Department of Ecology Water-Supply Bulletin 35.

Nathan, S. and Fruchter, J. S., 1974, Geochemical and Paleomagnetic Stratigraphy of the Picture Gorge and Yakima Basalts (Columbia River Group) in Central Oregon:

Geological Society of America Bulletin, V. 85, No. 1,

p. 63 76.

Newcomb, R.C., 1952, Ground-water Resources of Snohomish County, Washington: U.S. Geological Survey Water-Supply Paper 1135.

Newcomb, R. C., 1958, Ringold Formation of Pleistocene Age in Type Locality, the White Bluffs, Washington: American Journal of Science, V. 256, No. 5, p. 328-340.

Newcomb, R. C., 1962, Hydraulic Injection of Clastic Dikes in the Touchet Beds, Washington, Oregon, and Idaho:

Geological Society of Oregon Country Geology Newsletter,

v. 28, No. 10, p. 70.

Newcomb, R.C., 1965, Geology and Groundwater Resources of the Walla Walla River Basin, Washington-Oregon: Washington Division of Water Resources Water Supply Bulletin 21.

2.5-100

WNP -2 AMENDMENT NO. 18 August 1981 Newcomb, R.C., 196 9a, Geology o f the Deschutes-Umatilla

, Plateau: in Mineral and Water Resources of Oregon, Oregon Department of Geology and Mineral Industries Bulletin 64, in cooperation with U.S. Geological Survey, p. 60-66.

Newcomb, R.C., 1969b, Effect of Tectonic Structure on the Occurrence of Groundwater in the Basalt of the Columbia-River Group of The Dalles Area, Oregon and Washington: U.S.

Geological Survey Professional Paper 383-C.

Newcomb, R.C., 1970, Tectonic Structure of the Main Part of the Columbia River Group, Washington, Oregon, and Idaho:

U.S. Geological Survey Miscellaneous Investigations Map I-587.

Newcomb, R.C., Sceva, J.E., an Stromme, O., 1949, Ground-water Resources of Western Whatcom County, Washington: U.S. Geological Survey Open-File Report, 133 p.

Newcomb, R. C., Strand, J. R., and Frank, F. J., 1972, Geology and ground-water characteristics of the Hanford Reservation of the Atomic Energy Commission, Washington:

U.S. Geological Survey Professional Paper 717, 78 p.

Newton, V.C., Jr., and Van Atta, R.O., 1976, Geologyg Prospective Fold Structures, and Reservoir Characteristics in the Upper Nehalem River Basin, Oregon: Oregon Department of Geology and Mineral Industries Short Paper No. 5, p. 1-25.

Noble, J.B., and Wallace, E.F., 1966, Geology and Ground-water Resources of Thurston County, Washington:

Washington Division of Water Resources Water-Supply Bulletin 10, Vol. 2, 141 p.

Nolf, B., 1966, Structure and Stratigraphy of Part of the Northern Wallowa Mountains, Oregon: Ph.D. Dissertation, Princeton University, Princeton, N.J., 193 p.

Norbisrath, H., 1939, Geology of the Mt. Vernon Area: B.S.

Thesis, University of Washington, Seattle.

Northwest Energy Services Company, 1981, personal communication to Dr . G. A. Davis.

Oles, K.F., 1956, Geology and Petrology of the Crystalline Rocks of the Beckler River-Nason Ridge Area, Washington:

Ph.D. Dissertation, University o f Washington, Seattle.

2.5-101

AMENDMENT NO. 18 August 1981 Othberg, K., 1978, Reconnaissance Surf icial Geologic Map of Eastern Clallam County Washington: Washington Division of Geology and Earth Resources, unpublished map.

Packer, D. R., et al., 1979, Preliminary Magnetic Polarity Results of a Paleomagnetic Study of the Ringold Formation Pasco Basin, Washing ton: Amer ican Geophysical Union Transactions, V. 60, No. 46, p. 814.

Parker, R.L., and Calkins, J.A., 1964, Geology of the Curlew Quadrangle, Ferry County,'ashington: U.S. Geological Survey Bulletin 1169, 95 p., Scale 1:62,500.

Patton, P. C. and Baker, V. R., 1978, New Evidence for Pre-Wisconsin Flooding in the Channeled Scabland of Eastern Washington: Geology, V. 6, No. 9, p. 567.

Pearson, R.C., 1967, Geologic Map of the Bodie Mountain Quadrangle, Ferry and Okanogan Counties, Washington: U.S.

Geological Survey Geologic Quadrangle Map GQ-636.

Pearson, R.C., and Obradovich, J.D., 1977, Eocene Rocks in Northeast Washington Radiometric Ages and Correlation:

U.S. Geological Survey Bulletin 1433.

Pease, M.H., Jr., and Hoover, L. Jr., 1957, Geology of the Doty-Minot Peak Area, Washington: U.S. Geological Survey Oil and Gas Investigations Map OM-188.

Peck, D.L., 1961, Geologic Map of Oregon West of the 121st Meridian: U.S. Geological Survey Miscellaneous Investigations Map I-325, Scale 1:500,000.

Peck, D.L., Griggs, A.B., Schlicker, H.G., and others, 1964, Geology of the Central and Northern Parts of the Western Cascade Range in Oregon: U.S. Geological Survey Professional Paper 449, 56 p.

Pierce, R. L., Obradovich, J. D., and Friedman, I., 1976, Obsidian Hydration Dating and Correlation of Bull Lake and Pinedale Glaciations Near West Yellowstone, Montana:

Geological Society of America Bulletin, V. 87, No. 1,

p. 61-75.

Piper, A.M., 1942, Ground-water Resources of the Willamette Valley, Oregon: U.S . Geological Survey Water-Supply Paper 890, 194 p.

2.5-102

AMENDMENT NO. 18 August 1981 Plummer, C.C., 1964, Geology of the Mount Index Area of Washington State: Master' Thesis, University of Washington, Seattle.

Pongsapich, W., 1970, A Petrographic Reconnaissance of the Swauk, Chuckanut, and Roslyn Formations, Washington:

Master's Thesis, University of Washington, Seattle.

Porter, S. C., 1976, Stratigraphy and Distribution of Tephra from Glacier Peak (of 12,000 Years Ago) in the Northern Cascade Range, Washington, United States Geological Survey Open-File Report 76-186.

Powers, H. A. and Wilcox, R. E., 1964, Volcanic Ash from Mount Mazama (Crater Lake) and from Glacier Peak: Science, V. 144, No. 3624, p. 1334-1336.

Pratt, R.M., 1954, Geology of the Deception Pass Area, Chelan, King, and Kittitas Counties, Washington: Master' Thesis, University of Washington, Seattle.

Pratt, R.M., 1958, Geology of the Mount Stuart Area,,

Washington: Ph.D. Dissertation, University of Washington, Seattle.

Price, D., 1967a, Geology and Water Resources in the French Prairie Area, Northern Willamette Valley, Oregon: U.S.

Geological Survey Water-Supply Paper 1833, 98 p.

Price, D., 1967b, Ground-water in the Eola-Amity Hills Area, Northern Willamette Valley, Oregon: U.S. Geological Survey Water-Supply Paper 1847, 66 p.

Price, S. M., 1977, An Evaluation of Dike-Flow Correlations Indicated by Geochemistry, Chief Joseph Swarm, Columbia River Basalt: Ph.D. Dissertation, University of Idaho, Moscow, Idaho.

Puget Power and Light Company, 1974, Skagit Nuclear Power Project, Preliminary Safety Analysis Report: Docket Nos. STN-50-522/523, 9 Volumes.

Ragan, D.M., 1963, Emplacement of the Twin Sisters Dunite, Washington: Washington Division of Mines and Geology Reprint No. 8, p. 549-565.

Raisz, E., 1945, The Olympic-Wallowa Lineament: American Journal of Science, V. 243-A, p. 479-485.

2.5-103

WNP -2 AMENDMENT NO. 18 August 1981 Rau, W.W., 1966, Stratigraphy and Foraminifera of .the Satsop River Area, Southern Olympic Peninsula, Washington:

Washington Division of Mines and Geology Bulletin 53, 66 p.

Rau, W.W., 1967, Geology of the Wynoochee Valley Quadrangle, Grays Harbor County, Washington: Washington Division of Min'es and Geology Bulletin 56, 51 p.

Rau, W.W., 1975, Geologic Map of the Destruction Island and Taholah Quadrangles, Washington: Washington Division of Geology and Earth Resources Geologic Map GM-13.

Raymond, J. R. and Tillson, D. D., 1968, Evaluation of a Thick Basalt Sequence in South-Central Washington, Geophysical and Hydrological Exploration of Rattlesnake Hills Deep Stratigraphic Test Well: Battelle Pacific Northwest Laboratory, Report BNWL-776, Richland, Washington.

Read, P.B., 1976, Lardeau Map-area, British Columbia:

Canadian Geological Survey Paper 76-1A, p. 95-96.

Reber, S . J., Chevron Oil, personal communication to Dr. G.

A. Davis.

Reesor, J.E., 1957, Lardeau Map-area, East Half, British Columbia: Canadian Geological Survey Map 12-1957.

Reesor, J.E., 1958, Dewar Creek Map-area, British Columbia:

Canadian Geological Survey Memoir 292.

Reesor, J.E., 1965, Structural Evolution and Plutonism in Valhalla Gneiss Complex, British Columbia: Canadian Geological Survey Bulletin 129, 128 p.

Reesor, J.E., 1973, Geology of the Lardeau Map-area, East Half: Canadian Geological Survey Memoir 369, Map 1326 A.

Reesor, J.E., and Moore, J.M., Jr., 1971, Petrology and Structure of Thor-Odin Gneiss Dome, Shuswap Metamorphic Complex, British Columbia: Canadian Geological Survey Bulletin 195, 149 p.

Reidel, S. P., 1978a, Geology of the Saddle Mountains Between Sentinel Gap and 119o '31'ongitude:

RHO-BWI-LD-4, Rockwell Hanford Operations, Richland, Washington.

2.5-104

AMENDMENT NO. 18 August 1981 Reidel, S. P., 1978b, Stratigraphy and Petrogenesis of the Grande Ronde Basalt in the Lower Salmon and Adjacent Snake River Canyons: RHO-SA-62, Rockwell Hanford Operations, Richland, Washington.

Reidel, S. P., 1980, Oral presentation to Rockwell Hanford Operations.

Reidel, S. P., et al., 1980, Rate of Deformation in the Pasco Basin During the Miocene as Determined by Distribution of Columbia River Basalt Flows: Rockwell International, Rockwell.Hanford Operations, report prepared by United States Department of Energy, RHO-BWI-SA-29, 43 p.

Rice, H.M.A., 1941, Nelson Map-area, East Half, British Columbia: Canadian Geological Survey Memoir 228.

Rice, H.M.A., 1947, Geology and Mineral Deposits of the Princeton Map-area, British Columbia: Canadian Geological Survey Memoir 243, Map 888-A, 136 p.

Richmond, G. M., Fryxell, R., Neff, G. E., and Weis, P. L.,

1965, The Cordilleran Icesheet of the Northern Rocky Mountains and Related Quaternary History of the Columbia Plateau: In Wright, H. E., and Frey, D. G., eds., The Quaternary of the United States: Princeton University Press, Princeton, New Jersey, p. 231-242.

Riddihough, R. P. and Hyndman, R. D., 1976, Canada's Active Western Margin the Case for Subduction: Geoscience Canada, V. 3, No. 4, p. 269-278.

Rigby, J. G. and Othberg, K., 1979, Reconnaissance Surficial Geologic Mapping of the Late Cenozoic Sediments of the Columbia Basin, Washington: State of Washington, Department of Natural Resources, Open-File Report 79-3, Rinehart, C.D., 1976, Reconnaissance Geochemical Survey of Gully Sediments and Geologic Summary in Part of the Okanogan Range, Okanogan County, Washington: U.S. Geological Survey Open-File Report OF-76-680.

Rinehart, C.D., and Fox, K.F., Jr., 1972, Geology and Mineral Deposits of the Loomis Quadrangle, Okanogan County, Washington: Washington Division of Mines and Geology Bulletin 64, 124 p.

Rinehart, C.D., and Fox, K.F., Jr., 1976, Bedrock Geology of the Conconully Quadrangle, Okanogan County, Washington:

U.S. Geological Survey Bulletin 1402, Scale 1:62,500.

2. 5-105

WNP-2 AMENDMENT NO. 18 August 1981 Robbins, S.L., Burt, R.J., and Gregg, D.D., 1975, Gravity and Aeromagnetic Study of Part of the Yakima River Basin, Washington: U.S. Geological Survey Professional Paper 726-E.

Roberts, A.E., 1958, Geology and Coal Resources of the Toledo-Castle Rock District, Cowlitz and Lewis Counties, Washington: U.S. Geological Survey Bulletin 1062.

Robyn, T. L., 1977, Geology and Petrology of the Strawberry Volcanics, NE Oregon: University of Oregon, Ph.D.

dissertation, 197 p.

Robyn, T. L., Hoover, J. D., and Thayer, T. P., 1977, Geology and Geochronology of the Strawberry Volcanics, NE Oregon: Geological Society of America Abstracts with Programs, V. 9, No. 4, p. 488-489.

Rockwell, 1979, Geologic Studies of the Columbia Plateau, a Status Report: Rockwell Hanford Operations, Richland, Washington, Report RHO-BWI-ST-4 .

Roddick, J.A., 1965, Vancouver North, Coquitlam, and Pitt Lake Map-areas: Canadian Geological Survey Memoir 335.

Roddick, J. A., Wheeler, J. O., Gabrielse, H ~ g and Souther, J. G., 1967, Age and Nature of the Canadian Part of the Circum-Pacif ic Orogenic belt: Tectonophysics,'. 4, p.

319-337.

Rosenberg, E.A., 1961, Geology and Petrology of the Northern Wenatchee Ridge Area, Northern Cascades, Washington:

Master's Thesis, University of Washington, Seattle.

Rosenmeier, F. J., 1968, Stratigraphy and Structure of the Table Mountain - Mission Peak Area in the Wenatchee Mountains, Central Washington: Masters Thesis, University of Washington, Seattle, 44 p.

Ross, C.P., 1938, The Geology of Part of the Wallowa Mountains: Oregon Department of Geology and Mineral Industries Bulletin 3, 74 p.

Ross, C.P., Andrews, D.A., Witkind, I.J., 1955, Geologic Map of Montana: Montana Bureau of Mines and Geology.

Ross, M. E., 1978, Stratigraphy, Structure and Petrology of the Columbia River Basalt in a Portion of the Grande-Ronde-Blue Mountains of Oregon and Washington:

RHO-SA-58, Rockwell Hanford Operations, Richland, Washington.

2.5-106

AMENDMENT NO. 18 August 1981 Ross, S. H. and Savage, C. N., 1967, Idaho Earth Science; Geology, Fossils, Climate, Water and Soils: Idaho Bureau of Mines and Geology Earth Science Series No. 1, 271 p.

Savage, C.N., 1967, Geology and Mineral Resources of Bonner County: Idaho Bureau of Mines and Geology County Report 6, 131 p.

Sceva, J.E., 1950, Preliminary Report on the Ground-water Resources of Southwestern Skagit County, Washington: U.S.

Geological Survey Open-File Report, 40 p.

Schlicker, H.G., and Deacon, R.J., 1967, Engineering Geology of the Tualatin Valley Region, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 60, 103 p.

Schlicker, H.G., and Deacon, R.J., 1971, Engineering Geology of the La Grande Area, Union County, Oregon: Oregon Department of Geology and Mineral Industries.

Schlicker, H..G., Deacon, R.J., Beaulieu, J.D., and Olcott, G.W., 1972, Environmental Geology of the Coastal Region of Tillamook and Clatsop Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 74, 164 p.

Schmincke, H. U., 1967a, Flow Directions in Columbia River Basalt Flows and Paleocurrents of Interbedded Sedimentary Rocks, South-Central Washington: Geologische Rundschau, V.

56, p.'92.

Schmincke, H. U., 1967b, Stratigraphy and Petrography of Four Upper Yakima Basalt Flows in South-Central Washington:

Geological Society of America Bulletin, V. 78, No. 11, .

p. 138 5-1422.

Shannon & Wilson, Inc., 1972, Geology and Subsurface Investigation - Proposed Mid-Columbia Thermal Power Plant Sites - Morrow, Gilliam and Umatilla Counties, Oregon:

Private Report to Portland General Electric Company.

Shannon & Wilson, Inc., 1973a, Preliminary Geological Studies, Subsurface Investigation and Laboratory Testing for Pacific Power and Light Company Proposed Downing Nuclear Power Plant Site, Oregon: Report to Stone & Webster Engineering Company.

Shannon & Wilson, Inc., 1973b, Robison "Fault" Investi-gation Boardman Nuclear Project - Morrow County, Oregon:

Private Report to Portland General Electric Company.

2. 5-107

WNP -2 AMENDMENT NO. 18 August 1981 Shannon & Wilson, Inc., 1973c, Regional Geologic and Seismic Investigations, Boardman Nuclear Project: Private Report to Portland General Electric Company.

Shannon & Wilson, Inc., 1973d, Geologic Studies of Columbia River Basalt Structures and Age Deformation: Report to Portland General Electric Company, Portland, Oregon.

Shannon & Wilson, Inc., 1974a, Geotechnical Investigation for Central Plant Facilities, Pebble Springs Site Boardman Nuclear Project - Morrow County, Oregon: Private Report to Portland General Electric Company.

Shannon & Wilson, Inc., 1974b, Geotechnical Studies for Preliminary Evaluation of a Proposed Nuclear Power Plant Site at Lebanon, Oregon: Report to Woodward-Envicon, Inc.

for Pacific Power & Light Company.

Shannon & Wilson, Inc., 1975, Geologic Map of the Vicinity, Boardman Nuclear Project, Carty West Site:, Private Report to Portland General Electric Company, Scale 1:24,000.

Shannon & Wilson, Inc., 1976, Volcanic Hazard Study-Potential for Volcanic Ashfall, Pebble Springs Nuclear Plant Site, Gilliam County, Oregon: Report to Portland General Electric Company, Portland, Oregon.

Shannon & Wilson, Inc., 1977a, Geologic Studies of the Southern Continuation of the Straight Creek Fault, Snoqualmie Area, Washington: A report prepared for Washington Public Power Supply System.

Shannon & Wilson, Inc., 1977b, Geologic Reconnaissance of the Cle Elum-Wallula Lineament and Related Structures:

Report to Washington Public Power Supply System.

Shannon & Wilson, Inc., 1978, Geologic Reconnaissance of the Cle-Elum-Wallula Lineament and Related Structures: A report prepared for Washington Public Power Supply System, 33 p.

Shannon & Wilson, Inc., 1979a, Evaluation of Faulting in the Warm Springs Canyon Area, Southeast Washington: Report prepared for Washington Public Power Supply System, 18 p.

Shannon & Wilson, Inc., 1979b, Geologic Reconnaissance of the Wallula Gap, Washington - Blue Mountains - LaGrande, Oregon Region: Report prepared for Washington Public Power Supply System, 63 p.

2. 5-10 8

WNP-2 AMENDMENT NO. 18 August 1981 Shannon 6 Wilson, Inc., 1980, Geologic Evaluation of Selected Faults and Lineaments, Pasco and Walla Walla Basins-Washington: Report prepared for Washington Public Power Supply System, 25 p.

Shea, M.C., 1970, Geology and Highway Location Considerations in the Orofino-Kamiah - Nez Perce Area, Idaho: Master's Thesis, University of Idaho, Moscow.

Sheppard, R.A., 1964, Geologic Map of the Husum Quadrangle, Washington: U.S. Geological Survey Field Studies Map MF-280.

Simmons, G.C., Van Noy, R.M., and Zilka, N.T., 1974, Mineral Resources of the Cougar Lakes Mount Aix Study Area, Yakima and Lewis Counties, Washington: U.S. Geological Survey Open-File Report OF-74-243, 80 p.

Skehan, J. W., 1965, A Continental-Oceanic Crustal Boundary in the Pacific Northwest: Air Force Cambridge Research Laboratories, Report No. AFCRL-65-904, 52 p.

Slemmons, D. B , May 1977, State-of-the-Art for Assessing Earthquake Hazards in the United States, Report 6 - Faults and Earthquake Magnitude: United States Army Engineer Waterways Experiment Station. Miscellaneous Paper S-73-1, Report 6.

Smith, M., 1975, Preliminary Surficial Geologic Map of the Edmonds East and Edmonds West Quadrangles, Snohomish and King Counties, Washington: Washington Division of Geology and Earth Resources Geologic Map GM-14.

Smith, M., 1976, Preliminary Surficial Geologic map of the Mukilteo and Everett Quadrangles, Snohomish County, Washington: Washington Division of Geology and Earth Resources Geologic Map GM-20.

Smith, W.D., and Allen, J.E., 1941, Geology and Physiography of the Northern Wallowa Mountains, Oregon, with Petrography by L.W. Staples and Glaciation by W.R. Lowell: Oregon Department of Geology and Mineral Industries Bulletin 12, 64 p.

Snavely, P.D., Jr., Brown, R.D., Jr., Roberts, A.E., and Rau, W.W., 1958, Geology and Coal Resources of the Centralia-Chehalis District, Washington: U.S. Geological Survey Bulletin 1053, 159 p.

2. 5-109

AMENDMENT NO. 18 August 1981 Snyder, W. S., Dickinson, W. R., and Silberman, M. L., 1976, Tectonic Implications of Space-time Patterns of Cenozoic Magnetism in the, Western United States: Earth and Planetary Science Letters, V. 32, p.91-106.

Southwick, D. L., 1974, Geology of the Alpine-type Ultramafic Complex Near Mount Stuart, Washington:

Geological Society of America Bulletin, V. 85, No. 3, p.

391-402.

Staatz, M. H., 1964, Geology of the Bald Knob Quadrangle, Ferry and Okanogan Counties, Washington, U.S. Geological Survey Bulletin 1161-F, 78 p.

Staatz, M. H. et al., 1971, Mineral Resources of the Pasayten Wilderness Area, Washington: U.S. Geological Survey Bulletin 1325, 255 p.

Staatz, M.H. Tabor, R.W., Weis, P.L., and others, 1972, Geology and Mineral Resources of the Northern Part of the North Cascades National Park, Washington: U.S. Geological Survey Bulletin 1359, 132 p.

Strand, J. R. and Hough, J., 1952,'ge of the Ringold Formation: Northwest Science, V. 26, p. 152-154.

Strong, C.P., 1967, Geology of the PeE11-Doty Area, Washington: Master's Thesis, University of Washington, Seattle.

System, Science and Software, 1980, Determination of Three-Dimensional Structures of Eastern Washington from the Joint Inversion of Gravity and Earthquake Travel Time Data.

Report prepared for Weston Geophysical Corporation, 143 p.

Swanson, D. A., 1967, Yakima Basalt of the Tieton River area, South-Central Washington: Geological Society of America Bulletin, V. 78, No. 9, p. 1077-1110.

Swanson, D. A., 1978, Geologic Map of the Tieton River Area, Yakima County, South-Central Washington: United States Geological Survey Miscellaneous Field Studies Map MF-968, Scale 1:48,000.

Swanson, D. A. and Wright, T. L., 1976, Guide to Field Trip Between Pasco and Pullman, Washington Emphasizing Stratigraphy, Vent Areas, and Intercanyon-Flows of Yakima Basalt: Geological Society of America (Cordilleran Section) 72nd Annual Meeting, Field Guide No. l.

2.5-110

WNP -2 AMENDMENT NO. 18 August 1981 Swanson, D. A. and Wright, T. L., 1978, Bedrock Geology of the Northern Columbia Plateau and Adjacent Areas: In Baker, V. R. and Nummedal, D., eds., The Channeled Scabland, Washington NASA Planetary Geology Program, A Guide to the Geomorphology of the Columbia Basin, Washington, p. 37-57.

Swanson, D. A. and Wright, T., L., and Helz, R. T., 1975, Linear Vent Systems and Estimated Rates of Magma Production and Eruption for the Yakima Basalt on the Columbia Plateau:

American'Journal of Science V. 275, p. 877-905.

Swanson, D. A. and Wright, T. L., Camp, V. E., Gardner, J.

N., Helz, R. T., Price, S. M., and Ross, M. E., 1977, Reconnaissance Geologic Map of the Columbia River Basalt Group, Pullman and Walla Walla Quadrangles, Southeast Washington and Adjacent Idaho: United States Geological Survey Open-File Report 77-100.

Swanson, D. A., Anderson, J. L., Bentley, R. D., Camp, V.

E., Gardner, J. N., and Wright, T. L., 1979a, Reconnaissance Geologic Map of the Columbia River Basalt Group in Eastern Washington and Northern Idaho: United States Geological Survey Open-File Report 79-1363.

Swanson, D. A. and Wright, T.,L., Hooper, P. R., and Bentley, R. D., 1979b, Revisions in Stratigraphic Nomenclature of the Columbia River Basalt Group: United States Geological Survey Bulletin 1457-H, 59 p.

Tabor, R.W., 1961, Crystalline Geology of the Area South of Cascade Pass, Northern Cascades: Ph.D. Dissertation, University of Washington, Seattle.

Tabor, R.W., and Cady, W.M., 1978a, Geologic Map of the Olympic Peninsula, Washington: U.S. Geological Survey Miscellaneous Investigations Map I-994.

Tabor, R. W. and Cady, W. M., 1978b, The structure of the Olympic Mountains, Washington--Analysis of a Subduction Zone: U.S. Geological Survey Professional Paper 1033, 38 p.

Tabor, R.W., Engels, J.C., and Staatz, M.H., 1968, Quartz Diorite-Quartz Monzonite and Granitic Plutons of the Pasayten River Area, Washington Petrology, Age, and Emplacement: U.S. Geological Survey Professional Paper 600C, p. C45-C52.

2.5-111

WNP-2 AMENDMENT NO. '18 August 1981 Tabor, R. W., and Frizzell, V. A., 1979, Tertiary Movement along, the Southern Segment of the Straight Creek Fault and its Relation to the Olumpic Wallowa Linemant in the Central Cascades, Washington Geological Society of America, Abstracts'ith Programs, V. 11, No. 3, p. 131.

Tabor, R. W., Waitt, R. B., Frizzell, V. A., Jr., Swanson, D. A., and Byerly, G. R., 1977, Preliminary Map of the Wenatchee 1:100,000 Quadrangle, Washington: United States Geological Survey Open-File Report 77-531.

Tallman, A. M., Lillie, J. T., and Caggiano, J. A., 1978, Basalt Waste Isolation Program Annual Report:

RHO-BWI-78-100, Rockwell Hanford Operations, Richland, Washington.

Taubeneck, W.H., 1957, Geology of the Elkhorn Mountains, Northeastern Oregon, Bald Mountain Batholith: Geological Society of America Bulletin, Vol. 68, No. 2, p. 181-238.

Taubeneck, W.H., 1964, Cornucopia Stock, Wallowa Mountains, Northeastern Oregon Field Relationships: Geological Society of America Bulletin, Vol. 75,. No. 11, p. 1093-1115.

Taubeneck, W. H., 1970, Dikes of Columbia River Basalt in Northeastern Oregon, Western Idaho, and Southeastern Washington: In Proceedings of the Second Columbia River Basalt Symposium, Cheney, Washington, March 1969, Eastern Washington State College Press, Cheney, Washington, p. 73-96.

Taylor, T. L., 1976, The Basalt Stratigraphy and Structure of the Saddle Mountains of South-Central Washington:

Master's Thesis, Washington State University, Pullman, Washington.

Thayer, T. P., and Brown, C. E., 1966, Columbia River Group, in Changes in Stratigraphic Nomenclature by the U. S.

Geological Survey 1965: U. S. Geological Survey Bulletin 1244-A, p. A23-A25.

Thiruvathukal, J. V., 1970, Regional Gravity of Oregon:

Geological Society of America Bulletin, V. 81, No. 3, p.

725-738.

Tillson, D. D., 1970, Analysis of Crustal Changes in the Columbia Plateau Area from Comtemporary Triangulation and Leveling Measurements: Battelle Northwest Laboratory, Report No. BNWL-CC-2174.

2.5-112

WNP -2 AMENDMENT NO. 18 August 1981 Trimble, D.E., 1963, Geology of Portland, Oregon and Adjacent Areas: U.S. Geological Survey Bulletin 1119, 119 p.

United States Geological Survey, 1964, Mineral and Water Resources of Idaho, Idaho Bureau Mines and Geology, Special Report 1.

United States Geological Survey, 1966, Mineral and Water Resources of Washington: Washington Division of Mines and Geology, Report 9.

United States Geological Survey, 1969, Mineral and Water Resources of Oregon, Oregon Department of Geology and Mineral Industries, Bulletin 64.

Vallier, T.L., 1967, Geology of Part of the Snake River Canyon and Adjacent Areas in Northeastern Oregon and Western Idaho: Ph.D. Dissertation, Oregon State University, Corvallis, 267 p.

Vallier, T.L., and Hooper, P.R., 1976, Geologic Guide to the Hells Canyon, Snake River: Geological Society of America, Cordilleran Section, 72nd Annual Meeting, Field Guide No. 5.

Vance, J.A., 1977, The Stratigraphy and Structure of Orcas Island, San Juan Islands, in Geological Excursions in the Pacific Northwest (Guidebook), Geological Society of America, Annual Meeting, Seattle, Washington, 1977, Bellingham, Western Washington University Department of Geology, p. 170-203.

Vance, J.A., Whetten, J.T., and Eddy, P.A., 1975, Geologic Map of the San Juan Islands: in Russell, H., ed., Geology and Water Resources, of the San Juan Islands, San Juan County, Washington: Washington Department of Ecology, Water-Supply Bulletin 46.

Vance, J. A., et al., 1980, Tectonic Setting and Trace Element Geochemistry of Mesozoic Ophiolitic Rocks in Western Washington: American Journal of Science, V. 280, p. 359-388.

Van Diver, B.B., 1964, Petrology of the Metamorphic Rocks, Wenatchee Ridge Area, Central Northern Cascades, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Vine, J.D., 1969, Geology and Coal Resources of the Cumberland, Hobart, and Maple Valley Quadrangles, King County, Washington: U.S. Geological Survey Professional Paper 624.

2. 5-113

AMENDMENT NO. 18 August 1981 Wagner, H.C., 1967a, Preliminary Geologic Map of the South Bend Quadrangle, Pacific County, Washington: U.S.

Geological Survey Open-File Report OF-67-265, Scale 1:62,500.

Wagner, H.C., 1967b, Preliminary Geologic Map of the Raymond Quadrangle, Pacif ic County, Washington: U.S. Geological Survey Open-File Report OF-67-266, Scale 1:62,500.

Wagner, W.R., 1949, The Geology of the South Slope of the St. Joe Mountains, Shoshone County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 82, 48 p.

Waitt, R. B., 1977, oral communication to Rockwell Hanford Operations.

Waitt, Jr., R. B., 1977a, Missoula Flood Sans Okanogan Lobe:

Geological Society of America Abstracts with Programs, V. 9, No. 6, p. 770.

Waitt, Jr., R. B., 1977b, Guidebook to Quaternary Geology of the Columbia Wenatchee, Peshastin, and Upper Yakima Valleys, Nest-Central Washington: United States Geological Survey Open File Report 77-753, 25 p.

Waitt, Jr., R. B., 1979a, Late Cenozoic Deposits, Landforms, Stratigraphy, and Tectonism in Kittitas Valley, Washington:

United States Geological Survey Professional Paper 1127, 18 p.

Waitt, Jr., R. B., 1979b, Forty Late-Wisconsin Catastrophic Lake Missoula Backfloodings of Walla Walla and lower Yakima Valleys, Southern Washington, Geological Society of America Abstracts with Programs, V. 11, No. 3, p. 133.

Waldron, H.H ., Liesch, B.A., Mullineaux, D.R., and Crandell, D.R., 1962, Preliminary Geologic Map of Seattle and Vicinity, Washington: U.S. Geological Survey Miscellaneous Investigations Map I-354.

Walker, G.W., 1973, Reconnaissance Geologic Map of the Pendleton Quadrangle, Oregon and Washington: U.S.

Geologic'al Survey Miscellaneous Investigations Map I-727.

Walker, G.W., 1977, Geologic Map of Oregon East of the 121st Meridian: U.S. Geological Survey Miscellaneous Investigations Map I-902, Scale 1:500,000.

2.5-114

AMENDMENT NO. 18 August 1981 Walker, G.W., 1979, Reconnaissance Geologic Map of the Oregon Part of the Grangeville Quadrangle, Baker, Union, Umatilla, and Wallowa, Oregon: U.S. Geological Investigations Map I-1116. Survey'iscellaneous Wallace, W.K., 1976, Bedrock Geology of the Ross Lake Fault Zone in the Skymo Creek Area, North Cascades National Park, Washington: Master's Thesis, University of Washington, Seattle.

Walters, K.L., and Glancy, P.A., 1969, Reconnaissance of Geology and of Ground Water Occurrence in Whitman County, Washington: Washington Department of Water Resources Water-Supply Bulletin 26.

Walters, K.L., and Kimmel, G.E., 1968, Ground-water Occurrence and Stratigraphy of Unconsolidated Deposits, Central Pierce County, Washington: Washington Department of Water Resources Water-Supply Bulletin 22.

Warren, W.C., Norbisrath, H., and Grivetti, R.M., 1945, Geology of Northwestern Oregon, West of Willamette River and North of Latitude 45o15'- U.S. Geological Survey Oil and Gas Investigations Preliminary Map 42.

Washington Public Power Supply System, 1974, WNP-1/4 Preliminary Safety Analysis Report, Chapter 2.5, Washington Public Power Supply System, Richland, Washington.

Washington Public Power Supply System, 1977a, Tectonic Evolution of the Pacific Northwest Precambrian to Present: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix 2R C.

Washington Public Power Supply System, 1977b, Regional Geology: WNP 1/4 Preliminary Safety Analysis Report,

~

Amendment 23, Vol. 2A, Subappendix 2R D, Chapter 3.0.

Washington Public Power Supply System, 1977c, Fault Studies in the North Cascades: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix 2R D, Chapter 5.0.

Washington Public Power Supply System, 1977d, Western Columbia Plateau Margin Studies: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix 2R D, Chapter 6.0.

2.5-115

AMENDMENT NO. 18 August 1981 Washington Public Power Supply System, 1977e, Western Columbia Plateau Margin Studies, Wenatchee to Alameda Flat:

WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix 2R D, Chapter 8.0.

Washington Public Power Supply System, 1977f, Regional Geology: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R H, Chapter 3.0.

Washington Public Power Supply System, 1977g, Geophysical and Seismological Studies in the 1872 Earthquake Epicentral Region: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix 2R E.

Washington Public Power Supply System, 1977h, Geologic Studies of the Saddle Mountains - Manastash Ridge and Umtanum Ridge Structures: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R H, Chapter 8.0.

Washington Public Power Supply System, 1977i, Geologic Studies of the Wallula Gap Fault as Exposed in the Trench:

WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R H, Chapter 4.0.

Washington Public Power Supply System, 1977j, Western Columbia Plateau Margin Studies, Yakima River to Wenatchee:

WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2A, Subappendix '2R D, Chapter 7.0.

Washington Public Power Supply System, 1977k, Reconnaissance Mapping of the Rattlesnake-Wallula Lineament, Eastern Rattlesnake Hills, and Yakima Ridge: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R H, Chapter 7.0.

Washington Public Power Supply System, 19771, Imagery and Topographic Interpretation of Geologic Structures in Central Washington: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R F.

Washington Public Power Supply System, 1977m, Detailed Mapping of the Bend of the Rattlesnake Hills Structure: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol.

2B, Subappendix 2R H, Chapter 6.0.

Washington Public Power Supply System, 1977n, Geologic Studies - Wallula Gap to Badger Coulee: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R H, Chapter 5.0.

2.5-116

AMENDMENT NO. 18 August 1981 Washington Public Power Supply System, 1977o, Remote Sensing Analysis of the 1872 Earthquake Epicentral Region: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R G.

Washington Public Power Supply System, 1977p, Remote Sensing Analysis of the Columbia Plateau: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2R K.

Washington Public Power Supply System, 1977q, Geologic Evaluations of Structures in the Columbia Plateau: WNP 1/4 Preliminary Safety Analysis Report, Amendment 23, Vol. 2B, Subappendix 2RH.

Waters, A. C., 1955, Geomorphology of South-Central Washington, Illustrated by the Yakima East Quadrangle:

Geological Society of America Bulletin, V. 66, No. 6, p.

633-684.

Waters, A. C., 1961, Stratigraphic and Lithologic Variations in the Columbia River Basalt: American Journal of Science, V. 3.59, p. 581-611.

Waters, A.C., 1968, Reconnaissance Geologic Map of the Dufur Quadrangle, Hood River, 'Sherman and Wasco Counties, Oregon:

U.S. Geological Survey Miscellaneous Investigations Map I-556, Scale 1:125,000.

Watkins, N. D. and Baksi, A. K., 1974, Magnetostratigraphy and Oroclinal Folding of the Columbia River, Steens and Owyhee Basalts in Oregon, Washington and Idaho: American Journal of Science, V. 274, p. 148.

Weigle, J.M., and Foxworthy, B.L., 1962, Geology and Ground-water Resources of West-central Lewis County, Washington: Washington Division of Water Resources Water-Supply Bulletin 17, 248 p.

Weis, P.L., 1968, Geologic Map of the Greenacres Quadrangle, Washington and Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-734, Scale 1:62,500.

Weissenborn, A.E., and Weis, P.L., 1976, Geologic Map of the Mount Spokane Quadrangle Spokane County, Washington, and Kootenai and Bonner Counties, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-1336.

2. 5-117

WNP-2 AMENDMENT NO ~ 18 August 1981 Weston Geophysical Research, 1981, Compilation and Interpretation of Gravity in Washington, Oregon, and Adjacent Parts of British Columbia and Idaho: Prepared for Washington Public Power Supply System.

Wetherell, C.E., 1960, Geology of Part of the Southeastern Wallowa Mountains, Northeastern Oregon: Master's Thesis, Oregon State University, Coryallis.

Wheeler, J.O., and Read, P.B., 1973, Geology, Lardeau Map-area, West-half: Canadian Geological Survey Open-File Report OF-432.

Whetten, J. T., 1977,,Sedimentology and Structure of Part of the Chiwaukum Graben, Washington: Geological Society of America, Abstracts with Programs, V. 9, No. 4, p. 527.

Whetten, J. T. and Laravie, J. A., 1976, Preliminary Geologic Map of the Chiwaukum Graben, Washington: U.S.

Geological Survey Miscellaneous Field Studies Map MF-794, scale 1:24,000.

Wilkinson, W.D., Lowry, W.D., and Baldwin, E.M., 1946, Geology of the St. Helens Quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 31, 39 p.

Williams, I.A., 1916, The Columbia River Gorge, its Geologic History Interpreted From the Columbia River Highway: Oregon Bureau of Mines and Geology, Vol. 2, No. 3, 130 p.

Williams, R.K., 1952, Geology of Cape Disappointment Quadrangle and a Portion of Fort Columbia Quadrangle, Washington: Master's Thesis, University of Oregon, Eugene, 56 p.

Willis, C.L., 1950a,,Geology of the Northeastern Quarter of Chiwaukum Quadrangle, Washington: Ph.D. Dissertation, University of Washington, Seattle.

Willis, C. L., 1950b, The Chiwaukum Graben, a Major Structure of Central Washington: American Journal of Science, V. 251, No. 11, p. 789-797.

Wilcox~ R. E., 1978, personal communication to Shannon &

Wilson.

Wilcox, R. E. and Fisher, R. V., 1966, Geologic Map of the Monument Quadrangle, Grant County, Oregon: United States Geological Survey Quadrangle Map, 1:62,500.

2. 5-118

WNP-2 AMENDMENT NO. 18 August 1981 Wise, W.S., 1968, Geology of the Mount Hood Volcano, in Andesite Conference Guidebook: Oregon Department of Geology and Mineral Industries Bulletin 62, p. 81-98.

Wise, W.S., 1969, Geology and Petrology of the Mount Hood Area: A Study of High Cascade Volcanism: Geological Society of America Bulletin, v. 80, No. 6, p. 969-1006.

Wolfe, E.W., and McKee, E.H., 1968, Geology of the Grays River Quadrangle, Wahkiakum and Pacific Counties, Washington: Washington Division of Mines and Geology Map GM-4, Scale 1:62,500.

Woodsworth, G.J., 1977, Geology, Pemberton Map-area:

Canadian Geological Survey Open-Pile Map 482.

Woodward-Clyde Consultants, 1978, Paleomagnetic Measurements of the Ringold Formation and Loess Units Near Hanford, Washington and Evaluation of Age Dating Potential of Quaternary Deposits Near Hanford, Washington: Report to Washington Public Power Supply System, Incorporated, Richland, Washington.

Wunder, J.M., 1976, Preliminary Geologic Map of the Utsalady Quadrangle, Skagit and Snohomish Counties, Washington:

Washington Division of Geology and Earth Resources Open-File Map OF-76-10.

Yates, R.G., 1964, Geologic Map and Sections of the Deep Creek Area, Stevens and Pend Oreille Counties, Washington:

U.S. Geological Survey Miscellaneous Investigations Map I-412, Scale 1:31,680.

Yates, R.G.,1971, Geologic Map of the Northport Quadrangle, Washington: U.S . Geological Survey Miscellaneous Investigations Map I-603.

Yates, R. G., Becraft, G. E., Campbell, A. B., and pearson, R.C., 1966, Tectonic Framework of Northeastern Washington, Northern Idaho and Northwestern Montana: Canadian Institute of Mining and Metallurgy, Special Volume No. 8, p. 47-59.

Yeats, R.S., Erikson, E.H., Frost, B.R., Hammond, P.E., and Miller, R.B., 1977, Structure, Stratigraphy, Plutonism, and Volcanism of the Central Cascades, Washington: in Geological Excursions in the Pacific Northwest (Guidebook),

Geological Society of America, Annual meeting, Seattle, Washington, 1977: Bellingham, Western Washington University, Department of Geology, p. 265-308.

2.5-119

WNP -2 AMENDMENT NO. 18 August 1981 Young, R.E., 1966, Geology and Biostratigraphy of the Knappton Area, Washington: Master's Thesis, University of Washington, Seattle.

Zietz, I.,

and Swanson, Hearn, B. C., Higgins, M. W., Robinson, G. D.,

D. A., 1971, Interpretation of an Aeromagnetic Strip Across the Northwestern United States: Geological Society of America Bulletin, V. 82, No. 12, p. 3347-3372.

2.5-120

)

l II.

WNP -2 AMENDMENT NO. 18 August 1981 Main source for earthquake (see.Source Code References list) . Unless otherwise indicated, .

the data presented for the earthquake are taken from this source.

3.1 SOURCE CODE REFERENCES USED IN 'S 'OLUMN

~

Time periods of coverage as listed are inclusive Code Source BB Berg, J. W., and Baker, C. D., 1963, Oregon earthquakes, 1841-1958: Seismological Society of America Bulletin, v. 53, no. 1, p.95-108.

CA Canadian (Earth Physics Branch) epicenter data file.

Period of coverage: 1860-1978.

CR Crosson, R. S., 197 2, Small earthquakes, structure, and tectonics'f the Puget Sound region:

Seismological Society of America Bulletin, v. 62, no.

5, p'. 1133-1172.

Cl Smith, W. E. T., and Milne, W. G., 1969, Canadian earthquakes - 1964: Seismological Series, Dominion Observatory, Canadian Department of Energy, Mines, and Resources, Ottawa.

~ C2 Smith, W. E. T., and Milne, W. G., 1970, Canadian earthquakes - 1965: Seismological Series, Dominion Observatory, Canadian Department of Energy, Mines, and Resources, Ottawa.

C3 Stevens, A. E., Milne, W; G., Wetmiller, R. J., and Horner, R. B., 1972, Canadian earthquakes 1966:

Seismological Series of the Earth Physics Branch, No.

62, Canadian Department of Energy, Mines and Resources, Ottawa.

C4 Dominion Observatory (Victoria) data f ile, 1967-1968.

EH Coffman, J. L., and von Hake, C. A., (eds.), 1973, Earthquake history of the United States: National Oceanic and Atmospheric Administration, Environmental Data Service, Publication 41-1 (revised edition through 1970), 208 p.

. GS U.S. Geological Survey, Central Washington Data File.

2.5-5-4

WNP -2 AMENDMENT NO. 18 August 1981 Milne, W. G., 1956, Seismic activity in Canada west of the 113th meridian, 1841-1951; Canadian Department of Mines and Technical Surveys, Publication of the Dominion Observatory (Ottawa), v. 18, no. 7, p.

119-14 6.

N, NO National Oceanic and Atmospheric Administration (NOAA), Hypocenter data file. Period of Coverage:

1638 to September, 1980. Environmental Data Service, Boulder, Colorado.

NU Neumann, F., 1967, Crustal structure in the Puget Sound area: Extrait Des Publications Du Bureau Central Seismologique International, Series A, Travaux Sientif iques Fascicule 20, p. 153-167.

Rasmussen, N., 1967, Washington State earthquakes, 1840-1965: Seismological Society of America Bulletin, v. 57, no. 3, p. 463-476.

RU Rasmussen, N., 1973, Washington State earthquakes, 1966-1973: (unpublished) .

SD Racine, D., 1979, A s'eismicity study of the Pacific Northwest region of the United States, November 1961 August 1965- Report prepared by Teledyne-Geotech for the U.S. Nuclear Regulatory Commission, Washington, D.C., 43 p.

TA Townley, S. D., and Allen, M. W., 1939, Descriptive catalog of earthquakes of the Pacific Coast of the United States, 1769-1928: Seismological Society of America Bulletin, v. 29, no. 1, p. 1-297.

TS Tobin, D. G., and Sykes,. L. R., 1978, Seismicity and tectonics of the northeast Pacific Ocean: Journal of Geophysical Research, v. 73, no. 12, p. 3821-38.45.

UE United States Earthquakes; Annual Publication of the U.S. Department of Commerce, 1928-present: by U.S.

Coast and Geodetic Survey, Seismological Society of America, NOAA or Earthquake Data Service.

UN Underwood, R., 1972, Studies of Victorian seismicity: Royal Society of Victoria Proceedings, vs 2g po 27 47 of Washington.

'niversity Periods of Coverage.

Western Washington (west of, longitude 122oW),

2.5-5-5

WNP -2 AMENDMENT NO. 18 August 1981 18 June 1970-1974, 1978; Eastern Washington (east of longitude 122oW); 25 March 1969-1979, 18 June-December, 1980.

Woodward-Clyde Consulants, 1978, 1872 earthquake studies, WPPSS nuclear project Nos. 1 and 4:

micro-earthquake study; Report prepared for the Washington Public Power Supply System, Richland, Washington, 32 p.

WG Weston Geophysical Research, Inc. 1973, Hanford, Washington, Preliminary Safety Analysis Report for U.S. Atomic Safety Commission. Wes ton Geophysical

~

Research, Inc., British Columbia,May-October, 1978.

Vance, D. J., 1971, Relocation of some seismic events in the Puget Sound area, 1951-1968: M.S. thesis, University of Washington, Seattle, Washington.

4.1 MAGNITUDE CODES USED IN "SM"'OLUMN Code Ex lanation MB Body wave magnitude MC University of Washington coda-length magnitude ML Local Richter magnitude MN Nuttli magnitude MS Surface wave magnitude Nl Magnitude reported by NOAA. See "Location and Comments" column for identification of magnitude source and scale.

5.1 NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION (NOAA)

HYPOCENTER DATA FILE FORMAT EXPLANATION 5.1.1 REPORTING OF FRACTIONAL EARTHQUAKE MAGNITUDES Many early magnitudes in the NOAA data file were originally reported as fractions and have been converted to decimal notations. As is the case with coordinate locations, these decimal notations do not imply accuracy to the nearest hundredth of a unit. For example, 2.5-5-6

AMENDMENT NO. 18 August 1981 Magnitude originally re orted as A ears as 6-6 1/4 6. 13 6 1/4 6.25 6 1/4 - 6 1/2 6.38 6 1/2 6.50 61/6-63/4 6.63 6 3/4 6.75 6 3/4 7 6.88 For any other range, the median value is listed.

5.1.2 EXPLANATION OF NOAA CODES USED IN "Q" COLUMN Code Ex lanation

• Assigned to solutions for which poor azimuth, depth control, and other factors contribute to a less reliable solution.

A Parameters of. explosion supplied by U.S. Atomic Energy Commission (AEC) .

B Parameters of epicenter supplied by University of California, Berkeley, California.

D Authority for time and coordinates: Department of Energy, Mines, and Resources, Canada.

E Some or all parameters of explosion (controlled or accidental) supplied by any group or individual other than AEC.

G Parameters of epicenter supplied by the U.S. Geological Survey for any area other than Island of Hawaii.

M Hypocenter based on macroseismic information.

S An NEIS solution based on use of dense local networks, a local crustal model, or other methods not routinely applied by NEIS (USGS) .

W Parameters of epicenter supplied by University of Washington, Seattle, Washington.

Z Noninstrumental.

5.1.3 EXPLANATION OF NOAA CODES USED IN "LOCATION AND COMMENTS" COLUMN 2.5-5-7

AMENDMENT NO. 18 August 1981 Code Ex lanation NOAA depth control designation indicating hypocenter depth assigned for shallow focus (not computed) .

BC IS Bureau Central International De Seismologie.

BRK University of California, Berkeley, California, Seismograph Station (Haviland) .

CGS, CGS-B U.S. Coast and Geodetic Survey: Number following CGS indicates bi-weekly preliminary determination of epicenter sequence number.

CGSPDE U.S. Coast and Geodetic Survey: Preliminary determination of epicenter.

D NOAA depth control designation indicating depth based on two or more reported pP's identified as such.

ERL, ERL4 Environmental Research Laboratories: Number following ERL indicates bi-weekly preliminary determination of epicenter sequence number.

NOAA depth control designation indicating depth restrained by geophysicist.

GOL Colorado School of Mines Seismograph Station, Golden, Colorado.

GUTE Gutenberg and Richter (1954) .

LG Variation of Nuttli magnitude using LG phase.

N NOAA depth control designation indicating normal depth (33 km) when data are not sufficient to calculate shallow focal depth.

NOS, NOSS National Ocean Survey: Number following NOS indicates bi-weekly .preliminary determination of epicenter sequence number.

NU Nuttli magnitude.

OSU Oregon State University.

PAL Lamont-Doherty Geological Observatory Seismograph Station, Palisades, New York.

2.5-5-8

WNP -2 AMENDMENT NO. 18 August 1981 PAS g PA California Institute of Technology, Pasadena, California, Seismograph Station.

PDE U.S. Coast and Geodetic Survey: Preliminary determination of epicenter.

USE United States Earthquakes, Annual Publication of the U.S. Department of Commerce, 1928-present, by the CGGS, BSSA, NOAA, or EDS.

5. 1.4 ISOSEISMAL MAP PUBLISHER CODES, Code Ex lanation USE United States Earthquakes EQN Earthquake Notes PDE Preliminary Determination of Epicenters 6.1 UNITED STATES GEOLOGICAL SURVEY CENTRAL WASHINGTON DATA FILE CODES EXPLANATION 6.1.1 HYPOCENTER SOLUTION QUALITY USED IN "Q" COLUMN This measure is intended to indicate the general reliability of a hypocentral solution.

~oaalit Focal De th A Excellent Good B Good Fair C Fair Poor-D Poor Poor The quality is based on both the nature of the station distribution with respect to the earthquake and the statistical measure of the solution.

6.1.2 EXPLANATION OF ABBREVIATIONS USED IN "LOCATION AND COMMENTS" COLUMN Abbreviation Ex lanation DMIN Epicentral distance in kilometers to the nearest station; rounded to the nearest integer.

I GAP Largest azimuthal separation in degrees between stations.

2.5-5-9

AMENDMENT NO. 18 August 1981 HSE Horizontal standard error of the epicenter in Kilometers: HSE = SQRT [(SDX**2) + (SDY**2)], where SDX and SDY are the standard errors in longitude nd latitude, respectively, of the epicenter. When NSTN is less than or equal to four, HSE cannot be computed and is left blank.

NSTN Number of stations used in locating the earthquake.

R (In 'SM'olumn) indicates the Richter magnitude calculated from Wood-Anderson seismograph records.

RMS Root-mean-square error of the time residuals: RMS-SQRT [(R(I) **2, I=1,NSTN) / NSTN]; where R (I) is the observed seismic-wave arrival time minus the computed time at the I-th station.

ZSE Standard error of the depth in kilometers.

• (At end of statistical data line) indicates earthquake.was also reported in Bulletin of the Seismograph Stations of the University of,California, Ber keley.

7. 1 CANADIAN (EARTH PHYSICS BRANCH) EPICENTER DATA EXPLANATION The Canadian epicenter data denoted by the source code CA comes from the Earth Physics Branch, Division of Seismology and Geothermal Studies of the Department of Energy, Mines and Resources, Ottawa, Canada.

7.1.1 ORIGINAL DATA SOURCES AND CODES The following are the codes used in the notation ORIGINAL DATA SOURCE=xxx in the "Location and Comments" column.

Code Ex lanation EPB Earth Physics Branch of Dept. of Energy, Mines and Resources, Canada. The great bulk of the EPB data has been published in the Seismological Series of the Earth Physics Branch by the Seismological Service of Canada, Dept. of Energy, Mines and Resources, in the Seismological Series of the Dominion Observatories, Dept. of Mines and Technical surveys, or in the Publications of the Dominion Observatory, Dept. of 2.5-5-10

AMENDMENT NO. 18 Augu'st 1981 Mines and Technical Surveys, by various authors. The above are all one series, characterized by orange covers and a history of name changes.

PDE Preliminary Determination of Epicenters, available through National Earthquake Information Service, U.S.A.

UBC University British Columbia, Canada ISC International Seismological Center The data represented here, as provided by EPB, attempts to be faithful to the published material. The source "EPB" is given for all events prior to 1968, despite the fact that not all these epicenters or their parameters can be found in Canadian publications. Some are from ISS (International Seismological .Summary), USCGS (United States Coast and Geodetic Survey), Gutenberg an Richter, "Seismicity of the Earth and Associated Phenomena" (Princeton University Press, 1954), and from other references.

7.1.2 INTENSITY MAGNITUDE CONVERSION In the data supplied by EPB, all events before 1899 and some thereafter are assigned magnitudes calculated from their maximum intensities according to the formula M = (2/3) I + 1 For the period before 1899, in order to depict the parameters of events as accurately as possible, magnitudes are reconverted back to intensities in the EQDB catalog according to the formula I = (3/2) (M - 1)

However, since there is no way to determine whether a given event in 1899 or later was assigned a calculated magnitude by EPB, no reconversion is done for 1899 and later; hence some events in this period may have magnitudes assigned to them despite the fact that there was no original report of magnitude. Such magnitudes are always reported as local magnitudes.

2.5-5-11

~ ' I g

" ~ V ~ .ii ~~

'I i

i << ' "S W '>> >~>li i 4> i~iie.>i Li PAGE 1

~ +~ I ii CAT. DATE fIHE(GHT)

DAY-HO-YEAR HR-HIH-SEC LAT LOHG SL ItffEH NAG SH H DIS 0 S LOCATION AND COHHEHTS tlO. (H>(> . (KH>(KH>

1 3 DEC 1841 LT 45.600N 1~>.700M u V .' VANCOUVER> MASH ~

2 2 APR 1859 10 30 00.0 47.045N 122.090M M V R OLYHPIA 2f. AUG 106" 05r00-.00.0 48.500N 123.500M VI 2 HO REPORTED FELT IHFORI(ATIOH ORIGIHAL DATA SOURCE EQH tlOH-IN S'fRUHE>ITAL Cl 4 24 ttOV 1066 18 10-"00.0 45.595H 121I17W u IV R TtlE DALLES, OI'E.

5 14 DEC 1072 21 "40 30LT 49. 167H 121.000M IX M FELT AS FAR SOUT>l AS EUC>Et(Eg OREGON AHD AS FAR HORTH AS SODA CREEK> B.C.

IH THE CfRIDOO ~

HA>lY AFTERSN)CKS FELT OVER MXDE AREA Otl DEC 14-16 AHD MITHIH TIK FOLLOMIHG TMO MEEKS. AFTERSl-IOCKS Fd3'ORTED FOR tIOI E THAN SIX MEEKS FOI LOMIt!G HAIN SN)CK. FULL DISCUSSIOH IH MNP-1/4 PSARs A>1EttD>IE>IT 23t APf'EHDICES 2R> A NID Bi 6 ~ 19 OCT 1073 22 00 00.0 47.597H 122.330M u XV R SEA'I Ill 22 HOV 10TJ 21 00 00IO 42.000H 124,000M 5. 601& CA ORIGINAL DATA SON.CE =- EPB 17 DEC 18T3 LT 47.045H 1M.090M M IV R OLYHPIAg DATE OUESTIOHABLE 12 OCT 1077 09 LT 45. 700N 121 . 900M M1 VII BD CASCADES OREG (ASSU>IE TO BE CASCADE NTS BD HAP) t' 10 12 OCT 1877 21 Q 00.0 45.550H 1%.600M M III BB PORILfiHD~ GREC')tl g 30 HOV 1077 04i LT 45.550H 1>2.600M Ml III DB POR'fLANDr OREG 10 HAR 1070 14 30 00.0 47.237H 122>.433M M IXI R TACOHA 45.b~~H I'+~.620M M IV R PORTLAHD ORE. HOtffH AHD DAY NOT SPECIFIED 14 10 DEC 1880 13-00 00.0 47.650H 17&.525M M IV R DAIHBRIDGE IS.

0 15 13 DEC 1000 04=40-"00.0 ~

47.500N 122.500u u VII R PUGET SOUND 16 15 DEC 1080 02:00-00.0 47.f~oN 1~.525M u IXX R BAINBRIDGE IS i 17 21 DEC 1800 07 16 00.0 47.650N 1>'>.525M M IV R BAIt0)RIDGE IS.

18 30 DEC 1800 07"25"00.0 47 650N

~ 1~.5~+ M IXI R BAItiTRXDGE IS.

- 19 1/ JAH XP&1 07 00 00,0 47.650H 1>>.525M M III R BAINBRIDGE IS.

20 31 JAI'I 1001 05 45.00,0 47 650H 1~.525M

~ M IIX R DAIlds3RIDGE IS q, ~

15 HAR 1001 06"30 00 ' 47.650H 122.525M M III R BAXHBRIDGE IS.

MOODMARD-CLYDE Cet(SULTAHTS 23 APR 81

~ ii ~a W

4 21 15 HAR 1001 06 30(00a0 47.650H 1Ã.525M M III j'3 WOODMARD-CLYDE COHSIJLTAHTS APR 81~ I I PAGE 2 I CAT. DATE TIHE(GHT) LAT LONG SL Itf)EN HAG SH H DIS 0 S LOCATION AtlD COHHEHTS I HO. DAY-HO-YEAR )IR-HIH-M~C (HH) (KH) (KH) 22 1 HAY 1002 00 2S LT 45.550H 122.600IJ Ml III BB PORTLAND'REG JIJH 1003 47.237tl 122 '33LJ IJ III R TACO))he DATE QUESTIONABLE P4 4 JAH 1004 04 40 00,0 45.535H 122.620LJ LJ IV R PORTLAND ORE.

22 SEP 1004 06 00 00.0 47.237H 122.433M M III R TACOHhy SEVERAL LIG)ff SHOCKS WERE FELT 26 27 JUtl 1805 13 26 00,0 47:045H 122.090M M IV R OLYHPIA 27 9 OCT 1005 16 00"00.0 47.000H 123,000M V Z )IO RATED FELT 1))FOR)IATIOH ORIGI)IAL DATA SOURCE. ~ EQH NOH-IN'UHE)ITAL 20 10 OCT 1005 09"00:00i0 45.550N 122 600M Lll III BB PORTLAHD OREG) THfKE VERY LIG)ff .SHOCKS IHTE)ISITY REPORTED AS II-III It(IFJISITY SOURCEi-DB 29 9 DEC 1005 06 40=00.0 47.500H 122.500M Z HO REPORTED FELT INFlNJVITIOH ORIGINAL Dh'fh SOURCE EQH HOH-IHS'fRUI'IEHTAL 30 19 DEC 1005 08 30 00.0 40.300H 124.750M LI III R TATOOSH IS 31 0 HAR 1090 LT 47.045H 122o090M M III R OLY)LPIA p YEAR QUEST IOHABLE 32 16 HJ'R 1090 04 00-00.0 47.210H 120.990M M III R RO-LYH, YEAR QUE"TIOHABLE 33 . 29 HAfi 1090 22"30"00.0 47.210H 120.990W M III R ROSLYH ~ YEAR QUESTIONABLE 34 SEP 1091 10"30 LT 47.100H 110 400M Ml IV

~ WG RITZVILLE,MASH.

35 17 SEP 1091 04=30-00.0 44 '940N 121.033M

~ LJ IV BB SALEH ~ OREG 36 19 SEP 1891 09" LT 47.597H 122.330M M 'V MG SEATTLE'JASHIHGTOH 37 22 SEP 1091 11 40 00.0 40.000H 1>M.500M 2 HO REPORTED FELT IHFORHATIOH ORIGINAL DATA SOURCE ~ EQH NO)i'-IHBfRUHEHTAL 9 30 29 HOV 1091 23 21 00a0 40.115H l>M.443M M VII R PORT ANGELES FELT OVER 4,000 SQ. HI ~

39 4 FED 1092 04 30-00.0 45.535H 122.620LJ VI R PORTLAND')i<f FELT OVER 10t000 SQ HI AREA 40 29 FED 1092 10-4S-00.0 45.595H 121 173M

~ W IV R THE DALLESr ORE ~

O 41 5 HAR 1092 LT 46.600H 120.500M M VI LIG NORTH YAKIHAt IJASHo TIHE REPORTED AS LT 9 42 17 APR 1892 22:50:00.0 47 '00H 123e000W VI 7 HO REPORTED FELT It)FORHATIOH ORIGINAL DATA SOURCE ~ EQH IJOODWARD-CLYDE COHSULTANTS 23 APR 81 9 ~ 0 ~ 1

$ is.v 9 ~ ~

ie 42 17 APR 1892 22 50 00.0 47.000H 123.000M VI Z HD REPORTED FELT IHFORHATION ~ ~

ORIGINAL DATA SOURCE EQH le e MOODMARD-CLYDF CONSULTANTS 23 APR 81 Y-PAGE 3 CAT. DATE fIHE(GHT) - LAT LO)IG SL XtfrEN tIAG SH N DXS O S LOCAT'ION AHD COHHEHTS NO. DAY-HO-YEAR IIRWIH"SEC (HH) = (KH)(KH)

HON-IHSTRUHEtlTAL 43 5 HAR 1093 45.900H 119.333M M VX MG UHATILLAy DREe TItlE REPORTED AS LT 44 14 AUG 1893 13"07"-00.0 46.2+~.367M M IV R il HILES I'I.M, OF HT. ST. HEX.ENS 45 15 APR 1094 46.998N 120.540M M III MG ELLEHSBURG, MASH.

1'IHE REPORTED AS LT e

46 23 FED 1095 12 47 00 ' 46.50QH 122.400M V Z tlO REPORTED FELT IHFORHATION (v ORIGINAL DATA SOURCE EQH e NON-ItISTRUHE)ITAL t0 . 47 16 APR 1095 08 02-0Q.Q 4e0 ~ QQQH 123.000M V Z HO REPORTED FELT XHFOP)IATION ORIGINAL DATA SOURCE v EQH HOH-IHS I RUHEtffAL (I) 40 ' JAH 1896 06 15 QQ.Q 40.500H I'M.GQQM VI . Z HO REPORTED DfeJ)AGE ORIGXHAL DATA SOURCE ~ EQH 6 NOH-IHS'IRUHEtffAL 7 FED 1096 05 55"-00.0 40.30QH 124e300M VI Z HO REPORlED FELT IHFORHATXOH C0 ORXGIHAL DATA SOURCE = EQH NOIel-IHPIRUHEHTAL 50 2 APR 1096 11:17-00.0 45 '00H 123e300M VI Z HO REPOffl'ED FELT IHFOR)IATIOII ORIGINAL DATA SOURCE ~ EQH HOtl-IN5'I'RUYiEHTAL 51 26 JAH 1897 22 45 00.0 44.641H 124.050M M IV BD HEMPORT ~ DRED 52 27 SEP 109/ 09 30 00.0 47.045H I'~>.090M M IV R OLYHPIht FELT 53 / DEC 10/7 04 30":00,0 45.520H 123. 100M M IXI BB FORREST GfeOVEg OREG 15 DEC 1897. LT. 47.800tl 120.000M V SEVERE SIIOCKt LAKESIDEr MA 55 . 22 FEB 1090 02 25-00;0 45.535H 122.620M M IV PORTLAND'RE ~

22 FED 1098 09"15 00.0 45,535H I'+>.620M M III R PORTLAHDr OREs 5/ 1" JIXH 1902 04 "00:00.0 44.641t( 124.050M M IV DD HEMPORT ~ OfeEG 50 15 JUH 1902 09 00.00.0 el4.641tt 124.050M M XV BD tKN'-OR'ft OREG 59 10 DEC 1902 15 00 00.0 44.640H 119.143M M III BD FOX VALLEYS OREGX2 DISTINCT SHOCKS 9

60 '4 HAR 1903 02 15-00e0 47.700H 1~.200M, V Z Hn REPORTED FELT INFORtIATION ORIGINAL DATA SOURCE ~ EQH tIOI~XtI8(RUHENTAI MOODMARD-CLYDE COHSULTANTS . 23 APR 81 3 i~ 6 =~

e,e

+4:

0

'WOODMARD-CLYDE CONSULTAtffs 23 APR v

p}

PAGE 4 .

CAT. DhfE TIHE(GHT) I.hT LONG SL Itll'EN Hhs SH H DIS O 8 LOCATION hND COHHENTS Ho i DAY-Ho-YCAR HRH<IH-SEC (HH) (KH)(KH) 61 11 SEP 1903 15 44-LT 47.500H 122.450M W IV MG SEATTLE-TACOHAy WAS)(i 62 9 DEC 1'903 LT . 47 217H 122.000M

~ M 'V MG Et(Ut((:LAWr MASH.

TIHE REPORTED AS LT 17 HAR 1904 04 20 QQ.Q 48i500H 123i300M R FELT OVER 20g000 SO. HIi 64 16 JUH 1904 18 25-0Q.Q 45.535H IZ.620M u IV R PORTLAND'RE ~

65 16 JUH 1904 19-40 00.0 45.53%( 122ib20W M IV R PORTLAND'RE.

66 16 JUH 1904 22-00:00.0 45.535H 122.620M M IV R PORTLAIIDg ORE. TWO OT}KR SHOCKS WERE FEL.T OH JUNE 16 ~

8 67 18 OCT 1905 23 LT 47.800H 120iQQQM M V WG CHELhH Mhsll. SEVERAL SHOCKS ~

60 11 NOV 1905 21 26 00.0 42.900N 114.500M VII Z HO REPORTED Dht(AGE 6 ORIGItIAL DATA SOURCE ~ EOH t(O)I-INSTRUI IEtITAL e 69 2 JAN 1906 LT 48.700N 117.800M Ml VI MG STEmWS CO.,MAGI(. 7,000 Sa HI AREA; 70 19 APR 1906 09-30-00 ' 42.700N 120.600M 4.30HL Z t(o REPORlED FELT IHFORHATIOH O ORIGINAL DATA SOURCE ~ EOH HAGHITUDE AUTHO(3ITY i EPD HOH-INSTRUHEHTAL 71 23 APR 19Qb 19 00 00.0 42i4iQQN 123i400M 4i30HL CA ORIGIt(AL Dnfh SOURCE c EPD 9 72 1 Jml 1'906 12t,~.00,0 47i597tl 122i330M M V R cEATTLE Q

73 ' SEP 1906 LT 44.779H 117i833M Ll III BB BAKERp OREG TIHE REPORTED AS LT 74 2 ti'OV 1906 01 "49 00.0 4i8.500H 117i'900M Z Ho REPORTED FELT IHForit(ATIOH ORIGINAL DATA SOURCE ~ EOH t(ON-IHS'NUt(EHTAL 75 18 FEB 1907 12-20"-LT 47.842tl 120.023M M V MG CHFI hHp LIASH.

76 27 HAY 1907 12-00-00.0 45.535H 1~.620M W III R PORTLAND>> DRE.

77 28 JUL 1907 10-20 00.0 48.450H 123.350M Ll V R PORT TOW(~~Et(D-VICTORIAN Bic.

78 11 JAN 1909 23.-49:00.0 48.700H 122.800M VIT b. 00 CA RE ORTED reHAGE ORIGIHAL DATA SOLIRCE = EOH Holt-IHSTRUHEtlTAL 79 21 JAH 1'909 05 LT 47.800H 120.000LI M IV MG Ct(ELA)I~ MASH.

80 24 HAY 1909 22 L'f 47,730H 120.360M LI V WG CHELhtl LEAVEt(MORTII y WASH FELT AT 10 00 OR 10 30 PH LT. )

~

i MOODMARD-CLYDE COHQJLTAHTS 23 APR 81

! 9

WOODMARD-a YDE CONun.TA(iVS 23 APR ~ ~,

1 PAGE 5 CAT. DATE TINE(GHT) LAT LONG SL INTEN HAG SH H DIS O S LOCATIOH AHD COILHEHTS NO. DAY-ILO-YEAR 'IN-HIH-SEC (ILIL) (IQL) (IQL) 01 31 DEC 1909 00 23 00 0~ 45<%5H 122<620M M IV PORTLANDr ORE.

02 15 FEB 1910 24"00=00.0 45.550H 122.600M LJ IV BB PORTLAND< OREG 83 5 AUG 1910 01 31 36.0 42 ~ QQQH 127.000M 6.00H' HO ORIGINAL DATA SOIIRCE Gur HAGHITUDE(FRACTIOHAL HOTATIOH AVE) 6. 00 AUTHORITY-PAS 04 5 JUL 1911 00."00:00 0

~ 46.990H 120.540M W V R ELLENSBURG 05 29 SEP 1911 02 39 00.0 40.000H 1K?.700M VI 2 HO RFPORTED FELT IHFORHATIOH ORIGINAL DATA SOURCE <= EQH NOH-IHSTRUl'IEHTAL 06 29 JUL 1913 16"15 00 0~ 47 ~ QQQN 122<000M Z HO REPORTE() FEL'f IHFORHA'fIOH ORIGIHN DATA SOURCE r< EOH NOH-INSl RUILEHTAL NO(

07 14 OCT,1913 23t00 00.0 45.700H 117.100M V Z HO REPORTED FELT IHFORHATIOH ORIGOIAL L)ATA SOURCE EOH NOH- I NSl'RUNEHTAL 80 "

25 DEC 1913 10" 45 QQ.Q 47.700H 1K?.500M R FELT OVER Gr000 SO. HI ~

09 . 22 HAR 1914 14 30 00.0 45 535H 122.620M

~ M IV R PORTLAND r ORE.

'90 5 SEP 1914 09 35 00.0 47.000H 1>M,QQQLJ V Z HO RFPORlED FELT IHFORHATIOH ORIGIHAL DATA SOLIRCE ~ EOH

(-IHS fRUILEHTAL 5 SEP 1914 10!00 QQ ~ 0 45.550H 122.600(J W III BD PORTLANDr OREG 92 10 JAH 1915 00"-00-00.0 45.500H 110 ~ QQQW R2 III R SLJ($ HERVILLEr ORE.

93 26 JAN 1915 00."55 00.0 46.750H 121,010M M IV R LOHSHIRE 94 11 FED 1915 03-07 00.0 47<500H 124.000LI M III R OUEETS RIVER 1 HAR 1'915 10 00'QQ.Q 47.030H 120.020M M III R LAKESIDE 96 1 HAR 1915 IGR03 00.0 47 030H 120.020M III R LAKESIDE

'5

~ LJ 97 HAR 1'915 05 10 00 0~ 47<030H 120 020M

~ M IV R LAKESI1)E r 5 ILAR 1915 Q5 30 00.0 47,030H 120.020M M IV R LAKESIDE 99 10 HAY 19'15 45.535H 122.620M M V MG PORTLAHDr ORE<

,~

Tl(LE REPORTED AS LT r'

~ ~

100 10 JUL 1915 ~

20 54:00.0 47.030H 120.020(J M IV R LAKESIDE r

'1 r B

, 101,: 10 AUG 1915 . 14 05 QQ.Q 48.500H 121 400M

~ V R FELT OVER 30 000 SO. ILI ~

MOODMAk?D-CLYDE CONSULTANTS 23 APR 81

<r t

PA(IE 6

0 MOODMARD-CLYDE CONSULTANTS 23 APR ~r'- I\ ~

A t

'I PAGE 6 CAT. DATE TI)IE(Gtrf) LAT . LONG SL INTER NAG SN kl DIS O 8 L 0 C A.T.I 0 H A H D 'C 0 N N E H T 8 HO. DAY-NO-YEAR tm-Nltl-~~ (NN) (KN)(KN) 102 18 HOV 1915 23 42=00.0 45.862H 1>~,671M M V R LA CENTER 103 10 DEC 1915 20 45 00.0 47.672H 117 405M

~ M IV R SPOKANE 104 2 JAH 1916 00-52" 00.0 47a300R 1~.300M V Z NO REPORTED FELT IRFOR)M)TION ORIGINAL DATA SOURCE = EGH HOR-IHSTRUNEHTAL 105 4 JAN 1916 18-.40=00 0

~ 44.641R 124.050M M IV BD REMPORTy OREG I 2 SIIOCKS ltITEtISITY SOURCE~BB t

106 22 FEB 1916 ll 45=00.0 48.800N 122.600M V Z RO REI orna)

ORIGINAL FELT ltIFORNATION D<%rh SOURCE ~ EON N Ok(-IHSTRUNEHTAL 107 20 APR 1916 04 30-00.0 44.000H 114.800M 4o30NL Ch ORIGIHAL DATA SOUPtCE r: EPD 108 6 NAY 1'916 06 36 00.0 43.800R 116,000M 4.30NI CA ORIGINAL DATh SOURCE ~ EPB 109 13 NAY 1916 02 30-00o0 43.700R 116t200M 'II Z RO REPORTED DANAGE ORIGINAL DATA SOURCE EO)I !

HOH-IH8'I RUNENTAL 110 26 NAY 1916 06=36" 00o0 43.800R 116.000M V Z HO REPORTED FELT IHFOR)M)TION ORIGINAL DATA SOURCE ~ EON

>>OH-IN8)RUNEHTAI POSSIBLY SANE AS NAY 6 EARTIIOUAKE O 111 '8 NAY 1916 LT 44.779H 117 833M

~ M III ~ BB kIEAR BAKER TINE REPORTED AS OREG LT 112 10 SEP 1916 02 57 00.0 43.500H 114.300M V Z RO IMPORTED FELT IHFORNATIOH ORIGIHAL DATA SOURCE ~ EON NOH-INS rRU)IE)ITAL 6

113 28 tIAR 1917 17i05 00.0 46.800H 122.000M V R REAR NT RAINIER.

114 20 APR 1917 04-.30:00.0 44.000R 114.800M V Z RO REPORlED FELT IHFORNATIOH ORIGI)IAL DATA SOURCE EQH .,

HOR-IHSTRUI IEHTAL 115 9 JUII 1917 14 30"00.0 46.800H 1~.000M V R REAR NT RAINIER.

~ 116 1 JUL 1917 13 20"-50.0 50.000R 128t000M 6.40W CA ORIGIHAL DATh SOURCE yt EPB 'r NAGtlIllIDE ~ 6.40 NL y 117 12 HOV 1917 10 47-00.0 46.800H 121oBQOM VI Z HO PtEPOIYfED FELT I)IFOR)IATIOH ORIGI/IAL DATA SOURCE ~ EON ~

HOII-IHSTRUNENTAI 118 '4 tIOV 1917. 00 5/-00.0 46.800R 121,800M V R HEAR NT RAINIER.

~

Q g-O ~

MOONIARD-CLYDE COHSULTAHTS,", '23 APR 81 i' l.Ntittt~ 't

• t r kkJN)b t

~ ~

I Q

MOODMARD-CLYDF CO))QJLTANTS -23 APR~

PAGE 7 CATe DATE TI)lE(G))T) LAT LOHG SL IHTEH HAG SH H DIS 0 S LOCATIOH AHD COHHEHTS NO. 'hY-HO-YEAR HR-HIH-SEC (t)t)) (Kt)) (Kt))

119 23 DEC 1917 15 48 00.0 50 000H 128 000M

~ ~ 6.508 CA ORIGIHAL DhTA SOURCE . EPB HAGNITUDE ~ 6.50 HL 120 4 FEPr 1918 20 rr-43.2 52.28QH 118.370M b. 00))L Ch ORIGIHAL DhTA SOURCE ~ EPD 9 HAGNITUDE ~ 5,00 t)L 121 13 FEB 1918 02:00".00.0 45.535H 122.620M M III R POR'ILANDr ORE.

FEB 1918 LT 46 867H 121.333M

~ M IV MG BU))PI))G LAKE MAStl, TIt)E LISTED AS 7-8 P,H, TI))E REPORTED AS LT O

123 20 FEB 1918 23 15 00.0 46.500H 120.500M V R HEhR YAKIHA ~ l)ASH.

6 124 12 HAR 1918 03"26 00.0 47.600H 117 000M

~ . V Z hO PiEPORTED FELT I)F'ORHATION ORIGI))AL DATA SOURCE EOH HO)l-It)8)Rut)E))TAJ O

125 18 APR 1918 21-.13.-00.0 47.600H 117.400ll R2 IV R W))11E BLUFFS PRAIRIE 8 126 7 HAY 1918 21 15"00.0 48.400H 121.550M W IV R t!ORT)l FOQ( SAUK RIVER 127 21 .JUN 1918 06".47 00.0 46.500H 121.700M V t)EJ'B PACKWOODg MAS) I.

6 128 1 HOV 1918 17 20 00.0 46.700H 119.500M VI Z HO )?EPORTED FELT I)FOR))ATIOt)

It)TE)ISITY DATA 'UGGEST LOCATION SHOULD ~

BE HORT)l OF LISTED EPICE))TER HEAR CORFU')ASH SEE MPPSS PSAR WHP 1/4 AMEND 9 r SECT IOH 2 5. 2 i 1

~ ~

129 6 DEC 1918 08" 41 05i8 49ob20H 125i9 OM V 7 ~ 00H HO REPORTED FELT IHFORHATIOH ORIGINAL DATA SOl.lRCE = GUT '

t)AG))ITUDE(FRACTIO)t NOTATIOHrAVE)r7 00r AUTHORITY-PAS 130 1 JUL 1919 21 49 36.0 50.000H 128.000M 5.50))L Ch ORIGINAL DATA SOURCE -" EPB HAGNITUDE rr 5 50 t)L

~

131 10 J)JL 1919 02-.~:10.0 50.000N 128.000M 5. 00))J Ch ORIGIHAL DATh SO)JRCE r. EPB Q HAGHIT(JDE = 5.00 HL 01-07-16.5 48.630)) 127.150M. 5 '0NL Ch ORIGI))AL DATA SOURCE ~ EPD

'8 132 10 OCT 1919 t)AGNITUBE 5.50. tu.

133 26 DEC 1'919 06 00 00.0 45.433N 122.250M IJ IV BD BULLRUH OREG OT)JER S)IOCKS THROUG))OUT Tt)E HIGHT 9 IHTE)ISITY REPORTED AS IV+ O IÃ)Et)SITY SOlJRCE~DD O . 134 24 JAH 1920 07t09-00,0 49.000H 1>>.700M VII Z tiO REPORTED Dht)J'BE Cl ORI(rIHAL DATA SOURCE ~ EQH t)OH-IHSTRU))ENTAL Q 8 135 ~ 2 HAR 1920 04 20 00.0 46.51SH IWi158M M IV R GLEHO)4hr WAS)).

O MOODMARD-CLYDE CONSULTANTS R 81 r

Q 9

uooDMhf<D-cLYDE coHGULThtffs APR ~ 6

(-.

0 PAGE 8 CAT. DATE TIME(GMT) LAT LOHG SL ItffEN HAG SH H DIS Q 8 LOCATIOH AND COMHEHTS HO. DAY-MO-YEAR HR-MIH-SEC (MM) 'KM)(KM) ~

1'6 14 IiPR 1920 23 45:00.0 42.900H 1+>rloou V Z tJO REPORTED FELT INFORMATION ORIGItIAL DATA SOURCF EQH

)ION-IHSTRUtIEtITAL m 137 7 OCT 1920 02" LT 47,633M 120.067M M V MG PATERVILLEr MASH, 138 9 HOV 1920 20 20-00.0 45.550N 122.600M M . III BB PORTLAIIDi OREG) FROM TtlE REPORT IH THE OREGOHIA'I ~

llOMEVER IT MOULD APPEAR TO BE 00 20 LT 139 28 HOV 1920 11 30 00.0 45,700H 121.500lJ M IV HOOD RIVEr;, ORE.

14ro 15 DEC 1920 18."50:00.0 44,400H 122.400M Wl III BD CASCADIhg OREG (BB l&P)

IHTEtlSITY SOURCE~DB

(

141 25 FED 1'921 20 00-00.0 44.40QH 1~~.400M V Z HO REPORTED FELT It)FORMATION t.

ORI(IIHAL DATA SOURCE rr EQH Hotl-INSTRUMENTAL Cl 142 4 MAR 1921 20 00 00.0 '45.550H 122rboolJ W , III BD PORTLAND'REG) SEVERAL ItffEI'ISITY REPORTED AS SHOCKS II-III IHTEHSITY SOURCEi-.BD 143 14 SEP 1921 11 "00 Oooo 46.100H 118r250M M VI R DIXIE-WALLAWALLA'ASH.

OTHCR SHOCKS AT 13~:00 13 05 13 20.

144 16 SEP 1921 15 LT 47r900H 114o200(J IV UE FELT AT BIG ARM, MONT.

145 22 SEP 1921 19=20-00.0 45.550H 122.600M W IV BB PORTLAND'REG) ItffEHSITY COULD BE III.

IHIEtISO Y SO(IRCE>DD 146 31 JAH 1922 14 30 00.0 48.717H 119.437M M III R TOHA KEfi FELT 147 27 tIAR 1922 06-"15:00.0 45.535M 1>>.620M u IV R POR'fLANDe ORE.

148 15 MAY 1922 17-30-00.0 45.550H 122eboQM M IV BD PORTLAND, OREG 149 1 JUtl 1922 23 30 Qo.o 47.672H 117,405M IJ IV R SPOKhtIE 150 5 Jl)L 1922 18 05 00 0 ~ 45.88QH 121.970M lJ IV R STABLER 151 12 DEC 1922 1 T 45.669H 118.790M W III BB PEtIDLETOH DISTRICT OREG TIME REPORTED AS LT

(~D AS PE)ID!&TON) 152 11 JAN 1923 o4"-3o.-oo.o 42.oootl 12o,5oou Z tIO REPORTED DAMAGE ORIGIHAL DATA SOURCE ~ EQH HON-ItISTRUME)ITAL 153 12 FEB 1923 18-30-0Q.Q'9roQQH 122e700M V Z HO f(EPORTED 1)htlhGE

' r,JIJ ORIGIt!AL DATA SOUtVZ ~ EQH HOH-IHS fRI)MENTAL

~ r r r ~ 'rir

. MQO13MARD-CLYDE CONSULTAH'rs 23 APR 81 c<<

+

rr N+)r i ~ ~

MOODMARD-CLYDE COHSULTA)crs 23 APR 01 eI efI'.

PAGE 9 CAT. DATE ~ TINE(G)fr) LAT LOHG SL INTEH HAG SH H DIS (KH)(KH)

Q S LOCATION 'HD COHHEtlTS O

HO. DAY-HO-YEAR HR-HIH-SEC (HH) 154i 12 )IAR lan& 18 15 00 0 ~ 48 502)l 122 hlou M IV ANACORTES 155 2 HAY 1923 16 24 30.0 50.000H 128.000M 5. OOHL Ch ORIGINAL DATA SOURCE ~ EPD t)AGHITUDE ~ 5.00 HL 9 tr 156 14 JUI 1923 23 o.-oo.o 40.1aoH 121.000M u Iv R SIL'VERTOH-hRLIHGTOH 1~7 , 15 JUL 1923 00 10 00.0 48 i 100H 121 i Goau M IV. R SILVERTOH-hRLIHGTO)l MASH. AHO'fHER SHOCK AT 01 45. o j' 150 6 JA)l 1924 13-"09-"00 0 46,070H 118.320M LI IV R MA4LA MALI A 159 6 JAH 1924 23=10 00.0 45,000H 110.300M Ml V DD HILTON A)ID MESTOH OREG (BD HAP) xbo 24 FEB 1924 os.-4s.-lo,o 44,aooH 127.ooou I) ORIGINAL DATA SOURCE Glff HAGNITUDE(FRACTIONAL NOTATION AVE)tt5.75, AUTHORITY-PAS 0

I 161 2) APR 1924 00".03.00.0 47.597H 122,330M W III SEATTLE OI 27 HAY 1924 oo-.19-.oo.a 46.o70H 110.320M M Iv uALLh MA4j A, 4 SIIOCKS FELr 163 19 SEP 1924 17:..0 00,0 45.730H 122.540M M I'V R BRUSH PRhIRIE 5.75H't30)IL 164 .

1 AUG 1925 20 05:00.0 40 115H 123.443M

~ M IV R PORT AHGFI ES ~ PROUDLY IH STRAIT OF JUAH DE FUCA.

165'5 AUG 1925 00 00 00.0 47i597H 122.330M M III R SEATlLE 166 26 HOV 1925 21 40.00io 48.500H 123.250M LI III R HARO STRhIT 20 Hov 1925 01-.~~=00.0 47.500H 116.000M Ch ORIGIHAL DhTh SOURCE t-. EPD '

HAG)IITUDE ~ 4.30 HL 160 11 N% 1926 03"20 00 0 ~ 46.070H 110.320M W III R MALLA WALLA 169 23 APR 1 726 13 56 00 0 46 070H 110 320LI M t

Iv R MALLA MALLA 170 5 JUH 1926 1'9 50 24.0 43.000H 127.500M 6,00H': tiO ORIGIHAL DATA SOURCE ~ Glff HLGNITUDE(FRACTIO)IALHOTATIOHyAVE)~6~ ooy AUTHORITY PAS 1/1 17 CEP 1926 22 14-40.0 50.00OH 123.000M 5 50)I4 Ch ORIGItlAL Dh'fA SOURCE EPD HAGNITUOE ~ 5.50 HL O

172 22 SEP 1926 21 09 50.5 50.220H 121.090M 5.00HL Ch ORIGINAL DATh SOUI CE EPD HAC>HITUDE = 5.00 HL 173 17 OC'I'926 02 45 00,0 45.730H 121.403M M V R WHITE SALI"iON 174 27 Nov 1926 10:m-.l 'r 47.500)t Ilh.ooou v EH HEAR RAT)IDRUH IDAIIO, FELT APNEA 2,000 SQ HI, TMO DISTItICT SHOCKS 17S 4 DEC 1926 13:ss.-ao.o 40.500)I 123.000M u v 4 30HL

~ R AMCORTEtS-FRIDAY HA&4)R MOODMARD-CLYDE COHSULTAlrrS 23 APR 01 t~

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WOODWARD-CLYDE COH ULTAIITS 23 APR

+

PAGE 10 CAT. DATE TIHE(GMT) LAT LONG SL IHTEH HAG SH kl DIS 0 0 L 0 C A T I 0 tl h-H D C 0 H H E H T S HO. DAY-MO-YE>)R HR-HIH-SEC (MM) (KM)(KH) 176 0 DEC 1926 17~57.00.0 47.700H 120.200M M VI MG CIIELAN-Ei CEtrrRAL MASII. FELT OVER 15poao SQ. HI ~

177 31 DEC 1926 LT 47.430H 120.340M M 'II MG WEHATCIIEEruh.

r OssIBLE, AFTERSHOCK.

170 1 JAN 1927 LT R7.842H 120.023M W III WG LAKE C)IELAHguh.

POSSIBLE AFTERSHOCK.

179 3 JAH 1927 04 58 00.0 47.593tl 120.650M u VI R LEAVEHWOR'I'tl 180 28 HAR 1927 07."56:00.0 46.10QH 124.10QM IV R HORTtl IIEADg PROBABLY OFF SOIIIERH MASIIIHGTOH COAST.

101 9 APR 1927 05."00 QO.Q 44.800H 117.200(I EH V BD RICIILA)ID AREA OREG 8

182 9'PR 1927 07 OQ 00.0 44.800H 117.200M M1 IV BB RICIILhHD ARFA OREG (BD HAP)

IHTEt!SITY REPORTED AS IXI-IV 103 9 APR 1927 o9:3o:oo.o nn,ooaH 117.200M u1 IV BB RICk)LAHD AREAR'REG (BD HAP>

INTEttsITY REP()RTED AS III-IV

~ ~

184 9 APR 1927 14 00 QQ 0 44.800H 117.20QM Ml I'V BD RICIILAND AP~, OREG (BB HAP>

~

IHTEtlSITY REPORTED AS III-IV 7 HAY 1927 21-56 00.0 50.150H 127i850M 5.50ML Ch ORIGINAL DATA SOURCE ~ EPB IIAGNITUDE ~ 5.50 ML 106 24 Jhtl Imo 17-.45:oo.o 49.1ooH 1~ ~ 200M 3. QQML CA OftIGIHAL DATA SOURCE r EPD HAGtIITUDE ~ 3.00 HL 187 2 FEB 1920 12 52 ooia 47.800H 121 700M

~ VI R HEAR STARTUPi WhrSII ~

180 '

SEP 1920 LT 44.700H 124ilaau IV 'B NEWPORT ~ OREG TIIIS AHD THE FOLLOMIHG 8IIOCK HAY BE llew SAHE.

TIHE REPORTED APi LT 4 SEP.1920 04-40-OoiQ 44.300H 123i500M ul IV BB tIE()PORT AND EUGENE, ORFG. PLOTTED AT tIIDPOItIT.

190 5 SEP 1920 05.36.00.0 42.100H 115.200M 5.20HL Ch ORIGIt(AL DATA SOURCE . EPD 191 17 JUH 1'930 15-no-.aa.o 46.8aaH 122.300M III R HEAR LA GRANDE ~ Mhskli 7 JUL 1930 00=30=00io 47i863N 121 017M

~ M III R SULTANA MAGI).

193 8 JUL 1930 20 30:00.0 45.043H 123.258M M III BB PERRYDAI Es OREG 194 9 JUL 1930 18 LT 47.000H 115.QQQM V Etf uEsTER)l MONTANA. FEI T AREA NOTED As LARGE.

19J 19 JUL 1930 02-30-00,0 45.000H 123.200M VI ., BB PERRYDALEi OREG 196 19 hUG 1930 07:05-00.Q R7.000H 121 000M

~ IV mes" suf Thtf, uhm.

e MOODWARD-CLYDE COHNJLTAHTS 23 APR 81 i

I i i i

4 MOODMARD-CLYDE COtlm TJÃrs 23 APRIL PAGE 11 CAT. DATE TIMF(GMT) LAT LOHG Sl INTEH MAG SM H DIS Q 8 LOCATION AHD COMMEHTS HO. DAY-MO-YEAR HR-HIH-SEC (HM) (KM)(KM) >>

197 3 SCP 1930 13" 00 00.0 47.300H 117.000M V R HEAR LAMOHT) MhSH.

190 10 APR 1931 03 ~=00 ~ 0 48.700H 122>>200M VI R FELT OVER 5)000 SQ ~ MI ~ HEhB SEDRO MOOLLEYr MASH 199 12 JUH 1931 07 30 00.0 47>>863tl 121.017LJ M III R SULTAN 200 17 AUG 1931 03 >0-00.0 42.300N 122.800M 4,30tLL Ch ORIGItlhL DATA SOUL>>>>E ~ EPD 201 0 DEC 1931 14 2)"5.00.0 47 830H 120,020M

~ M IV R LAKESIDE CHELAN Fhl-LS)

)Q2 31 DEC 1931 15 )5=00.0 47.500N 1')3.000M VI R FEI T OVER 10)000 SQ ~ MI ~

203 5 JAH 1932 23 13"-00.0 48.000H 121.800M R FELT OVER l)500 SQ. MI.

204 14 JAN 1932 16 10-0Q.Q 45.550H 122 600M

~ M IV DD PORTLhHD) OREG 205 26 JAH 1932 10 11 54.0 52,0QQH 125.000M 5>>QQML Ch ORIGIHAL DhTA SOURCE ~ .EPD MAGNITLIDE = 5.00 206 1 Jhtl 1932 15=~=00.0 47.00atl 1~~.300M M III R. ALDERMOOD MANOR o[

207 208 11 FED 1932 07 10.00.0 47.0K~A 121.817LJ M, 19'ED 1932 20-13 00 0 47.063N 121.017W

~ M III III R

R SULTAN SULTAN ol 209 23 APR 1932 13 20 00,0 40.500H 122.235M LI III R SEDRO-WOOL LEY o[

210 11 JUH 1932 02 l>>5 Qa.a 40.270H 121.780M IJ IV R FORTSON 6

211 20 JUH 1932 0'9-"26-27.0 43.000H 127.500M HO ORIGIHAL DATA SOURCE GUT tIAGHITUDE(FRACTIOHhL NOTATION,AVE) 5:50 AUTHORITY-PAS 0

is JUL 1932 06:ai:Qa.n 40.aaaH i21.00aM R FELT OVER 14,000 SQ. MI. SULThtl ~ LJASII.

213 6 AUG 1932 22 16 00 0~ l7 700H 122 300M

~ VI 5>>50N'>>50ML R FEL'I'VER 500 SQ. MI ~ SEhTTLE, MASH.

214 7 hur) 1932 06zaa:00.0 40.000t, 121.800M V R FEL'I'VER 7)000 SQ. MI. SULThtlg LJC&I ~

215 15 AUG 1932 10-<<0-00.0 47.042H 120.013M W III R CHELAH 216 18 AUG 1'932 20 23 00,4 48.390H 127.620M Ch 217 25 AUG 1932 11:20 00.0 47.597H 122.330M M III R SEhTTLE 210 31 AUG 1932 07.-50.-0a.a 47.063tI i21.817M W III R SULTAN 219 5 SEP 1932 10=30 QQ.Q 47>>030M 120>>020M M III R LAKESIDE

)')Q 20 SEP 1'932 07"05 00,0 47 06 tl 121.817M

~ M II'I R SIJLTAH

)21 5 OCT,1932 19 00 00,0 40.502tI 1')')..610M M IV R AHACORTES MOODMARD-CLYDE COHSULTAHTS 23 APR 01 4>>

8 4 MOODMARD-CLYDE COH! ULTAIfl'S 23 APR~

c. <a

~ ~ ~

PAGE 12 CAT. DATE TIHE(GHT) LAT LONG SL ItffEN HAG SH H DIS II S LOCATION AHD COHHEHTS HO. DAYWO-YEAR HR-HItl-SEC (HH) (KH) (KH) 222 5 OCT 1932 19:20.00.0 40.502H 1K?.610M M IV R AHACORTES 6 OCT 1932 00"45=00.0 48.052tl I>+s598M M III R FERHDALE 224 3 JAtl 1933 Ql 20-00.Q 47.597H 122.330M M III R SEAT'fLE 21?5 3 JBI 1933 06"00 00.0 47 '97tl 1>>.330M LJ IV R SEATTLE 226 29 JAIJ 1933 0'9 45 00.0 48.117N 1~.755M M III R PORT TOWNSEND 227 11 FED 1933 01 15 00.0 47,910H 114.203M Iv UE FELT ROLLIHS ~ HONT. AFTERSHOCKS DURIKG HIGtlT 220 10 HAI? 1933 09:01-.00.0 47 '63H 121.817M W III R SULTAN 229 2'9 APR 1933 09 05 00.0 47.900H 120 ~ QQOW M III R CIIELAH-Ph'fEROS 8 230 29 HAY 1933 20 30 00.0 47.042H 120.013M M III R CHEI AN 231 31 HAY 1933 20" 20-00.0 n7.842H 120.013M M IV R CIIELAH 232 31 HAY 1933 20 30 00.0 47.042H 120.013M IJ IV R CHFJ AH O >33 19 JUL 1933 05-06 36 Q 43.000H 127.250M 5,25H'O ORIGINAL DATA SOURCE ~ GUT HAGNITUDE(FRACTIOHAL HOTATIOH,AVE) 5.25, AUTtIORITY-PAS 234 22 AUG 1933 11 %~i-QQ.Q 47.'980H 122.200W M IV R EVkViT 235 22 AUG 1933 12 30 00 ' 47.762H 122.203M M IV R DOTHEI L 236 22 AUG 1933 12-35 00.0 n7.597N 1>>,330lJ M IV R SEATTLE' O 237 23 NOV 1933 14.-~~:00.0 45.mN Va.620M M III PORTLA)JDe ORE o 230 JAH 1'934 40.713H 1Ã.203M ll III R ACHE, MANI. - P.H, 6- 1 6 FED 1934 13:20-00.0 47o600H 122.400M IV R SEATTLE-TACOHA STRONKST IHTEHSITY AT GRAPEVIEM.

239 9 9 HAR 1934 16 00 00.0 47 '30H 120,020IJ M IV R LAKESIDE on] 10 HAR 193n 15 53 00.0 47,800H 119,905M ll III R CIIELAN FALLS 2n2 10 HAR 1934 00:00-00.0 47.64QN 120.068M W III R MATERVILLE 8 243 5 HAY 1934 04:06:00 ' 40sQQOH 123.000M M V R FELT OvER 10,000 so. HI. JUST EAST OF VICrORIA, D.C.

244 10 HAY 1934 00"00 00.0 40.lM~ 122,217M M III R DEHItJG 6 JUL 193n 22t50 00.0 47.497H 121.705M M III R HORTII DEHD 2n6 10 SEP 1934 24 LT 46 '98H 120,540M M V MG ELLEt?SDURGg WAS)I.

TIHE REPORTED AS LT 0

MOODMARD-CLYDE COHHJLTAHTS 23 APR 01

WOODMEN(D-CLYDE COHSULTA)ffS 23 APR ~ i I

PAGE 13 CAT. DATE TINE(GHT) LAT LONG SL INTEN NAG SH H DIS O 8 LOCATION AHD COHHENTS HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KN)(KN) 247 22 SEP 1'934 il 30 LT 46.998H 120.540W M IV WG ELLE)%BURG t MASH.

TINE REPORTED BY USE 240 22 SEP 1934 17 37 LT 46.998H 120.540M M IV WG ELLEHSDURG~ WASH.

6 TIHE REPORTED BY BY USE 249 26 SEP 1934 lb.15.LT 46.990H 120.540M M V WG ELI-EHSBURGq MhQI, TINE REPORTED BY BY USE 250 26 SEP 193> 16 45"LT 46.998H 120.540M W V WG ELLEHSBURG, MAQI.

TIHE REPORTED BY USE 251 26 SEP 1934 21 15:LT 4ba998H 120.540M W V MG ELLEHSBURGq MAQI.

TIHE REPORTED BY USE, 4 OCT 1'934 02 26 LT 4bs998H 120.540M M IV WG EUXHSBURGp MASH.

TINE REPORTED BY USE 253 11 OCT 1934 21 19 LT 46a990H 120.540M W IV WG EU EHSDURG WAQI.

TINE fKVORTED BY USE 254 19 OCT 1934 23 31 LT 46.990H 120.540M M V MG ELI EHSBURGp MAS)l.

TINE REPORTED BY (ISE 255 '9 OC1 1934 10"36 LT 46.998H 120.540M M IV MG ELLENSBURG ~ WAL'll TIKE

~

REPORTED BY USE 256 1 HOV 1934 07 28 LT 46.998H 120.540M W V MG ELLEHSBURGp MASII.

TINE REPORTED BY USE 257 2 lIOV 1934 15 17-LT 46.998H 120s540M W V MG ELLEHSI4)RG ~ MAQI, TINE REPORTED BY USE 258 3 HOV 19'34 14 50 00.0 48.000H 123oOOOM W IV R FELT OVER 10,000 SO. HI.

259 2 DEC 1%84 13 05:00.0 40.190H 114.138M IV UE CRESTOH HONTE -ACCOHPAHIED BY DULL RUHBLE 260 6 FED 1935 13=20-00.0 47.333H 122.033M M IV R GRAF'EVIEW 261 17 FEB 1935 06 07 00a0 48.253h'23.103M M III R DARRI HGTOH 29 HAR 1935 00 39 LT 47.000H 114 '00M V EH ROLI INSET HOHT ~

9 JUL 1935 22 45 00.0 47.700H 120 '00M R tKAR CHELAH FAI LSt MAQI.

12 OCT 1935 01 03"00.0 47.662H 120.223M W V R ENTIAT 265 1 HOV 193'3.3S 00.0 47 472H 11S 97wW

~ ~ IV UE MALLhCE~ IDAHO 266 20 HAR 1'936 09 15 00.0 50.500H 119 500M

~ CA ORIGIHAL DATA SOURCE ~ EPB NAGHITUDE ~ 4.50 HL MOODMARII-CLYDE CONSULTANTS 23 APR 01 F'ACF

I ~

i 0 WOODWAI&-CLYDE COHQJLTA)JTS >

APR@

PAGE 14 CAT, DhrE Tl)IE(G)IT) LAT LOHG St. INTEN HAG SH )I DIS O 8 LOCATION AND. COHHENTS tlo. DhY-HO-YEAR )N-HIH-SEC (H)1> (KH) (KH)

Q 267 16 JUL 1936 07 07-"49',0 46.208H 118.233M M VII 6.10HL M 1979 WCC RELOCATION. ORIGIHAL ISS USC ANIl GS LOCATION MAS 46.200H 188.200M. PAS HAGW.75 .

268 16 JUI 1936 07 37-00.0 45.813H 118.491M M III DD ATHENA OREG AFTERSHOCK. REF'IVES THIS LOCATION AS iATHDJSv IIOWEVER> AT)IEHh MAS PROBABLY )IEANT ~

269 16 JUL 1936 12-"30-00 0 ~ 45>950H 118.420)J IJ III R ATHENA> ORE-MAI Lh WALLA) HAHY AFlERS)IOCKS WERE FELT 270 18 JUL 1936 16-30 00.0 45.93ZH 118.383M IJ V BD HILTON-FI(EEWAlER OREG AFTERSHOCK 271, 25 JUL 1936 08 45 00 ~ Q 47>700H 122>300M tl IV R BOT)KLL-SEhTTLE 272 30 JUL 1936 11 20 00 ' 45.935H 118.388M M IV FREElJhTER r ORE 273 30 JIJL 1936 12 00 00.0 45.935H 118a388M M IV R FREEMATER ORE 274 30 JUL 1936 12 "20 00 0 ~ 46.07QH 118>328M tl IV R MALLA WALLA 275 4 rUG 1936 o9=19=oo.o 45.80oH 118.6aau EH V BB )IELIX> OREG 2/6 24 AUG 1936 09.50 00.0 45.933H 118e383M M III BB HILTOH-FTKEMATERg OREG rn 28 AUG 1936 04 39 00.0 45.933N 118.383M M V DB HILTOH-FREEMATER OREG WALLA llhLLA~ MAS)l INTENSITY IV 278 '.'i SEP 1936 12 l>3 35.0 42,500N 128,0QOM Ho ORIGIt)AL DATh SOURCE C>trf HAGHITUDE(FRACTIONAL HOTATION,AVE> 6.20 AUTHORITY-PAS 279 17 Hov 1936 lo=oo=oa.o 46,070H 118.328M u III R MALLA lJALLA 280 17 HOV 1936 10 30 QQ.Q 46.07QH 110.328M M III R MALLA WrJ-LA 281 17 tloV 1936 12 00:00.0 46.070H 118 328M

~ M III R WALLA WALLA 282 8 FEB 1937 20 15"00 ' 46.070H 118.328M W III 6,20H'.7)l)J' uN.LA WALLA 283 9 FEB 1937 22"-20.-00.0 46,avoN 118.328M u IV R IJALI h WALLA

>84 4 JUH 1937 14 43 00.0 46.070H 118.3281J 'W IV R WAU n uALLA 1 tlOV 1937 13-"15-00 ' 47.045H 122.670ll IJ IV R OLYIIPIA 286 10 NOV 1937 07 19 23.0 43.000H 127.000M Ho ORIGIHAL DhTA SOURCE GIJf H)GNITUDE(FRACTIONAL NOTATION > AVE)~5. 75> AUTHORITY-PAS 207 11 HOV 1937 16-30:00.0 47.045H I> >.670M IJ III R OLY)tPIA 288 14 DEC 1937 09 00-00.0 44,919H 123.317M tl IV BD teLLAS, OREG; SEISHIC ORIGIN DOUBTFUL. THoUG)rr BY SOHE TO ICAVE BEEN DUE TO HETEOR.

289 18 DEC 1937 a4-. t.T '4.5ooH lib.aoou v EH CASCADEe IDAIIO. FELT AREA l>200 SO HI MOODWARD-CLYDE COHSULTrÃfS 23 APR 81 Q

Q nh>>e q>i

MOODMARI?-CLYDE CONQILTFÃTS 23 APR g

PAGE 15

\

CAT. DATE TXtTE(GHT) LAT LONG SL IHTEN tlhG SH H DIS 0 S IOCATXOH AHD .CO)IHEHTS ~ ~

NO. DAY-t(0-YEAR HR-tIXH-SEC (Htt) (KH)(KH) 290 6 JAH 1930 13-11 00 ' 47.000H 122.400M V R PUGET SOUHD REGIONS MAStl ~

291 19 FED 1930 14 10 00.0 49.267H 123.117LI M VX R VANCOUVER'.c ~

292 20 HAY 19'0 10-14-01.0 42.750tl 126.000M 6. HO ORIGIHAL DATA SOURCE - GUT HAGtlxlUDE(FRACTIOHAL NOTAl'IOHI AVE)('6. Oot AUllKRITY-PAS 293 23 JUL 1930 02 Fo ooea 46.105N 1>M.035M LI IV R ASTORIAp ORE ~

3 hUG 1938 13-""2 30 ' 43.000H 127.500LI Oat('.60H'.

HO oRxoxHAL DATA SOURCE Gur tL(?GttxllIDE(FRACTIONAL HOTATION,AVE). 5.60 AUTHORITY-PAS 295 11 AUG 1930 10 52 00 0 ~ 45e935H 110 ~ 30Pru LI IV R tIILTOHr ORE 296 27 oc'r 1930 23.-1o.-oa,o 45,935tt 11'00M u xV R HILTONr ORE 0 297 26 JAN 193't 07-"59=00.0 45.700N 118.700M R2 IV R HIS(SIOHg ORE, 290 14 FEB 1939 13 00 00.0 45on53H 123.043M M IV BBTILLht'IOOK hREh OREG (ASSU)LED AS TIUJ(JI()OK) 8 299 13 l'J% 1'939 19 45 00.0 45s535tt 122o620M M IIX R PORTLAND'RE ~

CP 300 13 HOV 1939 07"nn-"50.0 47.200H 123,000(l VII R FELT OVER 60gooo SO. III' S

301 15 NOV 1939 00"00-00.0 45.535H 122.620M Ll III PORTLAND'RE.

302 23 tlute 19no 03:10:00.0 47.3oaH 1~~.600M u Ixx R SEA'rrLE-OLYILPxh 3o3 24 NAR 19no o3:on=oa,o 46.000N 121.200M M IV R llT RAINIER FELT

~ OVER 15,000 SO. NI.

e 304 23 APR 1940 18-11 00.0 47.597tl 122.330M LI III R SEhTTLE g Oc 25 APR 1940 19'2 00.0 47.597H 122,330LI M III R SEATTLE Q 306 2) HAY 1940 16=02-.00.0 nn.n3aH 12n.o63u u'v BB WAI DPORT ~ OREG 307 11 JUH 1940 18 50 12ea 53.000H 125.000M 30N Ch ORIGINAL DATA SOURCE .= EPB mctIXTUDE 4.3O 300 27 OCT 1'940 '>>-30 00.0 40.100N I>+.Boou M V R PORT ANGELES-PORT TOWNSEND-EVERETT'ELT OVER 12 000 SO. HX ~

14 HOV 1940 07 2 l 00 0~ l7o700H 121 o500W R PRODTLLY ~~ AS PRECEEDIIIG. COOM?IHA'TES APPAR IH ERROR SINCE FELT HOST STROHGLY IH SEhl'TLE TACONA AREA.

310 7 Cd% 1941 09 25 00.0 40.300H 119.600M M VI 4,50 R FELT OVER 5p500 SO. HX.

311 12 APR 1941 17 no 00.0 47.640H 120.069M M IV R MATERVILLEg FELT WOODWARD-CLYDE COHSULTAtrfG '3 APR 81

~ ~ I r'ee.ac>

w'-

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WOODMARD-CLYDE COHSULTAt(TS 23 APR li ~ ~,

(.- t I

PAGE 16 CAT. DATE TIME(GMT) LAT LONG SL IHTEN MAG SM H DIS 0 S LOCATIOH AHD COtlMEHTS NO. DAY-MO-YEAR HR-MIN-SFC (MM) (KM)(KM) 312 9 JUN 1941 06 17-26.0 42.750N 1$ S.OOOM ORIGINAL DATA SOURCE . GUT 5s25l'l',00N'O , MAGNDUDE(F(?ACTZONhL NOTATIOH AVE)~>.25 AUTHORITY-PAS 6 313 9 JUN 1941 08 43 45 0 42s750H 126 000M I) ORIGINA( DATh SOURCE ~ GUT MAGNITU()E(FRACTIOt(AL NOThl ZON,AVE) -5.00 AUTHORITY-PAS 6 314 26 JUL 1'941 20 00 00.0 =45.430N 122.774M M IV 99 TIGAPD ~ (NAG IT IS POSSIBLE TtthT THERE MAS BLASTING ON lt(E HIGHMhY AT DURAM TPJtT CA(SED THIS.

315 20 OCT 1941 06 05 00.0 44,493N 124.083M LI III 99 SFAL ROCKs OREG 316 31 OCT 1941 12 43 00.0 45o53+N 1~>.620Ll M I'V R POR11 AHDe OREo 317 23 DEC 1941 17 48-00.0 44.800H 117.000M Ml IV BB ROBIt(ETTE OREG (99 MAP)

Zt(TEt(SITY REPORTED AS III-IV O 318 23 DEC 1941 22 20 00 0 44.800H 117sooow Ml Iv 99 ROBItKTTEr OREG (99 MAP)

D((Et!SITY REPORTED AS III-IV, .

319 29 DEC 1941 18 "7-00.0 45.535N 1 >+a620W M VI R PORTLAND ~ ORE ~ ~ FEl T OVE(i Stooo SO ~ MI ~

320 31 JAN 1'942 06 49 11,3 51.180N 123,580M 5e50I(L Ch ORIGItlAL DATA SOURCE EPB MAGNITUDE ~ So50 ML 0 321 ' 23 FEB 1942 14 03 00.0 47.600N 120.200M LI V R WEtlhTCHEE-Ct(ELAN FALLS, TIME REPORTED BY USE 322 13 MAY 1942 00~52 00.0 44obooN 123.400M 4,30ML Ch ORIGINAL DATh SOURCE EPD MAGt(IIUDE ~ 4.30 ML 8

323 12 Jl)H 1942 09 30 00.0 44 900tl 117ilooM EH V

~ BD t(ALFWAY hND PINEi OREG 324 12 JUN 1942 09:3.'!00.0 44.860H 117 086ll

~ Ll III '99 Plt(Ei ORE(3 325 14 J()H 1942 06-00-00.0 44 860H 117.086M

~ W III 99 PINEy OREG 326 6 OCT 1'942 02-58 18.0 43.500N 126.800M ns70ML Ch ORIGINAL DATh SOURCE EPB Q 3+7 14 OCT 1942 11 30 00.0 48.310N 120.652LI M V R STEllE'KIN. TIMI= REPOI TED DY USE 328 1 NOV 1942 17 00 00.0 45.600tt I'~.700M R F'Oli (LANDg OREGOH.

RASMUSSEtl GIVES 1'IME INCORRECTLY 'AS 18:00 329 1 NOV 1942 18 "50=06.0 48 ~ 000N 116.700M VI 5. 5QML Etl ShttttPOIt(T, IDNlO; t ELT AREh 25 000 SQ MI INSTR.

8 ORIGIN 1'ZME AND EPICEHTER 330 1 N(N 1942 19 30-00 0~ 44o63+M 121.130LI M IV 99 HADRASg OREG S

331 27 NOV 1942 10"Hi 48.0 *42.200N 126.000M 4.90ML ~ Ch ORIGINAL DATA SOURCE EPB 332 24 APR 1943 oa:lo:nh.o 47.3ooN 12a.booM VI FELT ovE(" lo,aaa 8(?. MI.

W(IDMARD-CLYDE CONSULTANTS, 23 APR 81

MOODMARD-CLYDE COHSULTAHTS PAGE 17 CAT. DATE .

TXt)E((iNT) LAT LONG SL XfffEH NAG SH H DIS O 8 LOCATIOH AHD COHHEHTS HO ..DAYWO-YEAR HR-HI)I-SEC (HN) (KN)(KH) ~

3M 24 HAY 1943 LT 47e317H 119'.533M M IIX MG EPIIRATAp MhS)l.

TINE REPORTED AS LT 334 24 JUH 1943 16"44 "00e0 44o058N 121.308M M XII BB BEHD y OREG 335 4 AUG 1943 ~ LT 44.900H 116.900LJ Ml III BB kOCKVXLLE OREG (BB HAP) HIHOR TRE)IORS LJERE FELT NORE OR LESS CONTINUO))SLY FOR 3 DAYS AT fHE )RAKE RA)ICH.

TREfmRS ARE PROBABLY RELATED 'FO A STEN4 VEHf IH THF IIILLSXDE HEAR TILE f)AHCH. SIHXIJLR DXSllJRBAHCES HAVE OCCLIRRED FOR T)IE PAST 6 OR 7 YE(es.

TXHE REPORTED AS LT 336 22 SEP 1943 21 50 LT 47.967H 119.0QQM M IV MG GRAND COULEE'AS)l.

0 TIHE SPORTED BY USE 337 6 OCT 1943 .15?09"00,0 47.522H 121.815M M V- R HOQUALHIE 338 29 fIOV 1943 00 43 00 0~ 48.400H 122.'900LI LJ VI R FELT OVER 9000 SO. HI.

TXHE REPORTED BY USE 339 3 HAR 1944 00=00:00.0 47.300H 122.600M M XIX R SEA'I"fLE"OLYHPXA 340 5 HAR 1944 09 00"00.0 44 '19H. 123.317M M III 99 DALLASt OREG 341 ' HAR 1944 13. 00 00 0

~ 44.919H 123.317M M V BD DAI LhSr ORFG 342 31 fIAF( 1944 21.15 00.0 47.000H 123.000M R FELT OVER 2t500 SQ. HI.

TINE REPORTED BY USE 343 1 APR 1944 00-00-00.0 46.265H 122.155M LJ IXI R SPIRIT LAKEg OCCURRED BETMEEN 05 30 AHD 06 00.

344 10 HAY 1944 03=30=30,0 47.497H 121.785M IIX HORT)I BEI'ID TIHE REPORTED USE 10H'O M R X<Y 345 12 JUI 1944 19 30 23.0 44.500H 115.500M VII b. REPORTED FELT INFORNATIOH ORIGXflAL DATA SOLACE ~ GUT HAIDIXTUDE(FRACTXO)' HOTATIOH AVE) b. 10 AIJI))ORITY-PAS'46 21 JUL 1944 12:25 OOoO 42.500H 127.000M 4 OOHL

~ Ch ORIGINAL DATh SOUFICE ~ EPB 347 2 SEP 1944 01 25 14.0 46o070N 118.328M M IV R MAI.LA MALLA, T'IHE REPORTED BY USE 348 8 SEP 1944 06 16 52e0 4bo900H 122 500M~ M IV R ELBE-OLYHPIA. TXHE REPORTED BY USE 16 SEF 1944 22:44:42.0 42.500H 127,000M 4.30)IL CA ORI SINAI DATh SOI)FACE - EF'9 350 18 SEP 1944 08.14 00.0 47.100H 122.700LJ M IV R OLYHPIA-TACOHA. Tlf)E REPOR'fED DY MM 351 18 SEP 1944 08:52=37.0 47.100H 122.700M M IV R OLYHPIA-TACOHA, TIHE REPORTED BY USE 352 20 SEP 1944 03:00:00.0 44.900H 116.900LJ Ml IV BB ROCKVILLEi OREG (BD HAP) 4 MOODMARD-CLYDE CONSULTANTS 23 APR 81

~ = '

(

PAGE 18

e MOODMARD-CLYDE CORDJLTAtffS 23 N%

PAGE 18 O

CAT, DATE TItLE(Biff) LAT . LONG SL INTER HAG SH II DXS Q 8 .L 0 C A T I 0 H A N D C 0 tl tL E H T 8

'3 t10. DAY-((0-YEAR HR-HIH-~ (HH) (KH)(KH)

O

. 353 7 OCT 1944 18"45 00.0 47.800H 119.985M M III R CHELAH FALLS. TINE REPORTED BY USE 354 31 OCT 1944 11-34"-28.7 47.800R 120.600M R TINE REPORTED BY USE 355 7 DEC 1944 04 48 OQ.Q 46.977tt 123.890M M VI R LLOOUI AH 356 21 DEC 1944 05 19-06.0 42.000R 125.000ll 4.70HL Ch ORIGINAL DATA SOLJRCE . EPD 357 2 J DEC 1944 13 12 08.8 47 662N 120.2230 'M IV R EHTIhT. TIICE REPORTED DY LJSE

<75H'l0

~

358 30 DEC 1944 22 03 02.0 43.750H 126.750M 5 ORIGXHAL DATA SOLJRCE >< GUI HAOHXTUDE(FRACTIONAL NOTATION,AVE)~~.75, ALfft(ORITY-rAS 359 4 JAR 1945 02 34-48.7 662H 120.223M M 'V EtffIAT 360 28 1945 05 06-08.1 48 242)f 1%..377M

~ M VI R STARMOOD 50 HI. NORTH OF SEATTLE.

361 14 FEB 1945 03=01=15.0 44.700R 115.400M VI .: C.QQH' HO REPORTED FELT IHFORHATIOH ORXGItlAL DATA SOURCE = CGS tLAGHITUDE(FRhCTIOHN HOTh'f ION AVE) 6.00 AlfltlORITY-PAS 362 27 FEB 1945 11:00 00.0 48.480H 121.190M M IV R MItffllROP.TXtLE REPL)RTED BY USE 363 2 HAR 1945 07i54"59.3 47.662H 120.223M M IV R EHTIAT. TIKE REPORTED BY USE 9

5,50H'AR 36>> XX hPR 1945 11=22=m.a 42.000)i 126.000M 5. QQHL Ch ORIGXtlhL DATA SOURCE ~ EPB 36'.i 29 APR 1945 20 16"17.0 47.400R 121o700M VII HO REPORTED FEL'f ItFÃ@LATION ORIGINAL DATA SOURCE ~ USE tLAGHITUDE(FRACTIONAL HOThTIOR AVE)&.50 AU1)lORXTY-PAS

'9 366 30 fFR 1945 07-45 45 ' 47.400H 121.700M VI R hFTERSllOCK ~ TINE REPOPTED BY USE 367 1 HAY 1945 19 46 04.0 47.400N 121.700M V R IMO hFIERSLLOCL(S V OTllFRS FELT.

1'IViE L~i)RTED BY USE

. 368 15 JUR 1945 22 24<<21.0 49.000R 123 5QQM 4 o 20)LL R Cht(ADXAH )JL)RDFR-8'fMITS OF GEORGIhy HEAR POINT ROBERTS

~

TINE REPORTED BY USE 8 369 23 SEP 1945 02 40 00.0 46.070H 118o32BM M IV MAILA MALLA. TIHF REPORTED BY USE 370 23 SEP 1945 09 58 40 ' 48 ~ QQQH 114 '00M VI UE M SIDF OF FLATHEhD LAKE 20 llI H OF POLSOH, tLORT.

FELT AREA APtlKJ!(. 36y000 SQ HI 8

3/1 20 SEP 1945 22-24-10.0 42.000H 126.000M 6.00R' RO ORIGINAL DATh SOLJRCE ~ Glff tLAGNITUl)E(FRACTIONAL NOTATION AVE) 6. 00 AU11(ORITY-PAS 372 12 HOV 1945 04=0.'J-QQ.Q 48.00QH 122.500M M VI R NOR'LLLERH PUGET SOUtLD, 1'IHE REPORTED BY USE 21 HOV 1945 00"29 56.2 50.230H 127.370M 4. 50 CA MOODMhRD-CLYDE CORSLJLTAtff8 23 FJ R 81 l,

~

8

WOODMARD-Cl YDE CONSTANTS PhGE 19 CAT. DAT'E TItfE(Gt(T) LAT LONG SL INTEH HAG SH tf DIS 0 8 LOCATIOH AHD COHHEtlTS HO. DAY-HO-YEAR HR-HIN-SEC (HH) <KH) (KH) 374 23 HOV 1945 23=30 00.0 46.607H 121 o670M M IV R PhCl(MOOD. TItfE REPORTED BY USE 3/5 5 FEB 1946 16 12-42o0 47.800H 120.200M M 'V R CHELAN-ARDEtfVOIRp FELT 376 6 FEB 1946 03.-20:00.0 48a527H 121 o430M M IV R I fARDLEt(OUt<f' 3/7 6 FEB 1'946 10 ll 00.0 48 500H I>'~.235M

~ M IV SEDRO" MOOLLEY 3/8 15 FEB 1946 03 17 47e0 47.300H 1>>.900M VII 5 /5H 25 li'0 REPOliTED DAHAGE ORIGINAL DATA SOURCE ~ USE YiAQfITUDE(FRACTION."J NOTATION r AVE)W a 75 3/9 15 FE)3 19nb 12 17t15.0 46 870N 1>> 268M

~ ~ M VI EATOHVILI.E 380 23 FED 1946 08t54 53oQ 47 045H 122.890M

~ M VI OLYra'IA 381 20 HAR 19nb 04 27>>00 0~ 47.500H 122e000M M V R ISSAOUA)l-l<IRKLAHD 382 23 JUH 19nb 17-13-1/.0 49.900H 125,300M VIII 7 30H'

~ NO IMPORTED DOGE ORIGIHAL DATA SOURCE ~ OTT ISOSEIStQ'J HAF'UBLISllED BY USF tiAGHITUDE(FRACTIONALHOTATIOHp AVE) =7. 30r AUTHORITY-PAS 383 5 JUL 19nb 02"41"-18.4 49.830N 125.500M ni,50HL Ch ORIGIHAL DATA SO()RCE ~

EPD tfAGHITUDE -- 4.50 t(L 304 11 DEC 1946 06 09 LT 48,400H 114.400M VI EH t(ORltfWESTERH t(OHTCP(A ~ FELT AREA 3 000 SQ I41 TINE REPORTED BY USE Q

385 27 DEC 1946 16 43 00.0 47.400H 1~.500M M IV R DREI (EATON-TACOHA 386 5 Jhtl 19n7 LT 47.600H 1~> 330M

~ M III 'MG SOlflH TItfE SEATTLE'ASfl, REPORTED AS LT 387 12 JAH 1947 09<<"40-00 ' 47.537H 121.810M M V R SHOQUALtfIE FALLS 388 2 APR 1947 00~58-00 ' 47.nOQH 122./OOM M V R OLYHPIA-OUILCEHE 389 20 SEP 1947 10 30 00 ' 47s200H 122o400M M V R PUYALLUP-ThCOHA Q 390 22 SEP 1947 02:16:01,0 43.500H 128o000M 5. 50t(L Ch ORI()IHAL DATA SOURCE EPD:

391 22 DEC 1947 10'30 00 ' 47.662H 120.~MM M IV R EHTIAT 9

392 10 JAH 1948 00 45"-50.0 42.000H 127.000M 5. 30f4L Ch ORIGItNL DATA SOURCE EPB e 393 13 JAH 1948 06 W"00.0 47 '900H 120.300M M V R LUCERt(E-WATERVILLE 394 13 FEB 19n8 21-00=00.0 46.632H I r3.058M M IV R ADHA 3'r. 1 tfAR 19nG 06 30 00.0 45.683H 123.200M M IV R DUXTOH> OPiE.

MOODWhRD-CLYDE CONSULTANTS 23 Af'R 81 PAGF 20

O LIOODMARD-CLYDE COtlSULTAHTS 23 APR P~

PAGE 20 CAT. DATE Tlt)E(GMT) LAT,. LONG SL,XtfrEN MAG SM H DIS Q S LOCATION AND COMMEtlTS NO. DAY-MO-YCAR t)R-MIN-SEC (MM) (KM) (KM)

A 396 25 MAY 1940 15-13 07.0 hnoaoaN 127.000M 5 a50H'O ORIGINAL DhTA SOURCE -

MAGHITUDE(FRACTIQHALNOTATION,AVE)

Glff 5.50, AUTHORITY-PAS 15=32 02.0 43a500H 127.000M 5.70ML Ch ORIGINAL DATA SOUILCE i= EPB 397 25 MAY 1948 398 3 hUG 1948 12 00 00.0 47.537N 121.810M Ll V R St?QQUALMIE FALLS 399 7 hUG 1948 02" 05 00 0 ~ 46o662>tl 122 963M

~ M III R C})Et)ALIS

'00 28 AUG 1948 22 ~~-00.0 47.957H 117.475M M IV R DEER PARI( ~ 2 MI E OF DENISOH 401 24 SEP 1948 2>2=m~-oo.o 47.NQ? 1>'?.587Ll M VI R PORT GAlhlC.E 402 25 OC'f 1948 19 50 QQ ~ 0 47.842H 120.013M M IV R CHELhtl 403 20 DEC 1948 16 18 00.0 44.996H 120.215'M W IV BB FOSSIL> OREG 404 6 FEB 1949 19 00=00.0 46.440M 120.422M Ll III R MAPATO 9 ho5 15 MAR 1949 20-M-11 ' 45.500H 117.000M h. SOML Ch ORIGINAL DATh SOURCE >i EPB MAGt!ITUDE - 4.8O na6 2n MAR 19ni7 20.-'.a,-.56. o 42.000H 126.000M HO REPOITCED. FELT IHFORMATION 6.20H'.

ORIGINAL'ATA SOURCE GUT MAGHXTUDE(FRACTIOt?h) HOlhTIOH,AVE) 6 ~ 20, AUT))ORITY-PAS O

407 28 tLAR 1949 19" 43 16.0 42.000H 126.000Ll OatlL Ch ORIGII'?AL DATh BOUC(CE > EPD 408 30 MAR 1949 20"-28:28.a 49oaooN 127.500M h. 80ML Ch ORIGINAL Dh'Ch SOINCE ~

~ 4.80 ML EPI'AONIlllDE 409 1 APR 1949 . 16 45.45.0 .43.500N 126.000W 4 o 90tLL Ch ORIGINAL DATh SOUC?CE i- EPB

()i) 410 13 APR 1949 19-% 43oo 47.%> QH 1>>.500M vIII'.aotl HO REPORTED CASUS TIES ORIG>INAL DATA SOURCF ~ GUT ISOCEIS)IAL MAP PURL.ISHED RY USE t&GHITUDE(FRACTIONAL NOTATION i AVE)~7. 00> hUT'HORITY-PAS hll 1 JUH 1949 08 23 15.0 47,500H 124.500W 4.00ML Ch ORIGINPJ DATA SOURCE MAGiHITUDE ~ 4.00 ML EPB 412 24 N)G 1949 06 07 15ao 43o500H 127oaaaM 5.5aH' NO ORIGIt?CL. DATA SOURCE >-. GUT MAGHITL)DE(FC?ACTIOHAL HQI'ATIOH hVE)=4.50> AUTIIORITY-PAS 9

413 27 SEP 1949 Qlth5 00.0 . 47ah20N 120.317ll M IIX R MEt?ATCt)EE 414 2Q OCT 1949 16 00 00.0 48.500H 120.500M Ll IV R LOS'C RIVER i t!ECB MA7AVI 415 29 tlOV 1949 13-03-00.0 h7.600H 122,500L) M IV R SEA'CTLE-RREMERTOH 416 2 JAH 1950 05.-02:03.0 43.oooN I~w.aoou 4,20ML Ch ORIGINAL DATA SOUtmE EPB MOODWARD-CLYDE COHSUI TAHTS 23 APR 01

'0

~

uoonuhRD-cLYDE cot,'m.Thtfrs 23 APR 8' I\

PAGE 21 CAT. DATE TINE(GNT) LAT LOHG SL ItffEN MAG SM H DIS 0 8 LOCAT ION AtlD COMMENTS NO. DAY-NO-YEAR HR-MIN-SEC (NN) (KN)(KN) 417 27 JAR 1950 10-47 18.0 42.000H 125.000M 4,70NL Ch ORIGItlhL DATA SouhCE EPD 418 ll FEB 1950 02"10 00.0 47 '92H 114 888M

~ IV UE SUPERIORr Notff.

419 8 MAR 1950 06.25 00.0 47.662N 120.223M LI IV R EHTIhf' 420 ln APR 1950 11 03 48.0 48.000H 122.500M VI FELT OVER 7 r 000 SQ o NI ~

421 25 APR 1950 22 38 07.0 43.500H 127.500M 4 '0NL Ch ORIGIHAL DATh SOuliVE i". EPD

. 16 NAY 1950 LT 48.50oR I~~.ooau u III LIG MHATCOM ARD SKAGXT TINE REPORTED AS LT CO. ~ MNN.

423 19 Jl)H 1950 18 30 13.0 44.000H 127.000M 4. 20NL =-

Ch ORIGIHAL DATh SOUPiCE ri EPB 424 25 JUH 1950 23"45 00.0 47.491H 117.575M M IV R CHEt~Y 425 24 AUG 1950 17.45:34 ' 42.500R 126.000LI 5. 60tIL Ch ORIGIHAL DATA SOUPiCE ~ EPB 31 huG 195o 18=47-.43.o 42.ooaN lm.ooou 4.20ML Ch ORIGINAL DATA SOUfiiE ~ EPD 2

427 I

18 OCT 1'930 2 I3 II LT 02=30 nn.5ooR 116.aoou v EH CASCADEg IDAIIOi FELT LOCf'J LYI SERIES OF MINOR SHOCKS g

~

0 '"30r 07 oor 10 30'ND 15 30 LTe

'8 OCT lr50 07- LT 44.500H 116 aoou

~ V EH CASChDE ~ IDAIIO~

429 18 OCT 1950 10.30"LT 44.500R 116.000M V E)I CASChDEg ILIA)la.

Q =

pro 18 OCT 1950 15=30 LT 44.500H 116.000M V EH CASCADEr IDAHO.

'28 433 434 3 DEc 195o 16 DEC 1950 n JAR 1951 7 JAN 1951 01::v=00.o 10 49 01.0 13:n5=oo.o 22" 45.00,0 n7.9n7R 1~.300M u 43.500R 127.000M 47.70oR 12a.ooou u' 45.900R 119.200Ll Ml V v 2.50NL 4 s50NI-R Ch R

NUKILTE0 ORIGINAL DATh SOURCE ~ EPB CIIELAH-uhfERVILLE DD NCHARYg OREG (BB NAP)

Q 435 29 JAR 1951 05 43=47oo 43.000H 128oooou 5.oaNL Ch ORIGINAI DATA GOOIER:E EPB

, 436 14 FEB 1951 00 ' 40.0 44 oool'I 127 000LI

~ ~ n.aoNL Ch ORIGIHhL DATA SoufiCE r- EPB 437 20 JUL 1951 07 45 00.0 48.052H 1~.175M M "III R NARYSVILLE 438 8 NIG 1951 22 48"40.0 44.000tl 128,000M 4.20NL CA ORIGIHN DATA SOUSE i= EPB 17 AUG 1951 23 40-44.0 49.220H 122 '00M 3. OONL Ch ORIGINAL DATh SouliCE i-. EPD tLÃiHITUDE ~ 3 00 NL

~

8 nno 23 AUG 1951 07~54-07.0 48.500R 124 '70M 3. OONL Ch ORIGIHAL DATh SOURCE i- EPB NAOHITLIDE = 3.00 tIL

~

MOODMAMt-CLYDE CONSULTANTS 23 APR 81

'ryW'.if~'.f I

ii'A(V i '>fr res 22

~ I

6 MOODMARD-CLYDE CONS>LTA)IT8 23 APR 8~>

0 PAGE 22 CAT. DATE TINE(GHT) LAT LONG SL INTEH HAG SH tl DIS 0 8 LOCATIOH AHD COMHEHTS NO. DAY-NO-YEAR IIR-Mitt-SEC (HN) (KH)(KN) 441 6 SEP 1951 04 "28 37.0 48.680H 123o380M 3. 00HL Ch ORIGINAL DATA SOURCE EPB MAGNITUDE .- 3.00 HL 442 ll SEP 1951 15 19 20,0 48.200H 114.000M M IV UE 3 Ol 4 HIHOR OUNCES FELT BY DEER PARK CO)(MUNITY tiOHT 443 2:? SEP 1951 10 16 51.2 48 '20H'127.790M . 4.50IIL Ch ORIGIHAL DhTh SOURCE EPD HAGNITllDE = 3.00 HL 444 7 OCT 1951 11t59"31.0 47.670H 12> 3~ 500M 3. 00NL Ch ORIGIHAI DATA SOU~i >i EPD MAC>HITUDE ~ 3.00 HL 445 9 OCT 1951 ~-59-27.7 48.180H 1%.770M IV B HO P~R'fED FELT IL>'Of?tIATIOH I.IYPOCEtITER/EPXCEtflER DETERNINED BY BERKELEY ORIGIHf'J DATA SOURCE ~ USE 446 13 OCT 1'951 1'9 45=06.0 43.500N 127 000M

~ 4.50ML CA ORIGXIIAL DATh SOURCE ii EPB 19 447 4 HOV 1951 03"36 xls0 48eOOOH 124e000M 3. 00111 Ch ORIGI)W. DATA SOUIKE ~ EPB HAC>HITUDE = 3.00 HL 448 11 HOV 1951 11 00"00.0 48.767M 114.280M IV UE POLEDRID(IEp MOHT ~ (AMAKFHED OBSERVER)

(BETMEEN 1100 AHD 1130)

Q 449 26 DEC 1951 06 31 46.0 43s500H 127.000M 4o30IK Ch ORIGINAL DA'fh SOURCE = EPD

' 4'0 4 JAH 1952 04 00-00.0 47.813H 114,605M XV UE FELT HXARADhe MONT.

hfi 1 29 JAN 1952 23-.45.-45.0 43.500H 127,000M 4. 20tIL Ch ORIGINAL DATh SOURCE . EPB 4fi2 6 FEB 1952 14 04=07.0 49.070M 122.320M 3.50ML Ch ORIGItlh'ATA SOIIRCE ~

EPB MAGHIlTIDE ~ 3.50 HL 20 FED 1952 19.-07.-07.0 48.700H 123.200M XV FELT OVER 7,000 SO ~ Ml ~

9 454 '>1 FEB 1952 00=00 00.0 48.517H 122.175M M III R LOPEZ 455 FEB 1952 0'9-39 31.2 48.600H 123.100M V R FELT OVER 7g000 SQ. MI ~

Q 4fi6 2 tIAR 1952 00 11 54.0 49.170H 12> 3.970M 3 00)IL a Ch ORIGIHAL DATA SOURCE ii EPB MAGNITUDE 3 00

~

457 4 HL? 1952 19 42 00.0 47.672M 117o405M M V R SPOlQQK 4'.i8 14 HAR 1952 14 59 36.4 48.600M 123 100M

~ IV O 459 21 HAR 1952 04-41 43a0 48 680M 12>3eb30M

~ 3. 00NL CA ORIGItQL DATA SOURCE ~

~ 3.00 HL EPI'AGtIITUDE o[

460 22 HAR 1952 02-01-36.2 47.700M 1>>.400M III MOODMARD-CLYDE CONSULTANTS 23 APR 81

6 WOODMARD-CLYDE COHQJLTAtffS 23 APR ~ tlotff. StlARP 465 16 hPR 1952 22-25=41.0 48.320H 1'23.220M 3.00HL CA ORIGIHAL DATA SOl)RCE ~ EPB HAG>>ITUDE 3.oo N f ~

466 1 HAY 1952 20-"12-"37.0 48.35QH 123.470M 3 ootiL a Ch ORIGIttAL DATA SOUR(X EPB 8 HAGtlITUDE = 3.00 HL 467 19 HAY 1952 18-"36-12.0 48.270H 123.580M 3 'AHL CA ORIGIHAI DATh SOURCE ' EPB 0 tlhGHITUDE ~ 3.50 HL 468 23 Jut) 1952 23"52'43.0 4'9.200H 123.900M 3. 00I'lL CA ORIGINAL DATA SOURCE - EPB 9 HAOtlITUBE 3. oo N 4 Jl)L 1952 2 P?54-00. 0 49.500H 121.500M Ch ORIGIHAL DATA SOl)RCE ~ EPB HAGHXTUDE ~ 3.50 N 470 15 JUL 1952 Io:o8:oo.o n9.9ooH 124.250M 3. OOYiL Ch ORIGItlAL DATh Sol)RCE ~ EPB HAGHITUDE ~ 3.00 HL 471 26 JUL 1952 14.13 51.0 49.330H 123,750M 3. OOHL Ch ORIGIHAL DATA SO()fiiE ~ EPD HAGtlITuDE 3.oo N.

n72 27 JUL 1952 19"52"<<16 F 1 47.800H 121,900M ~

IV R SEATTLE MACHL 473 27 JUL 1'952 20 14 00.0 47.800H 121 900M

~ IV R SEA'nLE We'll.

474 6 huG 1952 17 31 00.0 47.500H 122.400M V R 2o AUG 1952 15 25-04 0 43.250H 126.500M HO ORIGIHAL DATA SOUlKE ~ Glff

~

6.50k'.ootiL t)AGHITUDE(FRhCTIOLnL HOTATIOH,AVE) 6.'50 ~ AUTHORITY-PAS ,

0 476 21 hUG 1952 09 44-48.0 43.000H 127.000M CA ORXGIHAL DATh SOURCE r: EPB 477 21 AUG 1952 19 08=30.0 43.500H 127.000M 4 10I L

~ Ch ORIGItlAL DATA SOUf(CE i- EPQ 478 9 ~~ 1952 09 30 00.0 48.698tl 116.315M IV uE FEL'r BotlHERS FERm, IDhtlo AHD VXCXtlXTY SEVE(%L AMAKEt~~ HEARD RUHBLIHGS 9 SEP 1952 09-"45-00.0 48a698H 116.315M IV UE FELT BOHHERS FERliY IDAllO AHl) VICIHITY MOODWARD-CLYI)E COHSULTAHTS 23 AF'R 81

fl e MOODWARD-CLYDE CONNILTAtITS 23 APR le ~

e PAGE 24 CATe DATE TIME(GMT) I.AT LONG SL IHlEN MAG SM H DIS 0 8 LOCATIOH AHD COMMENTS tlO. DAY-MO-YEAR HR-MIN-SEC (MM) (KM) (IOI) 400 22 &P 1952 07=21-"46 0

~ 40.550N 122.050M 3. OOIIL CA ORIGINAL DATA SOURCE ~ EPB MAGNITUDE = 3.00 ML 481 4 OCT 1952 12:18 17.0 49.930M 123.970M 3,00ML Ch ORIGIHAL DATA SOURCE e= EPB Qi MAGHITUDE = 3.00 N.

402 7 OCT 1952 07 03-~M .0 42.000M 127eOOOM 5. 40ML Ch ORIGIHAL DATh SOURCE ~ EPB 403 7 OCT 19'.i2 07.30 32,0 n2.000M 127.000M n.50IIL Ch ORIGltIAL DATA SOUPeCE e ~ EPB 404 7 OCT 1952 08"43-57e0 42eOOOH 127.500M 4. 60ML Ch ORIGItthL DATA SOURCE . EPB 405 11 OCT 1952 10:06=00.0 49.000N 119.500M 3 '0ML Ch ORIGINAL DhTA SOURCF ~ EPB MAGNITUDE = 3.50 ML n06 21 OCT 1952 21 10 33.0 40e700N 1>&.200M 3e00ML Ch ORIGIHAL DATh SOURCE ee EPB tlhGtIITUDE ~ 3.00 N 407 20 OCT 1952 15 55 27,0 40.700M 123.300M 3. 00tlL Ch ORIGIHAL DATA SOURCE = EPB MAGNITUDE --. 3.00 ML 400 10 IIOV 1952 22-54 00e0 47 600H 121e900M

~ 3. SOILS Ch ORXGINAL DATh SOURCE EPB MAGHITUDE -- 3.b0 ML 409 19 HOV 1952 12.20:00,0 40.530H 124.020M 3.0ON Ch ORIGIHAL DATh SOURCE c-. EPB MAGHIT(IDE = 3.00 ML

'90 20 HOV 1952 21-31 00e0 40.900M 123.930M 3. OOML Ch ORIGINAL DATA SOURCE ~ EPB MAGHITUDE = 3.00 ML 491 10 DEC 1952 13 55 00e0 50.600M 122.700M 3.50tlL Ch ORIGINAL DATA SOlJRCE ~ EPB Q MAGNITUDE = 3.50 ML 492 0 JAN 19b3 OJ >6 04 '0 47.500N 124.500M 3e00N Ch ORIGINAL DATh SOURCE ~ EPB 8 MAGHITUDE e- 3.00 ML 493 20 JAH 1953 06 54-05.0 40.700N 1>Me100M 3. OON Ch ORIGIIIeLL DATA SOURCE e= EPB 0 MAGNITUDE ~ 3.00 ML 494 3 FED 1953 11 10 33.0 50.300H 116.920M 3. OON Ch ORIGINAL DATA SOURCE ~ EPB 6 IIAOtIITUBE 3 00

~ N 9

495 21 FEB 1953 ll 26 00.0 40.SION 123.730M 3.00ML CA ORIGItJeeL DhTh SOURCE e.

tIAGtIITUDE = 3.00 N EPP.

496 24 FED 19M 19 39-05e0 47e597H I'+~.330M M . IV R SEATTLE Q

497 2"i FED 1953 09 29'00' 48.630N 123.120M 3,00ML Ch ORIGINAL DATh SOURCE EPD

, MAGIIITUDE = 3.00 ML MOODWARD-CLY1)E CONQILTANTS 23 APR 01 6

WooliMARD-CLYDE CO)ISULTAIff8 23 APR PAGE 25 CAT. DA'IE 'IHE(GHT) LAT LONG SL ItffEH HAG SH H DIS O S LOCATION AtID COHHEHT'S HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH) 498 22 tlhR 1953 20"15-57.0 48.870k 125.250M 3 ~ QQYiL ORIGIHAL DhTA SOURCE EPD Q HAGHITUDE ~ 3.00 HL 499 6 APR 1953 18 28 20.0 42.400H 1~+o900M 3 60YiL

~ ORIGIHAL DATA SOURCE ~

EPB 500 10 APR 1953 11 "07"00 0

~ 46.933k 124s083W W IV R GRAYS tlhRBOR 501 27 APR 1953 15 30-00.0 nbsb07tt 121 '70M M III R PACKIJOOD 502 27 HAY 1953 09 30=00.0 48.500H 122e235M M IV R SEDRO-MOOLLEY EPICENTER ABOIJT 15 HI. NORTHLIEST OF SEDRO-MOOLLEY.

503 11 JIJH 1953 23 37 32.0 49.820k 1~Mo870W 3. QQYiL CA ORIGINAL DATA SOURCE - EPB Hl%NITUDE ~ 3.00 HL 504 5 JUL 1953 13 ~'07.0 '8s250H 124.300M 3. QQHL Ch ORIGIHAL DATA SOURCE ~ EPD HAGHITUDE = 3.00 HL 505 8 JUL 1953 03"01 15.0 42.nook 119.100M 3. 50HL CA ORIGItNI DATA SOLICIT.'E EPD ei Sob 11 JUL 1~ 08 13:30.0 48.230k 1~>.870M 3 SQY 507 2> .JIJL 1953 10-17 3'9 0. 48 500H '128.000M

~ ~ 3,60HL CA ORIGINAL Dh'fh SOURCE ii EPB HAGNITUDE ~ 3.60 HL

'9 508 2? JUL 1953 10 37"-20.0 48.500k 128aooQW 3. SolnL Ch ORIGIHAL Dh'fh SOURCE i ~ EPB HAGHITUDE ~ 3.50 HL SO9 8 AUG 19m 09=:e=LT 48 o QQQN 114. QQQM 'VI EH FLATtIEAD LAKES'otff.

510 10 AUG 1953 11 22-25.0 48.830k 1>M.920M 3 a QQHI Ch ORIGIHAL DATA SOIJRCE EPD HhoitIITUDE ~ 3 00 HL

~

511 20 AUG 1953 18.32 41.0 47.800k 123.800M 3. QQIR. CA ORIGINAL DATA SOURCE ~ EPB tlAGHITUDE ~ 3.00 HL 512 9 SEP 1~~ 09 30 00.0 48.698k 116.315LI IV UE FELT Bok)KRS FERRY'DA)IO 513 28 SEP 1953 06-41 41.0 44.500k 128.000M 4.3QHL Ch ORIGItIAL DiÃfh SOIJfiiE ~ EPB HAGHITLIDE = 4.30 HL sin n ocT lorn 19:nl.-ln.o so.oootl 123.sooM 3.00HL CA ORIGItIAI- DATA SOURCE EPB HAGtIITUI)E = 3.OO HL 515 lb DEC 1953 04 32 12.0 45.)QQH 122.700M EH VI BD PORTLAND'REG 516 20 DEC 1953 'll ~w'-33.0 48.600k 121 ~ OQQW 3. QolnL CA ORIGIML DATA SOIJRCE HAGHITUDE ~ 3.00 HL

~. EPB

' ., 517 23 DEC 1953 11 45=03oo 42.500k 127. 10QM 3,70HL CA ORIGItlhl DA'rh Sour'CE =. EPB MoofiMARD-CLYDE CONSULTANTS 23 APR Ol

0 r Q

'OOBMARB-c

~

~ YDE CONSULThtrrs 23 APR~>~

(.;

PAGE 26 DA'I'E SL IHTEH DIS 8 LOCATION hHD COHHENTS CAT.

NO.

TINE(GHT)

DAY-HO-YEAR HRMIH-SEC LAT LONG (HH) 'KH)(KH)

HAG SH H O 518 3 JAN 1954 09 48 33,0 43.000H 125.000W n.sot(L Ch ORIGINAL DATA SOUf(CE = EPB 519 3 Jhtt 1954 11 "14 "52,0 43.000N 125.000M 4. 90HI Ch ORIGXNAL DATA SOURCE EPB 520 7 JAN 1954 21 39 47,0 42.500N 125.900M 3.bot CA, ORIGINhL DATA SOURrE EPD 521 26 Jhtl 1954 23 10 55.0 49.270N 123.030M 3. Oot(L Ch ORIGINAL DATh SOURCE ~

6 HAGtIITUDE 3 'O 522 FED 1954 03 33 19.0 43.000N 114.000M n. 40HL Ch .ORIGINAL DATA SOURCE EPB 1

9 523 7 FED 1954 10-.40:39.0 n8.75oN 123.53ou 3>>00tIL Ch ORIGINAL DATA SOIJRCE ~ EPD tIAGtIITUBE 3 OO t(L 6

~

524 16 HAR 1954 15"56 09.0 4/>>100N 121 soou

~ V M NO REPOliTED FELT IHFORHATION ORIGINAL DATA SOURCE ~ USE PARAHETERG OF EPXCEtrfER FROII Utlzv. WASHINGTON p SEhTTLE O 525 25 HAR 1954 21 16 35.0 "48.23QN 1+M.670M 3. OOHL Ch ORIGINAI DATA SOIJRCE>>-.

tlAGNITUDE ~ 3.00 HL i-.

526 25 HAR 1954 21:31:oo.o 49,280N x~m.750M 3.00HL Ch ORIGINAL DATh SOURrE EPB 9 HAGtIITUOE ~ 3.00 HL 527 '0 HAR 1954 05 29 18>>0 48.920N l>M.270M 3. OOHL Ch ORIGIIIJ>>L DATh SOURCE HAGNITIIDE ~ 3.00 HL 528 4 PER 1954 12 42 29 ' 48.520N 124.530M 3 ~ OOHL Ch ORIGZNJJ. DATA SOURCE-tlhst! IT(IDE 3. OO 529 5 JJ R 1954 19-.m:ss. o ns. oooN 128. ooou h. 30ViL Ch 'ORIGINA! DATA SOImE EPB HhotlIlllDE ~ 4.30 HL 530 1> hPR 195> >3 3~ 00 0 49 200N

~ I~. loou 3. OOViL Ch ORIGIHAI DATA SOURCE n HAGNIllJDE ~ 3.00 HL EPB 531 li APR 1954 19 20-00.0 49.370N 120.580M 3. 50!(L Ch ORIGINAL DATA SOURCE HAGHITUDE ~ 3.50 HL i= EPB 532 23 APR 1954 19 19 26.0 45.100N 122.900M n.oot(I Ch ORXGltlAL DATA SOUliCE >

tIAGNITUDE ~ 'l.oo HL 533 5 HAY 1954 01 42 00.0 47.300N 122.400M h. 30HL Ch ORIGItIJ'ATA SOUricE i= EPB O HAGHZTUDE ~ 4.30 ViL 534 10 HAY 1954 05 11 00.0 50.300N 124.700M 3. OOHL Ch ORIGINAL Dh'fh SOIJRCE ~

HAGNITUDE ~ 3.00 HL 5'5 15 HAY 1954 13 02!32.0 47.400M 1'+>.500M 5,00tIL Ch ORIGXNJ'A'rh SOU!iiE ~ EPE tIAGNXTUBE 5.OO t(L MOOBMARD-CLYDE CONSULTANTS 23 APR 81

0 MOODMARD-CLYDE COHSULTAICIS 23 APR~

PhGE 27 CAT. ~

DATE TXIIE(GHT) LAT LONG SL XNTEN HAG SH N DIS 0 8 LOCATIOH AHD COHHEHTS HO. DAY-MO-YEAR HR-HIH-SEC (HH) (KH) (KH)

Q 22 HAY 1954 12-47-00.0 40.200M 124.600LI 3 00N

~ CA ORIGIHAL DATh SOURCE ~ EPB HAGHITUDE ~ 3.00 ML 537 23 MAY 1954 13 41 42.0 40.342H 120o137M M V R TMISP 538 3 JUH 1954 07 0.00.0 40.000H 123.500tl 3. 00HL CA ORIGINAL DATA SONiiE ~ EPB MAGHXllIDE ~ 3.00 HL 539 0 JUH 1954 00:16=13.0 47.. 00N 116.000M . V UE FELT MOliTAERH~ IDAIIOt COEUR D'ALEHE AHD KELLOG 540 5 JUL 1954 01 13"00.0 40 000H 127

~ '00M 3.00>u Ch ORIGINAL DATA SOURCE ~ EPB HAGHITUDE ~ 3.00 HL 541 15 JUl 1954 21 43=00.0 49.000H 122.200M 3. OON Ch ORIGIHAL DhTA SOI¹CE ~ EPB MAGNITUDE ~ 3.00 HL 542 16 JUL 1954 19 40-37.0 49,180H 123.970M Ch ORIGINAL DATA SOUliiE < EPB MAGNITUDE ~ 3e00 ML 543 21 JUL 1954 02"17 35.0 50,150H X>&.700M 3sOOHL Ch ORIGINAL DATA SOURCE ~ EPB MAGNITUDE - 3.00 N.

544 1 AUG 1954 17 21 59.0 40.650N 123,330M 3. OON Ch ORIGIHAL DATA SOURCE ~ EPB MAGNITUDE ~ 3s00 HL 545 2 AUG 1954 07 23 53.0 40.420H 1>M.GOOM 3.00ML Ch t)RXOIHAL DATA SOUCiiE ~ EPB tlAGHITUDE ~ 3.00 N.

5 AUG 1954 10 26"56.0 40 000H 122.950LI

~ 3. 00HL Ch ORIGIIIAL DATA SOURCE ~ EPB IIAGHITLIDE ~ 3 00 HL

~

547 1 SEP 1954 12 42 00.0 40.200H 123.000M ' Ch ORIOIHAL Dh'CA SOURCE ~ EPB HAGHXTLIDE ~ 3.00 N.

548 4 SEP 1954 21 49 00.0 40.730H 121.750M 3.00N Ch ORIGINAL DhTA SOURCE EPB HAGHITUDE = 3 00 HL

~

549 15 SEP 1954 03 37 00.0 40.800H 121.500M 3. OOML. Ch ORIGINAL DATA SOL)CXE ~ EPB MAGNI11IDE ~ 3 00 N

~

550 20 OCT 1954 13:09 10.0 40,195H 114.313M XV UE FELl KALXSPELL~ Ht)ICC. (MOUSE S)IAKEH STROHGLY) 551 3 HOV 1954 05" ~~"-00.0 4'00M 123.000M 3. OON Ch ORIGIHAL DATA SOURCE ~ EPB 0 I3AGHITUDE ~ 3.00 HL 552 8 HOV 1954 02 52"29.0 40s670H 1~M.100M 3. OOHL Ch ORIG1HAI DATA SOURCE ~ EPD MAGNITUDE ~ 3.00 ML 553 li HOV 1954 22 15 12.0 46.608N 123.732M M IXI R RAYIIOHD 554 11 HOV-1954 22 "30 00 0

~ 46.608M 123.732LI M XII R RAYHOND MOODMARD-CLYDE'ONSULTANTS 23 APR 01 Ph'tl PG

'.'!j 8 6 (JOODMARD-CLYDE CONS(ILTANTS 23 APR ~~

V I

PAGE 28 CAT. DATE - TINE(GHT) LAT LONG SL I)ffEN HAG SH H DIS 0 8 ,I.OCA1'ION AND COHHENTS NO ~ DAY-HO-YEAR HR-HIN-SEC (HH) (KH)(KH) 0 SSS 12 NOV 1954 23 31 00.0 48.300N 123.550M

3. OON Ch ORIGINAL DATA SOURCE EPB HAGNITllDE ~ 3,00 HL 556 20 NOV 1934 10"13-00 0~ 48.850N 123.MOlJ 3,00N CA ORIGINA( DATA SOURCE ~ EPB HAGNITUDE ~ 3.00 HL 557 2 DEC 1954 09-06 12.0 43.500N 125.000M 3. OOHL CA ORIGINA( DATA SO~i. ~ EPB 558 3 DEC 1954 08 46 02.0 44.000H 127.000ll 3. 60HL Ch ORIGINAL DATA SOURCE - EPB ac9 11 JAN 1955 10t20 11.0 47.970N 1>M.830M 3. 10HL Ch ORIGINAL DATA SO(IR(:E ~ EPB HAGNITUDE ~ 3.10 N.

6, 560 3 FEB 196Ti 03?10 16.0 44.500N 128a000M 4. 70HL Ch ORIGINAL DJYfh SOURCE ~

HAGNITUDE ~ 4.70 HL EPB 561 6 FEB 1955 LT 47.967N 119.000(J M IV MG GRAND COUI-EE MASII. LOCALLY FELT ONI Y.

TINE REPORTED AS LT 562 27 FEB 1955 20 55 00.0 51.400N 125.300W 3.50N Ch ORIGINAL DATA SOURCE ~ EPB HAGHITUDE ~ 3.50 HL 563 20 HAR 1955 14-42-16 0~ 48 '00N 127.300M 3mlOHL Ch ORIGIIJAL DATA SO(~i ~ EPB HAGNITUDE ~ 3.10 N

' S64 26 HAR 1955 06"55 50.0 48.050N 122.033M VI M NO REPORTED FELT INFORHATION ORIGIN(AL DATA SOURCE = (ISE ISOSEIS)(AL HAP PUBLISHED BY USE PARAHETERS OF EPICENTER FROH UNIV.. MASHINGTON SEATTLE SNi 26 APR 1955 00-13 12.0 48.850N 122.980M 3. OOHL Ch ORIGINA( DATA SOUR(:F EPB O I(AGNITUI)E ~ 3.00 HL 566 lb HAY 1'955 03 01 27.0 47.800N 125.300M 3. OOHL Ch ORIGINAL DATh SOURCE < EPB HAGNITUDE ~ 3.00 HL 1

567 31 HAY 1955 23-35>>00.0 47.680N 11be773M IV FELT COEUR D'ALE)JEy IDAIIO O HF'(VY JARA'ELIEVED TO BE AH EARTHQUAKE 568 1 JUN 19M 04"-56-00.0 49.480N 114.631M V UE HO)ffhNA Q SIIARP AT TRIDENT CAUSING HOST PEOPLE TO LEAVE NONES Sf 9 4 JUL 19~> 15 05 52.0 51.100H IM.BOOM 3. OON Ch ORIGINAL DATA SOURCE ~ EPB HAGNITUDE ~ 3.00 N 570 5 JUL 19'7 52 10.0 -48.720N 123.550M 3. OOHL CA ORIGINAL DATA SOURCF HAGNITUDE 3.00

~ EPB S71 22 JUL 1955 17 33 25.0 48e600N 121.800M 3 00(iL

~ CA ORIGINAL DATA SOURCE ~ EPB HAGNITUDE m 3.00 HL MOODMARD-CLYDE CONSULTA)ffS 23 APR 81 Phf'.C. 9t) ~~

6 WOODWARD-CLYDE COH~MLThtffS Ti ~~

PAGE '29 CAT. DATE TINE(GIIT) LhT LOHG SL IHTEH HAG SH H DIS 0 8 LOCATION AHD COHHEHTS HO ~ DAY-HO-YEAR HR-HIN-SEC (HH) (KH) (IGI)

I 572 23 JUL 19R3 19 02 34eo 47o700H 123.300M 3. 00)IL ORIGINAL DATh SOURCE ~ EPB PJAGIIITUDE ~ 3.00 HL 573 29 JUL 1955 13 35 1~ 0 48.300N 1~~.900M 3. 00)IL Ch ORIGIHAL DATA SOURCE ~ EPB tIAOtIITUDE .= 3.00 IIL 574 575 21 AUG 1955 23 AUG 1955 12=34=09.o 15-"32=40.0 44.5ooH 12o.ooou 43 '00H 128.000M 6.

~

25H'h 3 00HL Ch ORIGIHAL DATA SOURCE HO tIAGtIIllIDE ~ 3.00 HL ORIGIHAL DATh SOURCE ~ CGS EPB tIAGNIIIIDE(FRACTIO)IALNOTATION,AVE). 6.25 AUTHORITY-PAS O 576 10 SFP 1955 16 ';i2 45LT 48 '00N 124.600M V W HO REPORTED FELT IHFORtlhTION ORIGItIAL DATA SO(IRCE USE O PhfifAETERS OF EPICEtffER FRM UtlIV. W~IHGTOII~ SEATTLE 8 577 3 OCT 1955 11"-24-08.0 49 000H 127.oaau

~ 3,50tIL Ch ORIGI)IAL DATA SOURCE - EPB tlhGHITUOE ~ 3.50 HL 578 27 OCT 19M 18 09 37.0 48.150H 124a430M 3. OatlI Ch ORIGIHAL DATh SOURCE EPB LENITUDE ~ 3.00 HL 579 3 HOV 19% 01 40"26oI 48.100H 121 a700M V 9

580 '1 HOV 1955 ~=19-52.0 48.500H 1~+.420M 3. 00HL Ch ORIGIHAL DATA SOURCE ~

tIAGNITUBE 3.OO tIL EPB 581 6 DEC 1955 03-21 51 0 ~ 50.300N 123 600M

~ 3. 60HI Cfi ORIGINAL Dh'fh SOURCE ~ EPD tIAG)IITUDE ~ 3abo HL 582 12 DEC 1955 19 41 20.0 43.500H 127.500M 4,20tL Ch ORIGIHAL DATA SolRCE ~ EPB 0

583 15 DEC 1955 06.-52.-05.0 47.6ooH I~w.800M 3,00HL Ch ORIGIHAI DATA SOURCE ~ EPB HAGHITUDE ~ 3.00 tIL 584 7 JAH 1956 04 28 38.0 47.570H IM.430M 3. 50HL Ch ORIGI)IAL DATh SOURCE ~ EPB NAGHITUDE = 3.50 NL 585 10 JAN 1956 . 12.32 15.0 43.500H 127.000M 4.90tIL CA ORIGIHAL DATA SOUliCE ~ EPB 586 9 FEB 1956 00 57 14.0 48.700H 123.170W 3 10N

~ Ch ORIGINhL DATA SOURCE ~ EPB HAGtlITUDE ~ 3i 10 NL O 587 24 FEB 1956 22?00-00.0 47o900tt 119oloou W2 V R ELECTRIC CITY 588 8 8% 1956 22=28=13.0 48o530H 123o070M 3. 30HL Ch ORIGINAL DATA SOURCE ~ EPB 9 HAGHITUOE ~ 3.30 HL 8 589 26 APR 1956 16=48-"21.7 47.600H 122.300M III R SEA'rTLE, WASII.

WOODMARD-CLYDE CONSULTANTS 23 APR 81 PhrF 30

6 0

)

l e MOODMARD-CLYDE COHSULThtITS 23 APR l~ ~ ~

'I PhGE 30 CAT. DIXIE TIHF(GHT) LAT LOtlG SL IHTEH HAG SH II DIS I) 8 LOCATION AHD COHHEHTS ~;

HO ~ DAYWO-YEAR HR-HIH-SEC (HH) (KH) (KH) 590 27 N% 1956 16 16 41.0 49o300H 12no000M 3.00HL Ch ORIGINAL DATh SOURCE ~ EPD HAGHITlJDE ~ 3.00 HL 591 14 HAY 1956 17 04 24.0 50.600H 117.500LJ 3. BOtQ Ch ORIGINAL DATA SOIJI"CE EPB j HAGtIITUOE 3.80 IQ 592 18 HAY 1956 03 41-52 0

~ 45.000H 124.000W 3o70HL Ch ORIGIHAL DATA SOI¹f& ~ EPB HAGHITUDE ~ 3.70 HL 6 JIJL 1'956 02 22 00.0 42 '00H 126.000M HO ORIGIHAL DATA SOURCE ~ CGS HAGNITlIDE(FRACTIONALNOTATION,AVE)M. 00 AUTHORITY-BRK O 5.00N'.

594 6 JIJL 1956 08"13 10.0 42.300H 126s500LI 50IIL Ch ORIGINAL DATA SOUtee EPB 595 8 JUL 19'2 01=29.0 42.200N 126.370M 3. 90HL Ch ORIGINAL DATA SOUILCE =. EPB S96 1'i JIJL 1956 01 "~v"09.0 44 '00H 127oSOOM n.70tQ Ch ORIGINAL DATA SOURCE EPB 597 7 AUG 1956 04-05-52.0 '4.500H 115a000M n. 10HL Ch ORIbIHAI DATA SOURCE EPB HAGHITUDE ~ 4.10 tlL 598 12 AUG 1956 21 22 30.0 47,900tl 127.500M 3,40IQ Ch ORIGIIAL DATA SOURCE ~ EPB HAGHITUOE ~ 3.40 HL 599 lo AUG 1956 00:52=16.0 nn.000H 115,500M n. 40tQ Ch ORIGIHAL DATA SOUI Cf ~ EPB 600 1 SEP 1956 19 34 06.0 45.000H 128o000M n. 00tQ Ch ORIGIHAL DATA SOURCE ~ EPB HAGHITUDE 4.00 HL 601 17 SEP 1956 01 07 30.0 45.000k 128o000W n. 40)Q Ch ORIbIHAL DATA SOURCE EPB HAGHITUDE ~ ns40 HL 602 4 OCT 1956 07-30 27e0 50 800H 119o700M

~ 3. 30HI Ch ORIGIHAL DATA SN¹CE - EPB HAGNITUDE = 3a30 HL 603 . 8'OCT 1956 01 49 36.0 48.400H 126.600M 3. OOHL Ch ORIGIHAL DATA SNJRCE ~ EPB HAGHITUDE ~ 3.00 HL 604 18 OCT 1956 07"15.27.0 42.500H 126.200M 4. 20HL Ch ORIGINAL DATh SOURCE ~ EPB 605 19 OCT 1956 23"58-30.0 42.500H 127.000M n. 70HL Ch ORIGIHAL DATA SOURCE - EPB 606 10 HOV 1956 18 09-18 0~ 42.500H 126ebOOM 3. OOIQ Ch ORIGINAL DATA SOIJRCE ~ EPB 607 23 HOV 1956 02-51=40 0~ 42 ~ BOOH 126.400M 3. 20HL Ch ORIGItthL DATA SOURCE EPB 608 15 DEC 1956 09=50-00.0 46.145H 1Ã.912M LJ IV R KELSO 609' 26'AH IFZ/ 01 16 07.4 48.2'90H 122.600M 5. 00HL Ch ORIGINAL DATA SNJRCE ~ EPB HAGtlITUDE ~ 3.50 HL

~ 0 L!OODWAIG)-CLYDE COHNJLTAHTS 23 APR 81

8 O

0 MOODMARD-CLYDE CONSULTANTS 23 APR 8 A

PAGE 31 CAT. DA'fE TItfE(GtlT) LAT LOHG SL XHTEH HAG SH H DIS 0 5 LOCATION AND COHHEHTS HO. DAY-HO-YEAR HR-l4IH-SEC (HH) (KH)(KH)

Q 610 1 1 FED 1957 17 04 37 0~ 47 520N 121 770M

~ o 4. QQHL Ch ORIGINAL DATA SOURCE . EPR HAGHITUDE =- 4.00 HL A

bll 14 IVB 1957 11-'15"54.0 40a050H 122e470M 3elQHL Ch ORIGINAL DATA SOURCE ~

HAGHITUDE = 3.10 HL EPR 612 16 HAR 1F>/ 00~37=04.0 49.000H 124.350M 3. 70I3L Ch ORIGINAL DhTh SOURCE ~ EPB (t) HAGNITUDE ~ 3.70 ML 613 23 IVX 1957 00 00 00.0 44.302H 123.596M M III BB ALSEA ORFG 614 31 IVX 1957 02 23 05.0 43.500H 127a500W 4. QQHL Ch ORI(iXHAL DATh SOURCE ~ EPB O 615 13 hPR 1957 02 36-40.0 40.000N 120.000M 3. 60HL Ch ORIGINAL DATA SOURCE>>>> EPR HAGHITUDE ~ 3.60 HL bib 13 APR 1957 03 44-07sQ 48.300M 128aQQQM 4.0ON CA ORIGXHAL DATA SOURCE ~ EPB HAGNIT(IDE ~ 4.00 HL 617 4 HAY 1957 21 0/=25.0 47.350H 122,303W W HO REPORTED FELT IHFORt'lhTION

~f;,

ORIGINAL DATA SOURCE = USE Phf(METERS OF EPICE)?TER FROH UNIV, WASHINGTONt SEATI'LE 8 O 610 11 HAY 1957 QQW26 21.0 49.200H 115.000M .. 3.20HL Ch ORIGINAL DATA SnurCC-HAGHITUDE = 3.20 HL 619 14 HAY 1957 10 43 31.0 47.000H 115.500M 3. 40HL Ch ORIGINA DATh SOURCE ~ EPB MAGNITUDE = 3.40 ML 620 17 tlhY 19>I 10 41:LT 46.000H 114 ~ QQQM M2 V EH SOUTIIMESTERH HOHTAHA~

621 19 HAY 195/ 19"48 23.0 52.100H 127,700M 3.10HL CA ORIGINAL DATA SOURCE ~ EPB I'lhGNIlllDE = 3. 10 HL 622 7 JUL 1957 17.23:00.0 47,497tl 121.705M W IV R HORTII DEHD Cl 62>> 35 (lIG 1957 12 05 43.0 44 '00H 120oQQOM Ch ORIGINAL Dhlh SO(IRCE ' EPR MAGNITUDE ~ 3.90 HL 624 13 AUG 1957 14 36-15.0 43.00QH 125.000M 4.20N Ch ORIGINAL DATA SOURCE ~ EPR 8

625 14 SEP 1957 03 20=53.0 48o700H 12>> 3a950M 3,40N CA ORIGINAL DATA SOURCE ~ EPD MAGNITUDE m 3.4Q N 9

626 17 SEP 1957 06-37<<13.0 50.900H 125.100M 3.30N Ch ORIGINAL DATn SOURCE EPD MAGNITUDE = 3.30 N 627 3 OCT 19.>>/ 19.03-55.0 47.500H 127aQQOM 3. QQN CA ORIGIHAL DATA SOURCE>>>> EPD HAGNITUDE>>>> 3 00 ~ N 620 29 OCT 19>7 15 30-00.Q 46.070H 1~.260M M IV R Eh'I OHVILLE MOODMARD-CLYDE CONSIILTAHTS 23 APR 01

LJOODMARD-CLYDE COHSLJLTAICCS 23 APR 81 "~

PAGE 32 Pl CAT. DA1E TIILE(GHT) LAT LONG SL IRTEtI HAG SH N DIS 0 8 LOCATION AHD COtiHENT5 tIO. DAY-HO-YEAR HR-HIH-SEC (HH) (kH) (KI1)

Q I

629 1 HOV 1957 10 12 02.0 46.700R 121.500M 4.20HL Ch ORIGIHAL DACA SOURCE EPD I

HAGHITUDE ~ 4.20 HL 630 1 HOV 1957 10 32 27.0 47.500H 120.600M 3.30N Ch ORIGINAL DATA SOURCE ~ EPB C) PIAGtIITUDE ~ 3.30 HL 631 1 NPP IF'1)0".".33 ~ 0 46.400tl 1>+, 00LJ 3 '0HL Ch ORIGINAL DATh SOURCE HAGNITUDE 3.20 N EPB 632 16 HOV 1957 22 00-00.0 45.300R 123.800LJ 5. OOIK CA ORIGIHAL DATh SOURCE r EPB PJLGtIITUDE ~ 5.00 HL 633 17 HPd 1937 06 00-29.0 45.300H 123.800M 4.00HL CA ORIGINAL DATA SL)UI?CE ~ EPB HAGHITUDE ~ 4.00 HL 634 17 HOV 1937 06L01.34.0 45,000N 124.200M 3 ~ CA ORIGIHAL DATA SON%i.E ~ EPB 60'.

HAOHITUDE < 3.60 HL 63ti 29 HPd 19al 04-47 00.0 45e535R 122sb20M LJ III R PORTLAND'RE ~

636 1 DEC 1957 21~31:17.0 47. 00R 128.000M 30HL Ch ORIGIILAL DATh SOURW rl EPB HAGHITLIDE ~ 3.30 HL

'h 637 3 DEC 1957 13 47 56.0 51 600N 123.300M

~ 3 e ORIGItIAL DATh SOLJRCE ~ EPB 30',

HAGNITUDE = 3.30 HL 638 16 DEC 1957 17.-n=n7.0 50,000R 127.000M 00tiL Ch ORIGIHAL DA'Ch SOURCE ~ EPB HAGHI11IDE = 6.00 HL 639 18 'DEC 1951 23 25 00 0 47 '00H Ilbs000M 5. OOIM Ch URIGItlhL DhTh SOURCE ~ EPB HAGHITUDE ~ 5 00 HL 640 6 Jhtl 1958 00-00-00.0 46.750H 121.810LJ LI IV R LOHGI'LIRE 6 641 22 JAR 1958 12-'i9 31.0 nne500R 12na200M 3. OON Ch ORIGINA Dh'Ch SOL)RID ~

HAGtIITUDE F 00 N EPD 642 24 FEB 1958 14"51-61.4 47,690R 114.155M IV UE POI SOHp tLORT.

643 3 HJI( 19M 19 34=42.0 49.5708 123.720M 3oOOHL Ch ORIGIIIAL DATA SOURCE r EPB HAGHITUDE ~ 3.00 N bnn 12 HAR 1958 12 09 19.0 42,000H 119.500M no 50N Ch ORIGINAL DATA SOUC(CF ~ EPB 645. 13 HAR 1958 23 38 59. 0 49 100R

~ 1Ã a 200M 3. 00HL Ch ORIGINAL DATA SOURCE P'PD HAGNICUDE 3.00 N.

18 HAR 1958 13:30=nb.o 49.000II 122.n00M 3olOHL Ch ORIGIHhL DATA SOURCE - EPB ~

HAGHITUDE -- 3.10 HL 647 6 hPR 1958 05 56 49.0 44 '00H 126.000M 4.00tiL Ch ORIGINAL DATA SOURCE EPB C

MOODMJBD-CLYDE COI~~TA)CCS 23 APR 81 Q

0 MOODMARD-CLYDF CONSULTANTS 23 APR ~

PAGE 33 CAT., DATE TIME(GHT) LhT LONG SL INTEH HAG SH H DIS 8 S LOCATION AHD COHHEHTS HO. OAYw(0-YEAR HR-HIH-SEC (HM) (KH) (KH) 648 12 hPR 1958 00 00-00.0 47.900H 119 100M

~ M2 IV R ELECTRIC CITY~ TIHEp 01" OR 02 64') 12 hPR 19M 22 37-11.0 48a000H 120.000M 4. 10ML Ch ORIGINAL DATA SOURCE ~ EPB HAGNITUDE = 4.10 ML 650 7 HAY 19M llt03 28.0 48.630H 122.530M 3.30ML Ch ORIGINAL DATA SOURCE ~ EPB ORIGINAL'J MAGNITUDE ~ 3.30 HL 651 7 MAY 1958 17-28 01.0 45.100H 122.000IJ 3.40N Ch DATA SOURCE EPI>>

HAGHITUDE ~ 3.40 ML 652>>22 MAY 1958 20-"13:01.0 48.020H 121.600M 4.20ML Ch ORIGIHAL DATA MUNX ~ EPB MAGNITUDE ~ 4.20 ML 0

653 22 MAY 1958 21 55 37.0 48.680H 121.630M 3 aOON Ch ORIGIIJAL DATA SOURCE ~ EPB HAONITUDC ~ 3.00 HL 654 22*HAY 1958 22" 14-38.0 48.720H 122.020M 3. OOML Ch ORIGINAL DhTA SOURCE EPD mCNITUDE = 3.00 HL 655 23 MAY 1958 06 4')"47.0 44 500H 116ooaaM

~ IV UE M IDCJIO LIGIIT SHOCK FELT BY h NJMBER OF PERSONS IH BOISE 656 31 HAY 1958 21 "34 16.0 47.300H 127.000M 3. 10ML CA ORIGIHAL DATh SOURCE ~ EPB HAOHITUDE ~ 3 10

~ HL 657 1') JIJN 1958 11:52"46.0 44o500H 12S.OOOM 4.20HL Ch ORIGIHAL DATA SOURCE EPP HAGNITIJDE = 4 20 HL

~

658 10 JUL 1958 04:23 20.0 48.800H 122.400M 3.00ML Ch ORIGINAL DATA SOURCE ~ EPB MAGNITUDE ~ 3.00 HL 659 10 JUL 195S 19 04-18.0 47+330H 125s520M 3. OOHL Ch ORIGINAL DATh SOURCE ~

= 3.00 HL EPI'AGHITUDE 0

660 13 JUL 1958 01 41 52.0 47.800H 122 300M

~ 3 ~ 10'. CA ORIGINAL DATA SOURCE ~ EPB HAGNITUDE = 3.10 HL 661 6 AUG 1958 04 24 41.0 49.500H 127o700M ., 3.30M Ch ORIGIHJJ DATA SOIJRCE MAGNITUDE ~ 3.30 ML EPD 662 1) SEP 19M 02 18 36.0 47.'900H 1'++s700M . '.10HL Ch ORIGINAL DATA SOURCE ~

HAGHITUDC ~ 3.10 ML EPB 0

663 22 SEP 1958 07 35 00.0 46.760H 122.030M M IV R hSIIFORD 664 2) ~MP 1958 08"-M-37.0 42.300H 118. 100>>J 4e00l& CA ORIGINAL DATh SOURCE EPB 665 3 OCT 19M 00 00 50.0 47abOOH 124o500M 3eOOHL Ch ORIGIHAL DATh SOURCE ~ EPE>>

HAGHITUDE ~ 3.00 ML 9

MOODMJR9-CLYDE COHSULTAHTS CPA 81 6,

6

0

'OODMARD-CLYDE COHSUI TAltTS 23 APR ~r f

PAGE 34 CAT. DhTE T IHE (GHT) LAT LONG SL INTEH HAB SH H DIS 0 5 LOCATION At(D COHHEHTS t!O. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH) 7 OCT 1'950 05"07-56.0 47.400N 124.000M 3.30tQ Ch ORIBIHAL DATA SOURCE r EPB HAGHITUDE ~ 3.30 HL 667 7 OCT 1950 16 0') 41.0 44.000H 127.500M 4.70N Ch ORIGIHAL DATh SOUND = EPB 668 27 OCT 1958 07?39-45.0 47 1')2H 114.888M

~ IV UE SUPERIORr HOHT. (STROHBLY FELTr PEOPI.E AMhl(EHED)

LOUD XMHISIIINGX SOUND HEARD 669 '0 HOV 1950 22 15:00.0 45.500H 122.430M M III BD GRESlthH OREG St!OCK PROI'ABI Y CAUSED BY JET PLANES.

670 '>. DEC 1'950 17 8 28. 0 51. 100H 124.600M 3.20HL Ch ORIGIHAL DATh SOURCE ~ EPB HAGNITUDE ~ 3.20 HL 671 15 JAH 195') l9" 1C 24.3 4').850H 127.590M 4.20HL 8 - D TS STD ERROR 1.37 SEC ~ 10 STATIONS USED IN LOCATIOH.

67'8 JAH 1/59 17" 15" 03.0 44 000H 127.500M

~ 4.8ON Ch ORIGINAL DATh SOUl CE ~ EPD 6/3 21 JAH 195') 07 15"00.0 46o070H 118 328M

~ M IV R MAI.Lh MALI h

' EPB 674 FEB 1959 13 42-05.0 48 000H 128.000M

~ 3. 70tiL Ch ORIGIHAI DATA SOURCE HAGHITUDE 3. 70 HL 675 2O FED 1959 00-.!n:-.~r.a 42 'OOH 125.800M 3.40N Ch ORIGINAL DATA SOURCE EPB 676 '7.FED 195') 06:13 54.0 43 '00H 127.700M 3.')OH! ORIGINAL DATA SOURCE EPB 677 6 HAR 1959 1')-47-00.0 45.000H 120.000M 4 oatQ

~ Ch ORIBIHAL DATh SOURCE ~ EPD HABHITUI)E 4. ao N 670 17 HLR 195') l6"-19=1').0 43soooH 127.500M 4,20HL Ch ORIGINAL DATA SOLACE = EPB 6/9 20 M 195') 15-41-50.0 45.000H 126.000M 3,70N CA ORIGIHAI DhTh SOURCE HAGHITUI)E =* 3.7a N.

EPB

'9 - 680 21 HAR 195'9 20 38-55.0 4'OON 122,7OOM . , 3.2OHL Ch ORIGINAL DATA SOURCE EPB HAGHITUOE .= 3.20 N 681 10 HAY 195') 01 05 32 0 ~ 50.400H 115.100'M 3.00tu Ch ORIBIFIAL Dhl'h SOURCE EPB HABHITUDE .- 3. 00 HL 682 2 JUH 1959 10-4')-00.0 43./OOH ll'9,/OOM 4 . 70HL Ch ORIBIHAL DATA SOURCE EPD 683 12 JUH 1959 08 21 03.0 48./OON 127.200M 3. 10N Ch ORIGItthL DATh SOURCE EPB HAGNITUDE ~ 3.10 HL 684 4 JUL 1959 05:m:22.0 47.9ooN 1~m.080M 3. OOHL Cn ORIGINAL DATn SOURCE - EPB TUBE 3. ao N. .'AOFII 685 11 JUL 195') 15- LT 47.600H 119.300M M IV MB DEEP LAKES'ASFI.

l'IHE REPORTED BY USE MOODMARD-CLYDE COHSULTAtffS . 23 APR 81 Q

6

~ i i' MOO DMARD-CLYDE CONNJLTAtff8 23 APR ~

FACiE 35 CA'r. DATE TI/LE(Mf) LAT l ONL) SL ItfLEN HAG SH tl DXS 0 8 LOCATION AHD COHHENTS tJO. DAY-HO-YEAR HR-HIN-SEC (HH> (KH> (KH) 686 18 JUL 1959 12 19 05.0 49.500N 127 ~ OQOM 3 I 10HL CA ORIGINAL DATh SOURCE EPX!

HAGHITUDE ~ 3.10 HL 687 23 JLJL .1959 08 15 12IO 44 500H 124abooM n. 30HL Ch ORIGINAL DATA SOURCE EPD 0 ~

Q)GtlITUDE o 4.30 HL

'688 2 NJG 1959 0'9 35 52 ' 47.800H 126,400M 3.00HL Ch ORIGXNAL DATA SOUI CE EPD HAGNITUDE ~ 3.00 tLL o I',

689 AUG 1959 23t53 30.0 45.680N X~M.270M 4.70N Ch ORIGXHAL DATA SOLhXCE ~ EPB HAGNITUDE ~ 4.70 HL 6'90 6 hUG 1959 03 nn-32oO 47 '00N 119.900M n.noN Ch ORZGXNAL DhTA SOURCE ~ EPB HAGHITUDE ~ 4.40 HL 691 6 AUG 1959 04 36 10.0 47.800H 119.900M 3 90l<L

~ Ch ORIGINAL DATA SOLJRCE EPB HAGNITUDE o 3.90 HL 692 8 hUG 1959 19 06 59.0 43.500H 126 '00LJ 4.8oN CA ORIGINAL DATh SOURCE EPB 693 10 hUG 1959 05 13:30.0 42,000H 127,000M 4 30N

~ Ch ORIGItlhL DATh SOURCE ~ EPB 694 21 AUG 1959 00=28=17.0 n4.80otl 124.700M n ~ botLL Ch ORIGINAL DhTh SOURCE ~ EPB HAGHITUDE o 4.60 tLL 8 695 23 AUG 1959 23-11<<15 ' 48.400N I >>.500M 3o loN CA ORIGIHAL DATh SOURCE ~ EPB tLAGNIllJDE ~ 3. 10 HL 696 4 XP 1959 20-.r7-35.0 48.770H 123.300M 3a notLL Ch ORIGItlAL DATh SOU~i ~ EPB tLAGtLITUDE ~ 3.40

'9 697 -

26'SEP 1959 04 48 53.0 44.000N 128.000M 4. 00>LL Ch ORXGItlAL DATh SOLJIXCE ~ EPB 698 28 SEP 1959 ol 50.27.0 42.000N 127 ~ 000'M n. 10N Ch ORIGXtlhL DATh SOURCE ~ EPB.

699 4 Ol"f 1959 21-"40-"50.0 47.700N 123.000M 3. 30HL Ch ORIGItlhL Dh'fh SOURCE ~ EPB HAGHITUDE ~ 3 30 HL

~

O ~

. 700 9 OCT 1959 22-Mt02.0 42.600N 11'9.000M n. 40HL Ch ORIGINJ'ATh SOURCE ~ EPD 701 702 13 OC'f 1959 14 OCT 1959 07 30 29.0 43. 000H 1 19.

14:M-49.0 42.200H 118.400M 000M 4. OON

3. 90N Ch Ch ORIGINAL DATA SOL ORIGINAL DATh SOURCE Mi EPD EPB oI 703 14 OCT 1959 21 35 37.0 47.950N 121.770M 3. 90tLL Ch ORIGXILAL Dhfh SOURCE EPD HAGNITUDE ~ 3.90 HL 7On 27 OCT 1959 06 12 17.0 42.500N 127.000M 5. 13N'O ORIGIHAL DATA SOURCE - CGS HAGNITUDE(FRACTIONAL tlOTATION,AVE), 5. 13 AUTILOQITY-BRK r:,:-.

705 31 OCT.1959 19"22 24.0 44.000N 1'.000M n.ooN. Ch ORIGINAL DATh SOURCE EPB MOODMARD-CLYDE CONSULTAtffS 23 APR 81

@neer.

0 MOODIJARD-CLYDE CONSULTAHTS 23 APR 8~ ~ C

\

~ ~ ~ .

A PAGE 36 e CAT. DATE TINE(GIff) LAT LONG SL INTEN HAG SH H DIS 0 S LOCATION AND, COHHENTS NO ~ DAY"((0-YEAR HR-MIN-SEC (HH) (KH) (KH) 706 31 OCT 1959, 20 51 13.0 49.450H 126 '80M 3.20HL CA ORIGIHAL DATh SOURCE n EFB HAGNITUDE > 3.20 N 707 3 NOV 1959 10 03 LT 44.500N 115e500W Ml VI El.l DUCK CREEKp (HEGBEN LAKE) y HONT 708 9 NW 1959 21 10 00.0 45eZi3N 119.550M M IV BD HEPPK~Rt OREG 709 18 NOV 1959 23 48-32.0 48 '00N 1'>>.600W 3. 40HL Ch ORIGIHAL DATA SOURCE ~ EPB HAGHITUOE ~ 3,40 HL

' 710 19 NOV 1959 23rM 49.0 42.500N 126.500M 5. 10NI ORIGIHAL DATA SOIJl~i ~ EPB 711 23 NOV 1959 18-15-25.0 46.670N 121 '50M 4.80N ORIGINAL DATh SOURCE ~ EPB HAGHITUDE 4.80 N.

712 24 NOV 1959 06 15 45.0 46,550H 121.470lJ 3elOHL Ch ORIGIHAL DATA SOIJRCE ~ EPD HAGNITUDE ~ 3.10 HL 713 12 DEC 1959 06.25 33.0 '8.70QN 123elOOM 3. 10HL CA ORIGIIJAL DATA SO'IJRCE ee EPB HAGNITUDE = 3.10 HL

.714 12 DEC 1959 06 51:30.0 48.700N l>Me100M 3,30HL CA ORIGINAL DATA SOURCE e". EPB O HAGHITl(DF ~ 3.30 HL 715 26 DEC 1939 17 44 47.0, 42.700N 119 '00M 3e70HL Ch ORIGINAL DATA SOUI'CE EPB e- EFB 716 29 IZC 1959 12 07-15.0 52.300N 127 ~ GOOM 3e GOIIL Ch ORIGINhL DATh SOlJRCE HAGHITUDE ~ 3.80 N 717 29 DEC 1959 12-47"-21.0 52. 100N 127.700(J 3. CON CA ORIGINAL DATA SOlJRCE e= EPB HA(IHITUDE ~ 3.60 HL 718 7 JAN 1960 09"16 04e0 Rbe930N 122e500lJ 3. 60HL Ch ORIGINAL DAIA SOURCE ~ EPP HAGNITUDE = 3.60 HL 719 16 JAN 1960 07=31 01.0 46,750N 121.780M 3,50N Ch ORIGINAL DATA SOURCE ~ EPB HAGNITUDE ~ 3.50 HL 720 19 JAN 1960 09"00aM.O 51.100H 124.480lJ 3. 30HI CA ORIGINAL DATA SOURCE ~ EPB HAGHITUDE ~.3.30 HL o $

721 24 JAN 1960 00 39 33.0 43e500N 127.500M 4.50N NO ORIGINAL DATA SOIJRCE CGS HAGHITUDE(FRACTIONAL HOTATIOH AVE) 4.50 AUTHORITY-BRK Q

722 5 HAR 1960 LT 45.633N 1>>.667M M IV . 3.50 MG VANCOUVER'ASHINGTON TINE REPORTED AS LT 723 1 1 AFR 1960 06 l7 3 I~0 47 570N 122 250M e ., 3 30HL

~ Ch ORIGIHAI DhTh SOURCE ~ EPB HAGNITUDE ~ 3.30 HL 724 11 HAY 1960 03.-05:00.0. 46,800N 121.900M u III R SOIJI'HIJEST HT ~ RAIHIERt SEVEN HILES WEST OF LONGHIRE.

6 MOODWARD-CLYDE CONSULTANTS 23 APR 81 C

>ree ee.P t e

~

L=

ee

0 MQQDM)BD-cLYDE coHBULTARTB 23 APR 8 f

6 PAGE 37 o CAT. DATE TIHE(GHT) LAT LONG SL IHTEN MAG SH H DIB O 8 LOCATIOH hHD COMMENTS HO. DAY-HO-YEAR MR-MIH-SEC (HH) (KH) (I(H) 72a5 1R HAY 1960 12 56-'>>.0 RG.RQQR 125.ROOM 3 a QQHL Ch ORIGINhL DhTh SOURCE 5- EPR

. HAGHITUDE ~ 3.00 ML a

726 1R JUR 1960 10 30 QQ.Q R6a75QH 121a810M M III R LONGHIRF 727 16 JUH 196Q 10 32 R5.0 Rba/SQR 121 810M

~ M IV R LONSHIRE 5 SEP 1960 1R<31Z55ao R7a700H 121 ahoQM 3.00ML Ch ORIGIHAL DATA SOURCE EPD H!MJNITUDE ~ 3.00 HL 729 10 SEP 1960 15 06-3R.Q 47.500R 122a700M ". a 90HL Ch ORIGIHAL DATA SOURCE ~ EPR MAGNITUDE = R 9Q HL

~

730 11 OCT 1960 11.&i:00.0 R6 ~ QQQH 122.200M IV 731 1 ROV 1960 08 37 23.0 R7alooH 126.RQQW 3. QQN -"

Ch ORIGINAL DATh SolJRCE EPB

. HAGHITJ'DE 5- 3aoo HL 732 8 HOV 1960 11 39 00.0 R5.000R 120.000M M2 V 5.50 BD JJEWPORT( 200 HILEB OFF OREG-MASH COAST. EPICEHTER AT SEA.

733 22 DEC 1960 11 Rl-oh.o R3.300R 126.200M R a 10HL 51 CA ORIGIWL DATA SOJJPaCE ~ EPIJ 734 27 DEC,1960 11:27 08.0 R2aboQR 1>M./QQM 3. 30HL Ch ORIGINAL DATA SOJJCiCE 55 EPD 735 3 JAH 1961 15 55 00 0a R6 ~ QQQH 122 a looW IV R JAH 1961 Oi:R7-.OO.O Rh.OOQR 1~.083M IV H HO REPORTED FEJ T IHFORHATION HYPOCElffER DEPTH ASSIGNED SOLUTIOH B~D OR HAUjO-SEISMIC (FELT) IHFORHATION ORIGINAL DATA SOl~i = SEA 737 R JAH 1961 07"26 01.0 R6.000R I'>>.083M V M NO REPORTED FELT IHFORHATIOH HYPOCENTER DEPTH hSSIGNED ORIGINAL DcÃfh SOURCE a". SEh PARAHEfERS OF EPICDlTER FROM UHIV. WASHINGTOH, SEATTLE, R JAH 1961 07~26 OR.O 50.920H 12R 870M

~ 3 30HL a CA ORIGIHAL DATA SOURCE . ~ EPD MAGNITUDE ~ 3.30 HL

73) 17 JAH 1961 06 ' R2,0 R4.832R 116.R38M III UE WEST YELLOWSTONE, Holfr.

7RQ 17 JAH 1961 ll('27z50.0 51.800H 125.500M 3a20N Ch ORIGIIJi DhTh SOlJRCE . EPR HAGHITlJDE -" 3.20 HL 7R1 2 FED 19'61 05 50 lb.0 R6,800H 121.500M 3. 10HL CA ORIGINAL DhTA SOlJRCE a EPB O HAGHITlJDE ~ 3.10 ML al I

6 FEB 1961 05:19 23.0 47.500H 126.900M 3. 30N Ch ORIGINAL DATA SO(JRCE EPB 5

MAGNITUDE ~ 3.30 ML WOODMARD-CLYDE CONSTANTS 23 APR 81 a I

WOODWAI?D-CLYDE COHSUI TAHTS APR rg PAGE 38 CAT., Dh'FE TIME(GMT) LAT LONG SL It(TEH MAG SM H DIS 0 S LOCATION AND r COMMEHTS HO. DAYH40-YEAR HR-MIII-KC (MM) (KM)(KM) 743 22 hPR 1961 16 03 55.0 49.000H 119o700M 3.30m Ch ORIGINAL DATA SOURCE ~ EPD A MAGNITUDE ~ 3.30 tlL 744 22 MAY 1961 Olr57"51.4 47.600H 120.200W M IV 8

745 26 MAY 196'1 05".")1 00.0 46.053H 1Ã.300M M IV R COUGAR 746 2 JUH 1961 04:05 00 0 46 053H 12.....00LI

~ M III R COUGAR 747 6 JUH 1961 03-46 08.6 43.600H 127.700M N) HYPOCENTER SOLUTIOH HELD AT 33 KM (HORMAI DEPTH>

4.60H'. ORIGltIAL DATA SOURCE = CGS LOGVJ MAGHITUDE ~ 4.60 SCALE r tIL AIJFIIORITY~ BRK 8 748 28 JUN 1961 10-22-52.9 47.537H 120.293M M IV R ROCKY REACH DAM 749 25 JUL'961 02 33=21.0 49ob00H 114.400LI 20ML Ch ORIGIHAL DATA SOURCE ~ EPB MAGHITLIDE 3. 20 ML 750 28 JUL 1961 14-52-44. 0 46. OOQN 122, 100M IV 751 19 hUG 1961 04 56 24.1 44.700H 122.500W VI . 4.50H'3 HO RFPORTED DN4hGE 33 KM (NORMAL DEPTH)

HYPOCENTER SOLUTION HELD AT ORIGIHAL DATA SOURCE ~ CGS MAGHITUI)E(FRhCTIOHAL HOTATION,AVE) 4.50 AUTHORITY-PAS 23 AUG 1961 17:SVr47.0 42.400N 123,200M 4ehOHr 10 HO HYPOCE)FFER DEPTH ASSIGtlED HYPOCENFER/EPICEtIIER DETERMINED BY BERKELEY OUALIT D ORIGIHAL DATA SOURCE ~ BRK LOCI'J MAGHITIB)E - 4.60 SCALF ML, AUTFIORITY BPJ(

753 ib SEP 1961 03 24 58.0 46 ~ OOOH 1~.2005/ 4.30MI Ch ORIGINAL DATA SOURCE r- EPD tLLGIIITUDE ~ 4.30 ML 754 17 SEP 1961 15 56:00.0 46.000H 1K?.200M 5.00ML Ch ORIGINAL DATA SOURCE rr EPB MAGNITUDE ~ 5.00 ML 755 19 OCT 1961 20:37i49.0 47. 00N 1~.900M 3,00ML Ch ORIGItIAL DATA SOURCE r. EPB MAGHITLIDE ~ 3.00 ML 756 29 OCT 1961 14 00 12r0 49 ~ 400H 127 600M 3.20' Ch ORIGItIAL DhTh SOURI:E ~ EPB HAGHIlUDE ~ 3.20 ML 757 30 OCT 1961 02.16.32.7 42.300H 126.700M 13N'6 HO ORIGINAL DATh SOUIKE ~ CGS tL4GNIlllDE(FRACTIONALHOTATION AVE)W. 13 AUTHORITY-PAL 758 31 OCT 1961 02'~~.00,0 48,400H 120,000M 4.30' Ch ORIGINAL DATA SQUIRE ~ EPB MAGHITUDE rr 4.30 ML O "

759 31 OCT 1961 03 34 29.8 48.400M 120oOOOM V R FEL'I'VER 1 r 200 SO ~ MI ~

9 MOODMARD-CLYDE CONSULTANTS 23 APR 81

0 lJOODMARD-CLYDE COHSIJLTAHTS 23 APR

~ i PAGE 39 CAT. DATE TIJOU(GHT) LAT LONG SL IHTEH MAG SH M DIS O S LOCATION AHD COHMEHTS HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH) 760 7 HOV 1961 01-29-00 0

~ 45.700H 122.900M 5. OON Ch ORIGINAL DATA SOURCE - EPB MAGNITUDE = 5.00 761 7 HOV 1961 21 30 00 0~ 45 500H 122 600M

~ 4. 30HL CA ORIGIHAL DATh SOURCE > EPB MAGNITUDE ~ 4.30 HL 29 HOV 1961 Il:35:00.0 45.550H 122.600M M XV BD PORTLAND'REG 763 30 HOV 1961 00 12 50,0 47.200H 1++alOOM 3mlOHL CA ORIGIHJQ DATh SOURCE ~ EPB WGHITUOE ~ 3 10 HL 8

764 15 DEC 1961 11 35 00.0 45.757H 1~.870lJ M III R SCAPPOSE ORE ~ ALSO SPELI.FD S(ÃPP(mSE.

765 . 10 IiEC 1961 07-15 50.0 40.700H 128.000M 3. OOHL Ch ORIGINAL DATA SOIJRCE ~ EPB HAGHXTUDE ~ 3.00 HL

.766 15 JAN 1962 05:29.-00.0 47a000H 120.200M 4 30I9

~ Ch ORIGINAL DATh SOURCE EPB HAGHITlJDE ~ 4e30 HL O 767 17 JAH 1962 19 27-26o0 48.550N 12'70M 3a30HL Ch ORIGIHAL DATA SOIJRCE ~ EPB MAGNITUDE 3.30 6 768 29 JAH 1962 21=49=24.0 49.030H 124.620M 3. 50HL CA ORIGINAL DhTA S~i ~ EPB HAGNITlJDE ~ 3 50

~ HL 769 4 HAR 1962 22 50=32.0 49.250H 115.200M 3.20ML Ch ORIGIHAL DATh SOURCE ~ EPB MAGHITlJDE ~ 3 20 HL

~

770 19 JUH 1962 01 50 1R.O 49.000H 127,600M 3. 10HL CA ORIGINAL DATh SOURCE . EPB HAGHITUDE ~ 3.10 HL 0 771 16 JUL 1962 IR:00:00.0 47,045N 1~~.090M M IV R OLYHPIA 772 26 JUL 1962 16IRR-"34 0

~ 49.400N 127.000M 3. 50N Ch ORIGINAL DATh SDURCE EPD 0 MAGNITUDE = 3.50 HL 773 11 hUG 1962 16 53 00.0 46.000H 123.500M VX 20 AUG 1962 19"19-59e0 51 '00N 12lo900M 4. 30HL Ch ORIGIHAL DATh SOURCE ~ EPD MAGNITUDE ~ 4 30 HL

~

9 775 12 SEP 1962 23 13 00.0 46,100H 1~.200M LJ III R SIX HILES EAST OF COUGER 776 10 OCT 1962 18-03=10.5 44.300H 115. OOM IIX 33 HO REPORTED FELT INFORMATION 005 P AHD/OR P'RRXVALS USED IH HYPOCEHTER SOLUTIOH ORIGIHAL DhTA SOIJRCE '~ CGS 0

777 19 OCT 1962 03 45 00o0 44s215H 114e940M III FELT SThHLFY IDAHO FAIIJT EARTH NOISES 778 19 OCT 1962 10 43 25.0 44.600H 115.600ll III Hn REPORTED FELT IHFORHATIOH 005 P hND/OR P'RRXVALS USED IH HYPOCEHTER SOLUTIOH MOOIQJARD-CLYDE CONSULTANTS 23 APR 81

8 MQODMARD-CLYDE COND.TAtfrs 3 APR g

PAGE 40 CAT. DATE TitK(Gtff) LAT LONG SL ItffEN HAG SH H DIS (t S LOCATION AHD CONHEHTS NQ. DAY-HO-YEAR HR-HIH-SEC (Nt) (Ktt) (KN)

ORIGINAL DATA SOURCE ~ CGS 779 3 NOV 1962 17-42 00.0 46.053H 122.3QOM M IV R COUGAR 780 6 HOV 1962 03-36-46.9 45.800H I'M,500M VI 4.75H'4 NO REPORTED Df'RAGE 052 P hND/OR P'RRIVALS USED IH HYPOCEtlTER SQLUTIOH ORIGXHl'J Dh'I'A SOURCE ~ CGS ISOSEISt(AL HAP PUBLISHED BY USE t(A(NITUDE(FRACTIONAL HOThTIOH gAVE) ~4,75'UTHORITY-BRK 6 781 / NOV 1962 13-53-"00.0 46.100H 1~>.200M M IV R SMIFT Dhtty EPICEHTER FIVE AtlD OHE ttALF HILES EAST OF COUGAR.

t.

782 9 HOV 1962 14 12 00.0 46.100H 122.200M M IV R SMIFT DAtl~ EPICEHTER FiVE AHD OHE HALF ttILES EAST OF e ColloAR.

783 18 DEC 1962 06"49-LT 47.000H 114.0QOM Ll2 V EH ttOR'fttuE~SfERN ttOH'fhtth.

78n 18 DEC 1962 06:w=LT n7.0oaN 11n.oaou u2 V El.l NORTNMESTERH HotffANA.

785 18 DEC 1962 06" 2-LT 47.000H lln ooou

~ M2 V EH NORTtluESTERH ttOHTAM'A

.786 31 DEC 1962>>20=n9:35.0 47.oooH I~.oaou 5. OON ORIGIHAL DATh SOURCE EPB ttAGHITUDE = 5.OO ttL 787 24 JAH 1963 21" 43 Oooo 47.400H 122eloou 5.aoN CA ORIGIHhl DATA SOURCE ~ EPB O t(AGNITUBE 5.0O N.

788 25 JAH 1963 06 Xi:00.0 46.835H 122.318M M III. R LA GRhttDE 9

789 2/ JAH 1963 08-25 00.0 44.hoolt 114 600M

~ 5. 00NL Ch ORIGIHAL DATA SOUt?CE ~ EPB t(AGHIT(tOE = 5.00 ttL LOCALTIttE.

44.300H 114.500M 4.30N Ch ORIGltQL DATA SOURCE I EPB 790 1 FED 1963 09 39 oooo 9 tmGHzmoE =. n,3a LOCALTItlE.

791 5 FEB 1963 19-"30-00.0 44.260H 114.398ll IV UE FELT CLAYTON IDAHO 792 2 HAR 1963 16 30 00,0 45.535H 122.620M M IV R PORTLhtlDg ORE ~

0 793 7 YES 1963 23 M 25 0 44 900H 123 500M V n.bottD 33 HO REPORTED FELT IHFORHATIOH Q34 P AHD/OR P'RRIVALS USED IH HYPOCEtlTER SOLUTIOH ORIGINAL DATA SOUR(x . rGS 794 5 hPR 1963 09"27 lboa 49obooH 126.500M 3. Qot& Ch ORIGINAL DATA SOURCF ~ EPD 9 WGttITUDE = 3.OO N 795 24 JUH 1963 18 ln 16.0 49.600H 127.080M 3,20HI CA ORIGINAL DA'fh SOURCE ~ EPB 0 HAGttITUDE .. 3.20 N MOOBMARD-CLYDE CONSULTANTS 23 APR 81

~ ll 9

MOODMARD-CLYDE CONSIJLTAtffS 23 APR ~ A PAGE 41 CAT. DhTE TIME(GMT) LAT LONG SL IHTEH MAG SM H DIS 0 S LOCATION AH'D COMHEHTS t!O. DAY-MO-YCAR IR-MIN-SEC (MM) (IQ1) (KM)

/96 2 JUL 1963 12=34 34.0 42.900H 126.200M 4. 10MB 33 HO 005 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTZOH A ORIGINAL DATA SOUIKE =- CGS 797 4 JUL 1963 05:50-49.5 43.700N 126.400M 4.4OtfD HO O05 f AtaJ/OR P'RRIVALS USED IH HYPOCEtfIER SOLUTZOH A ORIGINAL DATA SOURCE l CGS 790 13 JUL 1963 03 16-53.0 49.750H 124 000M

~ 3, loN CA ORIGINAL DATh SOURCE ~ EPD MAGFIITUDE = 3.10 ML 799 2 AUG 1963 0'9-45 "41.'9 43.400H 114.500M IV 50 HO REPORTED FELT IHFORMATIOH 006 P htlo/OR P'RRIVALS USED IH HYPOCEtlTER SOLUTION ORIGINAL DATh SOURCE ~ CGS 000 3 AUG 1963=- 01-23 16.7 44.900)I 115.400IJ 4.00MB 33 Ho 005 P AHD/OR P'RRIVALS IJSED IH HYPOCEtlTER SOLUTIOH ORIGIHAL DATA SOUIKE ~ CGS 001 10 AUG 1963 00 24 26.0 47.500H 122.600M 3. 20ML Ch ORZGINAL DATA SOURCE ~ EPD MAGNITUDE ~ '3l20 ML 002 22 AUG 1963 O9 27Z09.3 42.OOOH 126.200M 5.60MB 33 Ho 021 P AHD/OR P'RRIVALS USED IN FIYPOCEHTER SOLUTZOW ORZGIFIAL DATA SOUR(:E CGS 803 26 hUG 1963 09 20 43 ' 40,000H 123.000M 3 10ML

~ Ch ORIGIFUAL DATA SOURCE . E D MAGNITUDE ~ 3.10 ML SO4 6 SEP 1963 22:19:35.2 44.3OOH 114.7OOM 4. 10MB 33 HO 005 P AHD/OR P'l&IVALS USED IN IIYPOCEHTER SOLUTIOH ORIGINAL DATA SOIIKE " CGS 005 9 SEP 1963 10"-45 17.4 44.400H 114.700M V" 4.10MB 15 HO SPORTED FELT It)FORMATION 006 P At(D/OR P'RRIVALS USED IN HYPOCEFITER SOLUTIOH ORIGIHAL DhTA SOURCE ~ CGS 806 11 SEP 1963 02-00 44 0 ~ 44 300H 114 l700M

~ VI 4.90MB 15 HO REPORTED DhtlhGE 059 P AM)/OR P'RRZVAIA (ISED ZH HYPOCEHTER SOLUTION ORIGINAL DATA SOIJRCE CG, 007 11 SEP 1963 02 31>>39.9 44.300H 114.700M 4 '0MB 15 HO REPORTED FELT IHFORMATI(ZH 009 P AHD/(Jlt P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGItlhL DATh SOURCE > CGS 808 12 SEP 1963 06 23-50.6 44.300H 114.700M 'V 4.40MB 15 HO REPORTED FEI T IHFORMATIOH 037 P AHD/OR P ARRIVALS USED IH HYPOCEIA'ER SOI UTIOH ORIGIIIAL DATA SOURCE l CGS~

009 12 SEP 1963 06.53 00 ' 44.200H 114.500M 4 '0MB 33 HO 005 P AHD/OR P'ldlIVAIS USFD IH HYPOCEHTER SOLUTION ORIGIHAL DATA SOUIKE = CGS 810 12 SEP 1963 09 01 09lo 44 '00H 114.000M 3,60MB 15 HO REPORTED FELT IttFOI1ATIOFI 007 P AHD/OR F 'RRIVnLS USED IN HYPOCCNTER SOLUTIO)l ORIGIFIAL DATh SOIJRCE CGS llOODMARD-CLYDE COHSIJLTAtffS 23 APR 01

, Q

0 MOODMA'.(D-CLYDE CONQJLTA)rfS 23 APR~

PAGE 42 Mf. DATE TII)E(Gtff ) LAT LONG SL INTRO HAG SH H DIS 0 8 LOCATION AHD COMMENTS tin. DAY~-YEAR 'R-HI)I-SEC (HM) (KH) (KH) 811 14 ~ 1963 15:m-.02i I 44.300H 114.800M V 4i ~ 30HD 15 NO REPORTED DAMAGE 027 P AND/OR P'RRIVALS USED IH HYPOCEHfER SOLUTIOH ORIGINAL DATA SOIJRCE i= CGS 812 14 SEP 1963 16-06-49i3 44.300H 114.700M 3,90MB 33 Nn oob P AHD/OR P ARRIVALS usED IH t!YPOCENTER soLUTIoN ORIGIHAL DATA SOURCE ~ CGS 813 14 SEP 1963 Ib: 9:41.7 44 '00N 114.700M 4.00HD 15 Nn 013 P AND/OR P'RRIVALS USED IN HYPOCEHTER SOI UTIOH ORIGINAL DATA SOURCE = CGS 6 814 14 SEP 1963 16 55t40,6 44.300H 114.60aM 3.90MB tto 008 P AND/OR P'RRIVALS USED IH HYF'OCEHTER SOLUTION ORIGINAL DATA SOURCE ~ CGS 8 815 14 SEP 1963 18 48 56.4 44.300H 114i800M 3.80MB 15 No REPORTED FELT IHFORHhTION 011 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOI UTIOH ORIGIHAL DATA SOURCE - CGS 816 16 SEP 1963 12"06 14.0 44.300H 114.700M 4.20MB 15 Nn REPORfED FELT INFORMATION 016 P AHD/OR P'RRIVALS IJSED IH HYPOCENTER SOLUTIOH ORIGltthL Dhrh snur'CE .. Cl.s 817 16 SEP 1963 17 15 34.5 43i200H 126.800M 4.70HII 33 Nn 009 P AND/OR P'IJ,IVAI 8 USED IH HYPOCEHTER SOLIJTIOH ORIGINAL DATA SOURCE ~ CGS 818 21 SEP 1'963 12 29 25.8 43.700H 114i700M 3.50HD 33 Nn 005 P AND/OR P'RRIVALS USED IH HYPOCE)ITER SOLUTION ORIGINAL DATA SOURCE = CGS 819 22 SEP 1963 22 36s23ib 42.000H 12bi500M ~ 4 30MB

~ Hn 007 P AHD/OR P'RRIVALS USED IN HYPOCE)tTER SOLUTIotl Q ORIGINAL oATA souRCE css 820 3 OCT 1'963 07 10"00,0 44.260H 114.398M IV UE FELT CLAYfON~ 11%BIO 821 5 OCT 1'963 04-22:54 ' 43,700N 127.100M 4 '0MB 16 Nn 011 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGltIAL DATA SOU!ICE ~ CGS 7 OCT 1963 21 30 30.0 44.800H 114.400M IV 3.50MB 33 Nn REPORTED FELT INFOR)IATIOH 006 P AND/OR P'IVALS - co USED IH HYPOCENTER SOLUTIOH ORIGI)IAL Dnfh souRcE 823 10 OCT 1963 03 15 15,0 47.600H 127.100M 3. 90M! Ch ORIGIItAL DATA SOIJRCE ~ EPB HAGHITUDE ~ 3.90 HL 824 15 oc'f 1'963 15-15-10.6 44.300H 114 800M

~ IV 3.90HB 33 Hn REPORTED FELT It!FORlViTIOH 009 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHhL Dhfh SOURCE i"- CGS at O25 24 OCT 1963 09 52-37.4 44.400H 114 800M

~ 3.80HD 33 Nn aa5 P AND/oR P'RRIVALS usED IH HYr OCEHTER SOLUTION ORIGItIAL DATA SOURCE ~ CGS 0 826 29 ocr 1963 14=04=22.1 44.500H 127.700M 3.80HD 33 Ho 005 P hND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE = CGS MOODMARD-CLYDE CONma.TA)ITS

MOODMAPWCLYDE COHNLTA)ff8 23 SPA ~ Q Xq. ~ ~

PAGE 43 CAT, DATE TI))E(GKf) LAT LONG SL IHTEN HAG SH H DIS 0 Q LOCAT IOH AHD COHHEHT8 Ho. DAY-HO-YCAR t(R-HIH-SEC ())H) (t(tt) (l(tt) 827 20 Hov 1963 03 14 02.4 44.300H 114.800M 3.50HD 33 HO 005 P AHD/OR P CmIVALS USED IH ))YPOCENTER SOLUTIOH

, ORIGINAL DATA SOURCE

~ CGS 820 28 HOV 1963 11:14 18,6 47.720H 120.500M 3.20HS 829 18 DEC 1963 10-"06 51.0 43.700N 126.900M 4.20HB 33 HO 007 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE CGS 830 22 DEC 1963 02 50 29.8 44.400N 114.600M 4.40HD 33 HO 006 P AHD/OR P'RRIVAL. USED IH ))YPOCENTER SOLUTIOH ORIGINAL DATA SOU)KE = CGS 831 22 DEC 1963 02"54 04.9 48.590H ll'9,760M V 4.40I1B 33 N) REPORTED FELT IHFORHATIOH 008 P AHD/OR P'RRIVAl S USED IH HYPOCEt)TER SOLUTIOH ORIGI)tAL DATA SOURCE - CGS 832 22 DEC 1963 05"44 37.9 44.200H 114.500M 4. 10HL 33 Ch ORIGINAL DATA SO)JRCE n EPB HAGHITllDE ~ 4.10 HL 833 23 DEC 1963 00" 15 01.4 44.400H 114,800M 5; 10)tt 33 CA ORIGINAL DATA SOURCE < EPB 8 HAGHITUDE ~ 5 ~ 10 ))L 834 23 DEC 1'963 00 28 5/.1 44.200H 114.400M 3. 80l)L 33 CA ORIGINAL DATh SOU)KE EPB S PJ)GHITUDE ~ 3.80 HL S

835 '5 DEC 1963 20-04 10.7 44 200H 114 s 600M

~ 3.70HI 33 CA ORIGINAL DATh SOURCE t)AGHITUDE ~ 3.70 t)L

~ EPB 836 27 DEC 1963 02"36-21.6 45.700H 1~M.400M VI 4,5011B 33 HO REPORTED FELT IHFORHATION 028 P hHD/OR P'RRIVALS USED IN HYPOCEHTER SOLUT ION I ORIGINAL DATA SOURCE ~ CGS

~

837 1 JAH 1964 04"~)13.4 43.700N 126.300M 3. 70))B 33 'Ho 006 P AND/OR P'lÃIVALS USED IN tlYPOCENTER SOLlffIOH ORIGINAL DATA SOUfKE ~ CGS 838 0 JAH 1964 18 46 50on 44.100H 127.500M 4.20))D N) 005 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE CGS 839 23 JAH 1964 03-04 4'9,7 44.400H 114.500M 4. 10l"IB 33 HO 005 P AtlD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTION ORIGIHAL DATh SOURCE CGS 840 26 JAH 1964 21 41 00.0 46.100H I'~.400M 4 s30N CA ORIGINAL DATh Sot~i ~ EPD tNGHITUDE ~ 4.30 HL 841 28 JAH 1964 On-.u,-.48.6 43.300H IM.900M 4 '0HD 17 Ho 006 P AllD/OR P'RRIVALS USED IH l)YPOCENTER Sol.UTIOH ORIGINAL DATA SOURCE CGS 842 31 JAtl 1964 17 07 43.1 51.300H 124.700M n.20)e In N) 008 P AHD/OR P', ARRIVALS USED IH )IYPOCEHTER Sol.UTIOH ORIGIHAL DATA SOURCE ~ CGS O 843 12 FEB 1964 16-14"-30e7 43.300H 126s00GM 4 o 10l'lB 33 Ho 007 P AHD/OR P'lNIVAI8 USED IN )lYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS MOODMARD-CLYDE COHSUI TAHTS 23 APR 81 p Q <+~V

0 C ~

0 lJOODMARD-CLYDE CONSULTAt(TS. 23 APR+

f3 PAGE 44 CAT ~ DATE TINE(GNT) LAT LOHG SL IHTEN NAll SN l.l DIS Q 8 LOCATION AND CONNENTS tlO. DAYWO-YEAR HR-NIH-~MC (NN) (KN) (KN) 844 14 FEB 1964 12 07 22.1 43 '00H 126o000M 4.50NB 33 HO Oll P AND/OR P'FRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 845 20 NAR 1'964 05 20-00.0 47.700H 114.200M 4. 30NL Ch ORIGIHAL DATA SOURCE ~ EPB fL4GHITUDE ~ 4.30 NL LOCA TINEs Snb 29 NAR 1964 10=59~37.0 52.000H 119 '00M 3.20NL. Ch ORIGINhL DATh SOURCE EPP H4GHITUDE ~ 3.20 NL 847 31 NlR 1964 02.11 07.1 43,600N 126.600M 4o50NB 33 HO 014 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DATA SOURCE > CGS 848 9 APR 1'964 00 46 nba 0 49.100H 127,500M 4 10NL

~ Ch ORIGINAL DATh SOURCE ~ EPB NAGHITUDE ~ 'l.10 NL 849 16 APR 1964 LT 46.800N 121e800M M IV MG NT. RAINIER PARl< MASlt.

TINE REPORTED AS LT 850 17 APR 1964 06=@=43.6 44 100H 114.300M

~ IV 3. 60I% 33 NO REPORTED FELT INFORNATION 005 P hND/()R P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOIJR(X CGS 851 21 APR 1964 12-11-32.9 .44.200H 114.300M 3. 60NB 33 HO 006 P AtlD/OR P'RRIVALS USED IH HYPOCENTER SOLlJTIOH ORIGIHAL DATA SOUJICE ~ CGS 852 23 APR 1964 00"27 01ab 43s300H 1>M.500M 4.30NB 33 tlO 008 P AHD/OR r 'JTRIVALS USED IN HYr OCENTER SOLUTION ORIGIHAL DATA SOURCE ~ C('S 9

• 853 26 APR 1964 01 n2 49 0~ 48.700N 120.500M 3. 30tlt Ch ORIGINhl Dh'rh SOURCE ~ EPD NAGHITUDE ~ 3 30 NL

~

854 8 NAY 1964 10-"04 1bo4 43o400tl I+MebOOM 4,30tIB HO 010 P AHD/OR P'RRIVALS USED IH }JYPOCENTER SOLUTIOH ORIODJAL DATA SOURCE ~ CGS 855 13 NAY 1964 13 46 15.3 48 '63H 114.073LJ IV UE BIG FORl< NOHT. AMl'ZENED FEM EAR I'H HOISE 856 26 JUN 1964 12 24"28.5 48.200H 115a100M IV 4.70NB 33 HO REPORrED FELT IHFORtlhrlOH 010 P ht(D/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 0

8'7 ' JUL 1964 17c02.34.3 47.400H 127.900M 3.80NB 33 HO 005 P AND/OR P'RRIVAJ 8 USED IH HYPOCEtlTER SOLUTIOH L ORIGINAL DATA . OUNCE CGS 858 4 JUL 1964 13 41 29.5 43.600H 126.700M 4 s70tlD 33 HO 005 P AND/OR P'Rf,'IVALS USED IH HYPOCENTER SOI l)TIOH ORIGINAL DA'TA SOURCE ~ CGS o

859 7 JUL 1'964 13>>44"-40.3 43.400H 127.200M 5.70ND 7 HO 017 P AHD/OR P'RRIVALS USEI) IH IlYPOCEHTER SOLUTIOH f ORIGltJAL D4TA SOURCE . CGS

~

~

MOODMARD"CLYDE COHSlJLTANTS 23 APR 81

'l APR~

~ i' I

0 MOODMARD-CLYDE CONSULTANTS 23 e

'i ~

i 8

PAGE 45 I CAT. DATE TINE(GNT) LAT .<<LONG SL INTEH NAG SN H DIS 0 S LOCATION AHD CONNEHTS HO. DAY-NO-YCAR Hft-NI)t-SEC (NN) (t(N) (KN) 86Q 13 JUL 1M4 11 54i-50.7 42.500H 126.700'M 5i 60NB 33 HO 033 P AND/OR P'RRIVALS USED IH ))YPOCEN'fER SOLUTIO)l

\ ORIGINAL DATA SOURCE CGS 861 14 Jl)L 1/64 15:50.-00.7 40.040H 122.600M VI 5.00H'3 NO REPORTED DA.')AGE NORE ACCURATE SOLUTION BASED O>> DETAX)XD LOCAL DATA ORIGINAL DATA SOURCE ~ U E ISOSEISNAL NAP PUBLXSHED BY USE LOCAL NAGHITUDE ~ 5. 00 SCALE .-.NL A)f)MRXTY= SEA 862 27 JUL 1M4 Ie-.40=~m.4 42.400N 1~~.300M 4. 50ND 33 NO 007 P AND/OR P'dtXVALS USED XH ))YPOCE)ffER SOLUTIOH ORIGINAL DATA SOUfKE ~ CGS 863 30 JUL 1964 12 45 15.4 49.200H 122i300M 4.30 R FEI T OVER 3i000 SO NI 0

~ ~

864 30 JUI 1'964 15:32:21.0 40.700H 122.800M 3.00NL CA ORIGINAL DATA SOURCE i-. EPD NAGNITUDE ~ 3 ~ 00 NL 865 2 AUG 1M4 22 26 32.0 49.400H 116.600)J 3. 10NL CA ORIGINAL DATA SO)JRCE ii EOB NAGHITUDE r 3. 10 NL 866 6 AUG 1'964 10 46:28.9 43.400H 126.700M 5. 30tlD 33 HO 014 P AHB/OR P'RRIVALS USED IN HYPOCEHTER SOLlJTIOH ORIGXHAL DATA SOURCE CGS 867 13 AUG 1964 06-35-39iQ 42.200H 126.100M 4.90ND 33 HO 020 P AND/OR P J)RRIVALS USED IH ))YPOCE)ft ER SOLUTIOH ORIG ItlAL DATA - SOURC)= CGS 0

840 13 AUG 1964 00"50-46.0 42.300H 125.500lJ 4 i 90NL'3 HO 010 P AND/OR P'Rr;IVALS USED IH HYPOCE)rrER SOLIJTIOH ORIGIHAL DATA SOURCE ii 869 3 SEP 1'M4 11 40 36.1 43.500N 127,100M 4. 40I% 33 HO CGG 013 P AHD/OR P'RRIVALG USED IH HYPOCEHTER SOLUTIOH e[

ORIGINAL DATA SOURCE CGS 870 - 8 SEP lM4i 00 27 PJ 5 44 300H 1 14 800M

~ ~ 3. 90l"ID 33 HO QQ6 P AHD/OR O'RRIVALS USED IH HYPOCE))TER SOLUTIOH ORIGINAL DATA SOURCF CGS 871 22 SEP 1964 06 52 10.0 44.400N 114.000M 4.30NB 15 HO 006 P OlD/OR O'RRIVALS USCD IN l.lYPOCEHTER SOLUTION ORIGINAL DATA SOURCE CGG Q

872 24 SEP 1M4 13-59-36.0 43i500H 127.500M 6. 10ND 14 HO 032 P AtlD/OR O'RRIVALS l)SED IH HYPOCE))TER SOLIIl'ION ORIGINAL DATA SOURCE .- CGS Q

8/3 20 SEP 1964 -15=43-13.6 43.500H 127.100M 4 '0ND 33 HO 021 P AHD/OR O'Rf'XVALS USED IN HYPOCENTER SOLUTION ORIGIHAL DATA SOURCE ii CGS 8

8/4, 1 OCT 1964 11 00 40.3 43.500H 126.900M 6.00NB 33 NO 017 P AND/OR OBRIVALG USED IN HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CCiS 875 1 OCT 1964 12-31 24,6 45.700H 122.000M V, 5,30NL'3 . HO REPORTED FELT I HFDF)ATIOH 010 P AND/OR P'RRIVALS USED IH HYPOCE)ffER SOLUTION OR IGIHAl DATA SOURCE i-. CGS MOODMARD-CLYDE CONS)JLTAtffS 23 APR 81 p

e, 0

Q MOODMARD-CLYDE CONSULTANTS 23 APR~>

Q PAGE 46 ChT. DATE TINE(GMT) LAT LOHG SL It(JEH MAG SM H DIS 0 S LOCATIOH AHD CONMEHTS ttO. DAY-MO-YEAR HR-NDI-SEC (NM) (KN) (KM) 8/6 7 OCT 1964 17"26 M.2 43.500N 126.000M 4.50MB 23 NO 005 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGIHAL DATA SOLIIKE = CGS 877 0 OCT 1964 14 12 53.9 43.900N 127 400M 3.90MB 33 HO 00;i P AND/OR P'RiIVALS USED IH HYPOC~ER SOLUTIOH

~

OfiIGIHAL DATA SOUfiCE ii CCiS O 870 9 OCT 1'M4 02"26 02 4 47.000N 114.200M V 4.60MB 33 HO REPORl'ED FELT INFORNATIOH 007 P AHD/OR P'RRIVALS (ISED IH HYPOCENTER SOLUTIOH F

ORIGINAL DATA SOLJRCE .-.

Cf'79 12 OCT 1964 04 31 00.0 45,700H 122.800LI 4.30NL Ch ORIfiINAI DATA SOLJRCE ii EPB MAGHITLIDE ~ 4.30 NL 8 08O 14 OC'r 1M4 06-.33-.00.0 47.7OON 122.1OOM 4.30tg Ch ORIGINAL DATh SOUR(X MAGNITUDE ~ 4.30 ML i= EPB 001 14 OCT 1'M4 lb 03 b8.6 47.900H 114.300M 4 60MB

~ 33 HO REPOR'IED FEI T INFORMATION 6 007 P AHD/OR P'RRIVALS USED IH HYPOCEtJTER SOLUTION ORIGINN DATA SOLIIKE ~ CGS 9

002 15 OCT 1'964 14=32"-37.5 47.700H 122.100M V, 4,10MB 33 HO REPORTED FELT INF'ORMhTIOtk OO6 P AND/OR I ARRIVALS USED IN HYPOCEtffER SOLUTIOH ORIGINAI DATA SOIIRCE ~ CGS 0 803'7 OCT 1964 12 34 17.9 47obooH l~ilooM III 3.40 004 10 OCT 1964 12-02 34.0 47.900H 121.900M IV 3o50, R 805 6 NOV 1964 12-.14=29.0 43.SOON 126.600M 4.60MB 33 NO 014 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION O ORIGINAL DATA SOURCE ~ COS 6 806 10 NOV 1M4 10" 26 50.0 44.100N 114.100LJ 3.60MB 006 P AND/OR P'IKIVALS USED IH

~

IIYPOCENfER SOLUTIOH O ORIGINAL DATA SOURC'E CGS O 007 11 DEC 1'M4 13 11 12.0 49.200H 120.000LJ 3. 70NI Ch ORIGINAL DATA SOURCE ~ EPD MAGkIITUOE ~ 3.70 NL 800 12 DEC 196 I 04 19 07oo 40 500H 12booooLJ 3. 30NL Ch ORIGIJJAL DATA SOURCE ~ EPD MAGNITLIDE ~ 3.30 ML 9 009 15 DEC 1M4 19 41 21.0 49o000H 127.800M 3 e SotIL Ch ORIGIHhl DATA SOURCE ~

MAGNITUDE ~ 3.50 ML EPB 090 6 JAH 1965 03 26 00.0 47.700H 114o200M 4. 30ML Ch ORIfiIHAL DATA SOURCE ~ EPB NAGHITLfDE ~ 4.30 ML LOCJ'IME.

891 9'AH 1M5 11-56 34oo 49a300H 121a250M 3. 20NL CA ORIGIklhL DATh SOURCE i EPB NAGNITLIDE ~ 3.?0 ML MOOI1MARD-CLYDE CONSULTANTS 23 APR 81

MOODMARD-CLYDE CONSULTNCfS APR PAGE 47 Chf.

NO ~

DhTE TINE(GHf)

DAYS%-YEAR HR-HIH-SEC

'AT LONG SL INTEN (HH>

HAG SH H DIS 0 8 (KH) (KH) ~

LOCATION AND COHHEN'r 8 892 9 JrA 1965 14 58 43.0 49.300H 121.250M 3v 10HL Ch ORIGINAL DATA SOUfiiE vi EPD V HAGHITUDE = 3.10 HL 893 1 HAf( 1965 10-"24-12.4 44.000H 127.400M 4.10HB 33 NO 008 P AHD/OR P'PiRIVALS USED IH HYPOCENTER SOLUTIOH ORIOIHAL DATA SOURCE = CGS et 894 8 l)AR 1965 1'9"30 50 ' 52.600N 115.400ll 3.00N Ch ORIGIHAL DATA SOURCE - EPD HAOHITUDE ~ 3.00 HL 89.'I 10 HAR 1965 20 09 15V2 43.400H 125.400M 4.00HD 33 HO 006 P hHD/OR P'RliIVALS USE)) IN HYPOCEHTER SOLUTION ORIGINAL DATA SOURCE CGS 0 896 23 HAR 1965 00=28 18.0 49 '00H 117.400M Ch ORIGINAL DATA SOURCE vi EPB HAGNITUBE 4.00 HL 897 24 HOB 1965 12.44.55.0 49.900N 117.400M 3. GOHL Ch ORIGINAL DATA SOl)RCE vv EPD 8 HAGHITUDE ~ 3.80 HL 898 26 HAR 1965 18 58 46.3 43v200H 126V200M 5 OOHB 33 HO 015 P AHD/OR P'miIVALS USED IN HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE . CGS 899 27 HAR 1965 09-03-58.1 43.800N 126.900M 3,90HD 33 NO 006 P AHD/OR P'IKIVALS USED IH HYPOCENTER SOLUTION 8 ORIGINAL DATA SOURCE ~ CGS 900 '7 HAR 1965 20 25-14v7 43.50QH 125.900M 3.80MB 33 NO 005 P AND/OR P'RRIVALS ORIGIHAL DATA SOURCE USED CGS IN HYPOCEN'fER SOLUTION 901 5 APR 1'965 09-"27 32v5 43.900H 127,800M 5vlOHD 33 HO 012 P AND/OR P'RI IVALS USED IH tlYPOCENlER SOLUTION ORIGINAL DATA SOURCE ~ CGS 902 7 re 1965 21 06-43.0 44.400N 114.800M 3. BOND 33 HO ORIGINFJ DATA SO()RCE vv CGS 903 18 hPR 1965 19 05 34V1 44.300H 114.500M 3.50HB 33 NO 005 P AND/OR P FSAIVALS USED IH l)YPOCE)rfER SOLUTIOH ORIGIHAL DATA SOURCE ~ CGS 904 18 APR 1965 20 49"25.2 43.900H 127.200M 4,40HD 33 HO 007 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DATA SOURCE . CGS 905 21 APR 1965 11"47 30.0 52v300H 117.200M 3,70HL CA ORIGINAL DATA SOURCE v ~ EPB MAGNITUDE ~ 3.70 HL Q

906 27 APR 196" 06"-50:LT . 47.000N 11n.oaou M2 V EH HORfl)WE. TERN MO)ffAHA. FEI T ARFh 450 SO HI 907 28 APR 1965 1'9-00 00.0 48.600H 116.900M 4.30HL Ch ORIGIHAI DATA SOURCE EPB HAGHITUDE ~ 4.30 HL LOC(L.TINE.

908 2/ APfi 1965 04 29" 16.3 44.500H 127.900M 4.20HB 33 HO 005 P AND/OR P'RRIVALS USED IH }(YPOCEHTER SOLUTIOH ORIGIHAL DATA SOURCE - CGS WOONJARD-CLYDE CONSULTANTS 23 APR 81 V

PAGF 48

r WOODWARD-CLYDE CONQ JLTAt)TS 23 API ~< ia ~ ~

p [

PAGE he CAT. DATE TIME(GHT) LAT LONG SL IHTEH HAG SM kl DIS 0 8 LOCATZOH AHD COHHEHTS HO. DAY-MO-YEAR HR-HIH-SEC (HH) (KM) (KH) 909 29 h R 1965 15=28=43.3 47,400)) n~.hooW VII 6.50MB HO REPORTED CASUS TXEB 114 P hHD/OR P'RRIVALS l)SED IH HYPOCENTER SOLUTIOH ORXGIHra DATA SOURCE - CGS ISOSEISMAI HAP 1'UBLISHED BY USE HAGHITUDE (FRACTIONS NOTATIONp AVE)r 6 88 ~ @ AUIMORITY BRK 910 30 APR 1965 03:14 43.6 43.600H 127.000M 4.60HB 33 HO 007 P hHDIOR P'RIVALS USED IN HYPOCEt)TER SOLUTIOH ORIGINAL DATA SOURCE = CGS 911 31 HAY 1965 03 20-42i0 49.300H 127.800ll hi70HB ll HO 020 P AHD/OR P'RRIVALB USED IH )IYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 912 8 JUH 1965 12 41 40i8 42.100H 126ibOOM 4.70MB HO 009 P AHD/OR P ARRIVALS USED IH l)YPOCEHTER SOLUTIOH ORIGIHAL DATA SOIJRCE CGB 913 17 JUH 1965 11 22 54.9 43.200H 126.000M 4.60HB 33 HO 014 P ht)D/OR P ARRIVALS USED IN HYPOCE))TER Sal.UTIOH ORIGINAL DATA SOURCE > CGS 8 914 20 JUH 1965 17 23 5bi8 43.100H 126iOOOM 4.60MB 33 HO 023 P AND/OR P'RRIVAl S USE)) IN )IYPOCEtlTER SOL')JTIOH ORIGINAL DATA SOURCE ~ CGS O 915 20 JUH 1965 18:04 37.3 42.900H 126.100M 5.60HD 33 HO 066 P AND/OR P'RRIVALB USED IH HYPOCENTER SOLlJT ION ORIGINAL DATA SOUfTE CGS MAGNITUDE(FRACrlnHAL NOTATION,AVE) 5. 00 AIJTMORITY-BRK O 916 20 JUH 1'965 19-17 59.9 43.200H 126.100M 4.20MB 33 HO 008 P AHD/OR P'RRIVALS USED IH )IYPOCENTER SOLUTIOH ORIGINA'ATA SOURCE ~ CGS 9 917 24 Jl)H 1965 10-54"-45.5 43.600H 126.900M 4.10MB 33 HO 007 P AHD/OR P'RRIVALB USED IH )IYPOCE))TER SOL)JTIOH ORIGIHAL DATA SOURCE ~ CGS 918 1 JUL 1965 21 hl 55.0 47.700H 122 ~ OQOM 3.60N Ch ORIGINAL DhTh SOURCE -" EPD HAOHIllJDE = 3.60 HL

'9l/ 25 JUL 1965 08-34-43.2 42.100H 126.000M 4.60MB 33 HO 010 P AHD/OR P'RRIVALB USED IH HYPOCENTER S01 UTIOH ORIGINAL DATA SOURCE ~ CGS

'O 920 28 JUL 1965 18-33-45.0 52.300H 119.800M 3.50ML Ch ORIGIHAL DATh SO~i = EPB HAGHITUDE ~ 3.50 N 921 29 JUL 1965 04-"02-42.2 44.300H 114.700M hi ~ 40MB 33 HO 013 P AHD/OR O'RRIVALS U. ED IN HYPOCEHTER SOl UTIOH ORIGINAL DATA SOURCE ~ CGS 922 3 hUG 1965 01 22 l6 i 0 49 300H 127 600M

~ 3.00ML Ch ORIGINAL DATA, GURGE EPB Hhut)ITUI)E 3.00 ML 923 19 AUG 1965 21-02 15.7 44.600H 118.400M 4.40HD 33 HO 010 P AHD/OR P'RRIVALB USFD IH )IYPOCENTER SOLUTION O ORIGIHAL DATA SOURCE CGS 924 31 AUG 1965 11 26 "K? e 7 43,300H 126 000M 4.20MB 33 HO 009 P AHD/OR P'RRIVALB USED IN ))YPOCENTER SOLUTZON et:

ORIGIHAL DATA SOURCE = CGS

.'WOODWARD-CLYDE COHSULTA))TS 23 APR 81

9 MOODMARD-CLYDE COHMLTA)ffS 23 APR~

PAGE 49 CAT. DATE TI)(E(G)tT) I.AT LONG SL IHTEH HAG SH H DIS 0 S LOCATIOH AHD Colt)(EHTS HO. DAY-Mo-YEAR HR-HIN-SEC (tttt) (t(H) (IQ()

925 2 SEP 1965 ll 3/"50.0 48.600N 128.000M 4.60)tB Ch ORIGINAL DATA SOURCE ~ EPB 926 2 SEP 1965 21 16-44.0 48.600H 128.000M 4.00NB Ch ORIGINAL DA'fh SOURCE ~ EPD 927 3 SEP 1965 00.30-31.0 48 500H 128 000M

~ ~ 4.oaW Ch ORIGINA) DATA SOUIKE ~

EPD HAGNITUDE ~ 4.00 t(L 928 4 SEP 1965 09:42-10.9 42.100H I+~.400M 4,10HB 33 Ho 006 P AHD/OR P'IJ'RIVALS USED IN HYPOCENTER SOLUTIOH ORIGIHAL DATA Sot)RCE CGS 929 10 SEP 1965 17 U7"-13.5 43 900H 127.800M

~ 4.90HB 19 Ho 015 P AND/OR P'RRIVALS USED IH llYPOCENTER SOLUTIOH ORIGII'lAL DATA SOURCE - CGS 930 13 SEP 1'965 15-58 54 3 45.200H 114.800M 3.60HB 33 Ho 005 P AND/OR P'RRIVALS USED IN llYPOCEHTER SOLUTIOH

'RIGIHAL DATA SOU(KE ~ CGS 931 16 SEP 1965 07 08 51 0~ 51.800H 117.300M 3. 10)(L Ch ORIGIHAI DATA SOURCE ~ EPB tthGHITUDE = 3.10 t(L O 932 4 OCT 1965 Iot40 19,5 44.000N 127.900M 4obo)(B 43 Ho 017 P hND/OR P'RRIVALS USED IH ttYPOCENTER SOLUTION 6 ORIGINAL DATA SOUlKE ~ CGS 933 9 OCT 1965 10 10 43.7 48.100H 114 400M~ 4.00HB, 33 HO 006 P AHD/OR P'RRIVALS USED IH HYPOCE)ffER SOLUTION ORIGINAL DATh Sol)RCE ~ CGS OCT 1965 06 00 05.0 43,400H 126.300M 4 2QHB

~ 34 HO OO7 1 AHD/OR P'RRIVALS USED IN ltYfOCENTER SO1 UTIOH ORIGIt'thL DATA SOURCE CGS 935 23 OCT 1965 16-27 59.8 47.500H 122.400M 4a80)1B 23 Ho REPORTED FELT IHFORHATIOH 013 P Al(D/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH ORIGINA) DATA SO1)RCE CGS 956 30 OCT 1965 1'9 15 57 ~ 9 42m 100)l 121 ~ SQOM 4. 00))B 25 HO 008 P AHD/OR P'RRIVALS USED IH ttYPOCE)lTER Sol UTION ORIGINAL DATh SOURCE ~ CGS 93/ 2 HOV 1965 08.45 57.5 44.800H 114 '00W 3. bol1B 33 HO 005 P 'AHD/OR P ARI(IVAIS USED IH HYPOCD)TER SOLUTIOH ORIGIHAL DATA SOURCE ~ CGS

'938 7 NOV 1965 16 41 47.4 44s900H 117 000M~ 4.30HB 5, NO 007 P Al(D/OR P'RI,IVALS USED IH ORIGINAL DATA SOURCE ~ CGS llYPOCEHTER SOI-UTIOH 939 22 NOV 1965 22 53 13.7 45.100H 114.500M . 3.70HB 33 Ho 005 P AND/OR P'rtRIVALS USED IN HYPOCE)tTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS

'940 24 HOV 1965 05 15 lb.2 43.400H 125,500M 3.90NB 32 Ho 006 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOU(KE ~ CGS Q

941 3o DEC 1965 o4:oo=4a.o 50.200H 127.3aoM 3. 40t(L Ch ORIGIHAL DATh SOUIKE EPB N!KiHIT()DE ~ 3.40 t(L MOODMARD-CLYDE CONSULTANTS 23 APR 81 I

~~

rhr'.f: .;0

ti <

MOODMARD-CLYDE CONSULTANTS PAGE 50 CAT, DATE TIME(GH'f) LAT LOHG SL I)ffEH HAG SH I.I DIS 0 8 LOCATION AHD COHHEHTS HO. DAY-HO-YEAR HA-HIH-SEC (HH) (KH) (KH) 942 2 JAH 1966 10 10 51.0 51.500H 116.500M 4.50ML Ch ORIGINAL DATA SO)aiiE ~ EPB MAGNITUDE ~ 4.50 HL 943 13 JAH 1966 07 4 "06.0 49.670H 126.820M 4,00HI Ch ORIGIN'0 Dh'I'h SOURCE r. EPB MAGNITUDE ~ 4.00 ML 0 944 22 JAN 1966 12"-43-06.0 51 o380H 125.900M 3. 30HL Ch ORIGINAL DATh SOURCE .= EPB HAGNITUDE ~ 3.30 HL 945 28 JAH 1966 10 15 Obe4 43.600H 127.200M 5 10HB 33 NO 026 P AHD/OR P'A)iIVAIS USED IH HYPOCEHTER SOLUTIOH o

ORIGINAL DATA SOURCE ~ CGS 9 946 7 FED 1966 14t03:03,3 52,000H 128.000M 3.70MB 33 NO 006 P AND/OR P'RRIVALS USED IN IIYPOCEHTER SOLUTION ORIGIHAL DATA SOURCE CGS O 947 25 FED 1966 14 "57 00.5 44.700H 116.100M 3.50MB 33 HO 006 P AND/OA P'RRIVALS USED IN )IYPOCENTER SOLUTION ORIGINAL DATA SOURCE ~ CGS 0 948 2 MAR 1966 20t51 10,0 48 400N 121,600M

~ 3 ~ 10M) Ch ORIGIHAI DATh SO)TACE ~ EPD HAGNITUDE -- 3. 10 HL 949 9 MAR 1966 13=06=02.8 43.400N 126.000M 4 . 30HD 11. HO 010 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGDIAL DATA SQURCC ~ CGS 950 '3 HAR 1966 17~36=11 a0 48.400H 122 500M

~ 3 '0MI Ch OAIGIHAL DATA SOURCE MAGNITUDE - 3 00 HL

~

EPD 951 18 HAA 1966 18 05 23.6 43.700H 127.300M 5.00HB 33 HO 036 P AND/OR P'MiIVALS USED IH HYf'OCENTER SOLUTION ORIGIHAL DATA SOURCE ~ CGS 6 MAGNITUDE(FRACTIONf'OTATIONAVE) 4. 00 AUTIIORITY-BRK 952 26 MAR 1966 10 47 20.1 43.800H 128.000M 4sbOHB 33 HO 026 P hHD/OA PJMIVALS USED IN HYPOCEHTEA SOLUTION ORIGIHAL DATA SOURCE . CGS 953 22 APR 1966 04 16 25.0 48.000N 122.000M 3.50ML Ch ORIGINAL DATA SO)TACE EPB MAGNITUDE <<3.50 HL

. 9-4 28 hPR 1966 22 30 06,4 43.800N 127,800M 4.80MB 33 NO 047 P AND/OR P'RRIVALS USED IN )IYPOCFNTER SOLUTION ORIGINAL DATA SOURCE CGS 0 9i5 29 APR 1966 00 0/ 51.5 43.800H 127.800M 4.60MB 33 HO 023 P AHD/OR P'AfiIVAI8 USED IN HYPOCENTER SOLUTION ORIGINAL DATA SOURCE CGS 6 , 9. 6 29 HAY 1966 13 47 27,0 49.400H 114.900M 3.50HL Ch ORIGINAL DATh SOURCE EPB MAGNITUDE ~ 3.50 ML 957 10 JUN 1966 05 47"50.0 51.000H 1~~.200M 3. 40HL Ch ORIGIHAI DATA SOURCE r EPB MAGNITUDE ~ 3.40 HL 958 11 JUH 1966 17:34=30.3 47.833>> 122,550M IV 3.70H'3 HO CiEPORTED FELT IHFOAHhfIOH ORIGINAL DATA SOURCE ~ SEA 0

MOODMAAD-CLYDE CONSULTANTS 23 APR 81 l

WOODMARD-CLYDE CONS(JLTN(TB 23 APR ~8 '

PAGE 51 CAT, DATE TIlfs(GHT) LhT I.OHG SL INTEH )the SM ll DIS Q 8 LOCATION AHD COHIJEHTS HO. DAY-t<O-YEAR HR-)tltl-SEC (t(tt) (KH)(KH)

LOCAL t(AGNITUDE > 3. 70 SCALE --t(L AUTHORITY< SEA 959 'r4 JUH 1966 17-45 00.0 47.237H 122.433M W III RU TACO)th 960 12 JUL 1'Mh 02 49 59 ' 42 '00H 125aQQQM 4.00HD 33 HO 007 P AHD/OR P'RRIVALS USED IN )lYPOCEHTER SOLlJTIOH ORIGINAL DATA SOURCE = CGS 961 23 JUL 1M6 01-57-08.8 47.200N 119.500M 4. 30lls 33 HO 007 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTION 8 ORIGINAL DATA SOURCE ~ CGS

'M2 3Q Jl)L 1'Mb 18:02-38.5 47.20OH I~~.QQQM IV 3.40HB lb HO REPORTED FELT IHFOF@(ATIOH 006 P AHD/OR P'RRIVALS llSED IN HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS

@ 963 6 hlJG 1966 20"40 22.0 48.500H 124eQQQW 3. 10HL Ch ORIGltthl DATA SO(JRCE ~ FPD HAGrHITUOE ~ 3.10 HL

'I 964 10 hUG 1Mb ll 32:31.0 48.100H 124.800M 3. 30)tt Ch ORIGI)VJ DATA SOURCF EPB ttAGNITUDE ~ 3.30 tlL

' 965 11 AUG 1966 11 46 02.0 48.100H 124.700M 3. 40)tt Ch ORIGIHAL DATA SOURCE EPB HAGHIllJDE ~ 3.40 HL

'9 946 17 AUG 1966 14:39-.50.0 4e.200H I~~.QQQM 3, 80)JL Ch ORIGIHAL DATA SOURCE ~ EPB HAGHITUDE ~ 3.80 ttL 967 19 AUG 1'966 17:54:16.0 49.700N 126.900M 3. 20)(L Ch ORIGINAL DATA SOUfiiE ~ EPB HAGHITUDE ~ 3.20 ttL Me . 13 OCT 1M6 15~57-02.0 50.400H '118.000M 3. 10tlL Ch ORIGIltN DhTh SOt)tiiE ~ EPD

)JAGNITUDE ~ 3.10 HL O 969 14 OCT 1Mb 18 02 18.0 48.90QH 127.000M 4, 10NB 33 Hn 008 P AHD/OR P'RRIVALB USED IN tlYPOCENTER SOLUTION ORIGIHAL DATA SOURCF = CGS 970 2'9 OCT 1Mh 01-57-59,0 48 GQQH 1~ 700M 3 2QIK

~ Ch ORIGINA DATA SOUIKE ~ EPD HAGNITUQE ~ 3.20 )JL 971 1 HOV 1'Mb 1Q-22 53.6 47.600H 122.3QQM 3.00 RIJ JUST FELT TINE REPORTED BY USE 972 1 t(OV 1966 11-22-54.0 47 '00H 122.300M 3. QQI(B CA ORIGIHAL DATA SOURCE ~ EPB 973 6 HOV 1M6 10-50 54 0 40.300l'l ll'9asQQM

~ 3. GQHL Ch ORIGIHVJ DATA SOlJRCE I EPB HAGtlIT(JDE ~ 3.80 )JL 974 7 HOV 1966 23 28:32.3 44.000H 127.20QW 4.OQt~B 33 HO 007 r AHD/OR f ARRIVALB USED IH ttYPOCENTER SOUJTIOH 9 ORIGIHAL DATA SOURCE ~ CGB 9)5 13 HOV 1966 23 28 20.0 48.500H 119.0QQM 3. 20HL Ch OflIGIHAL DATA SOURCE ~ EPD 8 HAGHITUDE ~ 3.20 ttL MOODWARD-CLYDE CONSULTANTS 23 APR 81 f ~ t&%I S.

~ icky~

MOODWARD-CLYDE CONSULThtrrs 23 APR~

PAGE 52

'ch'r. DArE TIHE(Glar) LAT LONG SL IHTEN HAO SH H DIs 8 s LOCATION AHD COHHENTS HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (KH) 976 lb Hl)V 1966 20 20 44,0 48.300H 120.400M 3. 60HI CA ORIGIHAI DATA SOURCE ~ EPB 0 HAGHITUDE ~ 3.60 HL 97/ 20 HOV 1966 15"47 26,7 42o200H 125.80aM 4.50HD 33 HO 009 P AND/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 970 21 tlOV 1Mb 08 Ul 38.0 48.200H 121 400M

~ 3a30HL Ch ORIGIHAL DATh SOUIicE t- EPB HAGHITUDE = 3.30 HL 979' 5 DEC 1966 00.-56)XO.O 44.XaOH X27.BOOM 3.60H9 33 HO 000 P A)ID/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH ORIGItlAL DATh SOURCE ~ CGS 980 0 DEC 1M6 12 nn 26.0 40.300H 120.000M 3. 80N Ch ORIGIHAL DATh SOMME - EPB HAGNITUDE ~ 3.00 HL 901 22 DEC 1966 20" 13 10.0 40o300H 120 000M 3 o 20tll Ch ORIGIHAL DATA SOURCE ~ EPB 6

~

HAGHITUDE = 3.20 HL 6 902 24 DEC 1966 05:o2:11.5 n7.9ooH x2x.saow III 3.20 RU JUS'r FELT 903 25 DEC 1M6 05 02 Xoso 49.000H X22oXOOM 3.5QHL Ch ORIGIHAI DATh SOURCE ~ EP9 HAGNITUDE ~ 3 50 HL

~

O 904 30 DEC 1966 03~51".n0.3 nn,9ooH xx7.oaoM 4 . 20lnD 10 tfl) 005 P AHD/OR P'l4iIVALS USED IH tlYPOCEHTER SOLUTIOH ORIGB!AL DATA SOUfiiCE < CGS O

905 30 DEC 1966 10 ~-one3 42.500H 124.800M 4.30HB 33 HO OO7 I AND/OR f 'PiRIVALS USED IH IIYPOCENTER SOLUTIOH ORIGINAL DATA SOUfKE . CGS 8

906 3 JAtl 1967 20 13-36.1 45.595H 126.025M 4. 40tlB 33 ~ HO HYPOCENTER SOLUTIOH HELD AT 33 KH (tIORtIAL DEPTH) 027 P AND/Oft P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATh SOUPiCE ~ CGS 907 10 JAN 1967 06-50 20an 47e300tf X~.571M IV '.60HB 22 HO REPORTED FELT IHFOfiHATIOH Q 007 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH 6 ORIOIHN DATA SOURCE i-- CGG 9 900- 3 FEB 1M7 ol 57-05.2 43.277H 126.079M n. 10HB 33 8 HO IIYPOCEHTER SOLUTIOH IIELD AT 33 KH (NOfiHr'EPTH) 014 P htID/OR P'RRIVALS USED IH HYPOCEtfTER SOLUTIOH tlOAA FEELS THIS IS h LESS RELIABI E SOLUTIOH ORIGltIAL DATA SOURCE CGS 0 '09 6 FED 1'967 03-26-06.0 49.400H 127.400M 3. XOHL Ch ORIGIHAL DATA SOUPiCE ~

HAGtIITUDE = 3.10 HL EPD 990 7 HAR 1967 03"51-00.4 47.843H 122.~W 4.2OHB 35 HO 023 P AHD/OR P'RliIVALS USED IN IIYPOCEHTFR SOLUTIOH Q ORIGINAL DATA SOURCE = CGS 991 12 HAR 19'67 01-16 30.0 47.700H 122.700M 3 '0HL Ch ORIGIN/L. DATA SOUliiE ~ EPB HAGHxrUDE = <.2o HL MOODMARD-CLYDE COHSULTAtrrs 23 AF'R 81

0 MOODMARD-CLYDE CONS)JLTA)rrs 23 APR 0~

C3 0

PAGE 53 CAT ~

DA'I'E TII4E(G)rr) LAT LONG SL ItrfEH HAG SH H DXS o 8 LOCATI OH AHD COHHENTS HO. DhY-Ho-YEhR HR-HIH-SEC (HH) (KH)(KH) 992 5 I'ZR 1967 02 55 25 ' 40 200N 119.100M 3. 40N Ch ORIGINAL DATA SOIJRCE ~ EPD HAGHITUDE ~ 3.40 HL 993 16 APR 1967 15 04=27o3 43o416N 126.411M 4.20I'ID 33 4 HO HYPOCEhTER SOLUTIOH HELD AT 33 KH (NORHAL DEPTH)

,006 P hND/OR P'RRIVALS USED IN HYPOCEHTER SOUJTION HOAA FEELS THIS IS A LESS RELIABLE SOLUTXOH ORIGINAL nATA SOU)?CE cos 994 16 APR 1967 16 10 5n.6 43.361H 126.566M 4 '0HB 33 Ho HYPOCENTER SOL)rrION HELD AT 33 KH (HORHAI DFPTH) 013 P AND/Of? P'RRIVALS USED IH HYfiOCEHTER SOLUTIOH ORIGINAL DATA So)JRCE n CGS 995 20 APR 1967 14=43 04.Q 48.130H 119.350M 3. 20HL Ch ORIGINAL DATA SOIJRCE ~ EPD HAGHITUDE ~ 3.20 HL 996 2a APR 1967 15.-19-.33.0 40,200H 119.420M 3o30N CA ORIGINAL DATA SOURCE i-. EPB O HAGHITUDE ~ 3.30 N 997 lb HAY 1967 01:00-30.Q '9.000N I'+~,haau 3,40N ch ORXI)XNAL nhrh sour(CE EPI t)AGHITUDE ~ 3 40

~ HL

'990 16 HAY 1967 03 16 12.Q 49 '50H 12:?.550M 3 10HL s CA ORIGINA DATA SO)eCE - EPB S HAGNIT(IDE ~ 3.10 HL 6 999 '0 )'IAY 1967 02-09=30.5 43.625N 126,321M 4,00HD 33 8 HO )IYPOCE)rl'FR SOLUTIOH HELD AT 33 KH (NORHAL DEPTH) 007 P hHD/OR P'RRIVALS USED XN HYPOCEHTER SOLUTION HOAA FEFJ..S T)IIS XS A LESS RELXABLE SOLUTION ORIGXHAL l)ATA SOURCE CGS 1000 22 HAY 1967 02 59 31 4 ~ 43.628H 126.030M 4. 40HB 12 HO 016 P JIB/OR P'f&IVALS USED IH )IYPOCE)(TER SOLUTIOH oRXGINAL nATA SOURcE cos 1001 25 HAY 1967 23t22:34,5, 48,200H 1>>.010M 4.30HD 33 HO REPORTED FELT IHFOR)IATIOH tlYPOCE)frER SOLUTIOH HELD hT 33 KH (HORHAL DEPTH) 01/ P Al'ID/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOH ORIGINAL DATA SOVmX = CGS

. 1002 3 JIJN 1967 04 56'02.0 48.070H 119.500M 3 '0HL Ch ORIGIHAL DATA SOURCE ~ EPB HACiHITIIDE i 3.20 HL lo03 4 JIJN 1967 o =26:~w.a 52.2oaN Lso.aaou 3.40HL Ch ORIGINAL DATA SolJRCE EPB HAGHITUDE ~ 3 40 HL

~

1004 6 JUtl.1967 17"12-5T, I 40.200H 119 100M

~ 3.90HD 33 HO 000 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION ORXCilHAL DATA SOU)?CE css 1005 6 JUH 1967 17~59-04.0 49.4OaN 127.naau 3. 10N Ch ORIGINAL DATA SOUfiiE ii EPB HAGHIlltnE ~ 3.10 HL 1006 6 JUtt 1967 22.36 07.0 40.200N 119.000M 3.'iaHL Ch ORIGIHAL DATh SOIJRCE EPIJ HAGHITUDE ~ 3.20 HL MOODIJARD-CLYDE COHSIJLTAN'ls 23 A. R 81 Phf;E 54

~ V MOODMARD-CLYDE COHQJLTAH'I'S 23 APR 8~

e I.

i 0

PAGE 54 CAT. DATE TIklE(CikIT> LAT - LONG SL IHTEH HAG Skl ll DIS 8 8 LOCATI OH AHD CONkIEHTS k!O. DAY-HO-YEAR HR-k(1k(-SEC (HN> (I&>(Kkk) 1007 20 JUH 1967 11 47 44.0 48 '00H 123.200M 3. 60HL CA ORIGIHAL DATA SOURCE ~ EPB HACiHIlllDE = 3.60 HL 1008 2 JUL 1'M7 18-18 30.0 47.700H 119 '00M 3. 40N CA ORIGINAL DATA SOUfiiE ~ EPD klAGk)ITUDE ~ 3. 40 HL 1009 25 JUL 1M7 08"23 sno5 nn.nooN xxn.800M '.80)(B 33 N) 006 P AHD/OR P'RRIVALS ORIGINAL DATA SOURCE -

USED CGS IH klYPOCEHTER SOLUTION 1010 5 AUG 1'967 14 48 06.1 44.900H 118.000M 3.50HD W 006 P AHD/OR P'RRIVALS USED IH klYPOcfJ(TER SOLUlIOH ORIGIHAL DATA SOURCE i= CGS xoxx x3 NN xM7 08"-36.-15.8 nn.2ooH xx4.700M 3.80HB 33 W 009 P 4HD/OR P'RRIVAl 8 USED IH HYPOCEHTER SO1 UTION 8 ORIG Ik)AL DATA SOURCE Cfis 1012 13 NJG 1967 X3-35-38on 44.100H 114.800M 3. Balls 33 W oa5 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOI.UTIOH 6 ORICiINAL DATA SOURCE - CGS 1013 13 AUG 1967 16 44>>22.3 '3.500N 126.900M 5.00)IB 33 W 030 P AHD/OR P'RRIVALS USED IN llYPOCE)lTER SOLUTION 9 ORIGINAL DATA SOURCE CGS 1014 31 AUG 1967 19 06 44.0 49.600H 128.000M 4 '0HL CA ORIGIN'L. DATA SOURCE ~

EPP NACiNITUOE ~ 4.90 N 1015 23 SEP 1M7 oot30 ~ X7.3 44.200H 114.700M 3.90NB 33 HO 011 P AHD/OR PJ~RIVALB USED IH klYPOCEHTER SOLUTIOH 0 ORIOIHfd DATA SOURCE ~ CGS 1016 26 QJ'M7 05 51 11.3 42ooooH X2ba200M na90)IB 33 W 014 P AND/OR P'RRIVALS USED IH klYPOCENfER SOLUTIOH

(>RIGIHAL DATA SOURCE ~ CCiS 1017 7 OCT 1M7 15 07-onto 43.400H 126.900M 4,40HD 33 HO 014 P AHD/OR P'iSSIVALB USED IH HYPOCENTER SCLUTIOH Q ORIGINAL DATA SOURCE = CGS 1018 25 OCT 1M7 X9-~=33.6 43.400H 126.700M 4.40NB 33 NO 020 P AHD/OR P'RRIVALS USED IN klYPOCEHT'ER SOl.UTIOH 6 ORICiIHAL DATA SOURCE ~ CGS 1019 11 HOV 1967 10-47 51.3 43,800H 127.600M 4a3allD 33 W 011 P A."lD/OR P'RRIVALS USED IH NYPOCEHIER SOLUTIOI'I Q ORIGIk)AL DATA SOURCE = CGS 1020 11 HOV 1M7 11 17 02.6 44.000H xx4.500M 4. 10HD 10 HO 013 P A)J')/OR P'RRIVALS USED IH klYPOCENTEPi SOLUTIOH 6 ORIGINAL DATA SOURCE = CGS 1021 12 HOV 1'M7 02 23 42.0 53.900H XX7o300M 3.40HL CA ORIGINAL DATA CalJRCE - EPB O k(AGNITUDE ~ 3 ~ 40 HL 1022 13 k(OV 1967 17tnn 12,6 43.400H 126osooM 4.20HB 33 W 008 P AHD/OR P'RRIVALS USED IN k)YPOCEHTER SOLUTIl)H 0 ORIGIHAL DATA SOURCE ii CGS xa23 17 Hov 1967 07=12"-sw.7 43.9oaN xxn.300M 3,50HB 33 HO 008 P AND/OR P'RRIVALB USED IN k(YPOCEHTER SOLUTIOH ORIGIk)AL DATA SOURCE = CGS MOODMR'U)-CLYDE COHQJLTAkffs 23 APR 81 iver,g,p rc,

0 V

MOODMA.J)-CLYDE CO~ii JLTAHTS 23 APR 8~ i~ ~ ~

%P PAGE 55 CAT. DhTE TINE(Gtff) LhT LONG SL IHTEH HAG SH H DIS 0 0 LOCATION AHD COHtlENTS t!O. DAY-HO-YEhR HR-Hit!-SEC (HH) (t(H) (f05) 1024 4 DEC 1M7 00"40:45.2 43.700H 127.400M 4. 60HB 33 HO 030 P AHD/OR P'RRIVALS USE11 IH HYPOCENTER SOLUTION 0 ORIGINAL DATA SOURCE ii CGS 1025 6 DEC 1/67 14-"37-57.0 44.200H 114.300M 3 o 60l'19 33 HO 005 P ht!D/OR P'RI IVALS USED IH HYPOCENTER SOLUTION ORIGIt!AL DATA SOURCE ~ CGS 1026 9 DEC 1M7 10 31 "49.7 49.200N 127.700M 4.00HB 33 HO 016 P AHD/OR P'RRIVALS USE11 IH HYPOCDITER SOLUTIOH ORIGINAL DATA SOUftCE ~ CGS 1027 13 DEC 1M7 10 12 49.4 43.200H 125.900M 4.30f'19 '33 HO 013 P AHD/OR P'RRIVALS USED IN IIYPOCEHTER SOI UTIOH ORIGINAL DATA SOURCE CGS 1020 18 DEC 1967 13 23-16eb 42.600N 126 '00M 4.40HB 33 HO 009 P A)ID/OR I 'Rf(IVALS USED IN IIYPOCEHTER SOLUTION ORIGINAL DATh SOUI(CE ~ CGS 1029 23 DFC 1M7 Ibz34 14.7 44,000H 114.400M 3.70MB 33 NO 010 P AHD/OR P ARRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGItfAL DATA SOURCE ii CGS 1030 23 DEC 1967 17 07 20.9 43.'900H 114.400M 3.70HB 33 HO 009 P At!D/OR P'RRIVALS USEI) IN IIYPOCEHIER SOLUTION ORIGINAL DATA SOLII(CE = CGS 1031 2 JAH 1MO 14"09 44.1 43.900H 114 '00M 3. 60)19 33 HO 006 P AHD/OR P'FRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCF CGS 1032 9 JAN 1MO 11 44-52' 43.700N 127.600M 4.40HD HO 016 P AHD/OR P'RRIVALS USED II'I HYPOCEN'fER SOLIJTIOtl S ORIGIHAL DATA SOURCE ~ CGS o f:

P'RIIIVALS USED IN 1033 10 JAN 1960 23 GOL'01.0 44.600H 115a000M 3.50t1D 33 HO 006 P AND/OR ORIGINAL DATA SOURCE = CGS HYPOCE)ITER SOLUTION e[

1034 11 JAH 1M8 07"4 -18 ~ 4 44.000H 114.400M 4 . OOI"19 33 NO 012 P AHD/OR P'RRIWLS USED IH IIYPOCEHTER SOLUTIOH ORIGINAL DATA SO'LfRCE CGS 1035 19 JAH 1'MO 20"23 37.9 43.400H i26.600M 4 60)19

~ 33 HO 030 P AND/OR P'RRIVALS USLD IH HYPOCEHTER SOLIJTIOH ORIfiltlAL DATA SOURCE ~CGS 1036 27 Jht! 1960 08"20=Ã.2 45e700tt 1Ã.000M IV HO REPORTED FELT IHFORHATION 009 P AHD/Oft P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DA'fA SOURCE LJSE 1037 30 Jhtl 1960 01- il-07e5 43 '00H 126,500M 4) 10HB 22 NO 017 P QD/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTION ORIGIHAL DATA SOURCC CGS 1030 / FEB 1MO 00"35 29.6 43.600H 127.300M 5.10HB 33 HO 044 P AHD/OR P'W'IVALS USED IN HYPOCE)ITER SOLUTION ORIGIHAL DATA SOURCE ii CGS 1039 19 FEB 1960 18 03 10.4 43.600H 127.400M 4.00HB 33 N) 030 P AHD/OR P'RRIWLS USED IH HYPOCEHTER SOLUTIOH OILIGItfAL DATA Saul)CE CGS 1040 21 FED 1960 03M-"06.0 47.700H 114.300M 3aOOHB 33 t!0 006 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGINAL DATA SOURCE ~ CGS MOODMARD-CLYDE COt!SULTfÃfS 23 APR 81 C P I

Q MOODWARD-CLYDE COHSULTAHTS 23 APR S~

%F e, 0

PAGE 56 CAT. DAl'E TIHE(GIST) LAT LONG SL IHTEH HAG SH H DIS 0 S LOCATION AHD COH)LE)ITS Ho o DAY-)%-YEAR HR-HIH-SEC (HH) (KH)(KH) ~

1041 21 FED 1960 11" 8."52.9 44.400N 115.300M 3ahOHB 33 No 007 I AND/OR P'RRIVALS usED IN IIYPocEmER sol.uTIoN" ORIOII)AL DATA SOURCE = CGS 1042 13 HAR 1960 11-06-32.7 43.500H 126.500M 4.00HB 33 Ho 008 P AND/OR P'RRIVALS USED IN HYPOCEmER SOLUTIOH 8 ORIGINAL DATA SOURCE = CGS 1043 21 HAR 1968 12-31-46.9 421300H 126.200M No 017 P AHD/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOH Q ORIGINAL DATA SOURCE ~ CGS 1044 26 HAR 1968 18 22-2beB 47a700N 114.400M V 4.30HB 33 No REPORTED FELT IHFORIVLTIOH 9 010 P AHD/OR P'RRIVALS USED IN HYPOCEHI'ER SOLUTIOH ORIGIHAL DATA SOURCE ~ USE 6 1045 12 APR 1968 10226:08 0

~ 48.600H 116.170M 3 60HL

~ 18 CA HYPOCEN1ER DEPT)I AmIm)ED ORIG1HAL DATA Sour(CE = EPB 5 STATION RECORDIHGS USED IH 801 UTION HAGNITUDE ~ 3.60 HL 1046 28 hPR 1968 05 22-37.0 '4.300H 114,500M 4 I 00)& 33 Ho 006 P AND/OR P'RIVALS USFD IN IIYPOCENTER SOLUTIOH 0 ORIGDIAL DATA SOUf ICE CGS 1047 29 APR 1968 20 13 11.4 44,200H 114,600M 3.80HB 33 No 007 f AHD/OR P ARRIVALS usED IH f)YPOCEmER SOLUTIOH 0 ORIGINAL DATA SOURCE ~ CGS 1048 8 HAY 1968 12 17 13.4 43.567H 127.899M br 10HD 33 Ho HYPOCENTER SOLLTTIOH ILELD AT 33 KH (NOFHAL DEPTH)

Q 046 P hND/Off P'RRIVALS USED IH HYPOCEmER SOLUTION ORIGIHAL Dh'I'h SOIIRCE r CGS 9 1049, 8 HAY 1968 17 54".55.0 43.895N 127.003W 4.30HD 33 T No IIYPOCENTER SOLUTIOH HELD AT 33 KH (NOTOAL DEPT)I) 006 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH HOAA FEELB TIII I Is h LEGS RELIADI..E SOI..UTIOH ORIGI!'IAL DATA SOURCE ~ CGS 1050 9 HAY 1968 03 03!01.8 43.443N 12hs967M 5.20HD 33 Ho HYPOCEHTER SOLUTIOH HELD AT 33 KH (HolÃAL DEPTH) 058 P hHD/OR P'f&IVALS l)SED IH HYPOCENTER SOLUTION ORIGINAL DATA SOURCE CGS 1051 21 HAY 1968 05".07f57.0 50.800N 124.300M 3 ~ 40'8 Ch l)YPOCEIITER DEPT'SSIGHED ORIGI)IAL DAlh souRcE ~ EPB 8 STATIOH RECORDINGS USFD IH SOLUTIOH HAI3NITUDE ~ 3.40 HL 1052 27 HAY 19'bS 05 53 34.0 42.204N 119.749M 3.80HB 33 0 Ho HYPOCDITER SOLUTIOH IIELD AT 33 KH (HORHAL DEPTH) 9 006 P AHD/OR P'RRIVALS USED IH HYPOCEH)'ER SOLUTIOH NOAA FEELS THIS IS h LESS RELIABLE SOLUTION ORIGIML DATA SOUfLCE = CGS 1053 28 HAY 1968 00 08-49.0 42,262H 119.810M 4.40HD 33 e No IIYPL)CEmER SOLL)TIOH IIELD AT 33 Iof (HORHAL DET TN) 007 P A)ID/OR P'RRIVALS USED IH HYPOCEIITER SOI.UTION Nohh FEELS TIIIS Is A I Ess RELIABLE SOLUTION or;IGINAL DATA soURcE = cos O

LIOODMARD-CLYDE CONSULTS Ts 23 APR 81 Q

MOODMARD-CI YDE COHSULTA)rrs 23 APR 8~

PAGE 57 chr. DATE TIME(ma) LAT I oHG SL x)rrEH IIAG sM H Dxs a s LOCATIOH AHD COMMEHTS Ho. DAY-Mo-YEAR HR-MIH-SEC (MM) (KM)(KM) 1054 28 MAY 1968 00-";1:03.a '42.256H 119.768M 4.10MB 33 0: ha HYPOCENTER SOLUTXOH )IELD AT 33 KH (NORMAL DEPTH) 006 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH HQAA FEELS THIS IS h LEGS REI IABLF. SQLUTIOH ORIGIHAL Dhl'A SOURCE --. CGS 1055 28 MAY 1968 12-"lm'44.7 42.198H 119.812M 4.40MB h'0 HYI OCEHTER soLurxoH HELD Ar 33 KM (NORMAL DEPTH) 013 P AND/OR P'RRIV!V S USED IH HYPOCE)frER SOLUTIOH ORIGIHhl DATA SOUtiCF i= CGS O 1056 30 MAY 1968 00='"-59,8 42.300N 119 800M

~ 5. 10MB IMPORTED FELT XHFORMATIOH Q 041 P AND/OR P'RRI'VALS USED IH HYPOCENTER SOLUTXOH ORIGINAL DATA SOURCE ~ USE MASHITUDF (FRACTIONAL NOTATION,AVE)M i 10, 1057 31 MAY 1968 03-06 38.0 42.091H 119.780M 4.10MB 33 4 HQ HYPOCENTER SOLUTIOH HELD AT 33 KM (HAJJ DEPTH) 006 P hND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH HOAA FEELS 'lHIS IS h LESS PiELIABLE Sol UTIOI'I ORXGX)IAL DATA SOURCE CGS

'9 1058 3 JUH 1968 13 27 39.7 42.200H 119.800M V 5iOOMB 20 HO REPORl'ED FELT INFORMATION 029 P AHD/OR P'RRIVAI cl IISED IH HYPOCEHTER SOLUTIOH ORIGIN('J DATh SOURCE i-- USE

~ 10'.i9 4 JUH 1968 02 33-00.0 42 244H 119.775M

~ 3.70MD 15 . 8 Ho 007 P AHD/OR P'RRIVALS USED IH HYPOCEHTLR SOLUTIOH HOAA FEELS 'lllIS IS A LESS RELIABLE SOLUTIOH aRxGIHAL Dhrh SOURCE =- css 1060 4 JUH 1968 02=34 15.7 42.300N 119.900M VI 4.70MB 21 No IiEPORTED DAIIAGE 027 P AND/OR P'RRIVALS IISED IH HYPOCEHTER SOLUTION ORIGINAL Dhrh saunce . usE 1061 4 JUH 1968 02 38:29 0~ 42,315H 119.786M 4.00MB 25 HQ RFPolil'ED DAMAGF 008 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL Dhrh soilRCE = css 1062 4 JUH 1968 03-35-49.8 42.318N 119.755M 4 i 10MB 33 Ho HYPOCENTER SOLUTIOH HELD AT 33 KI4 (HaliMAL DEPTH) 011 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE - CGS 1063 4 JUH 1968 05"52 32.0 42 '88H 11'9.820M 4.00MB 34 4 NO 009 P AHD/OR P'rNIVALS USED IH IIYPOCEHTER SOLUTIOH Q HOAA FCCLS THIS IS A IZSS RELIABLE SOLUTION ORIGINAL Dhl'A SOURCE ~ CGS O 1064 4 Juh 1968 06 22 19 ' 42.205H 119 '47M '.30MB 33 Ho REPORTED FELT INFO!NATION IIYPOCG'ITER SOLUI'IOH HELD AT 33 KM (HOIIMAL DEPTH) 022 P AND/OR P'RRIVALS USED IH HYPOCENTER Sol UTIOH Orn'GINAL DATA SOURCE CGS 1065 4 JUN 1968 10 50 22.8 42.297H 119,900M 4.20MB 33 No REPORTED FELT INFORIIATIOH 8 HYPOCEH1ZR SOLUI'IOH I.IELD AT 33 KM (NORMAL DEPTH) 013 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOI UTIOH MOODMARD-CLYDF CONSULTANTS 23 APR 81 iieet'e'. fl

0 0

MOODMARD-CLYDE COHSULTAHl'8 23 APR 8~

PAGE 50 TINE(GHT)

CAT. DATE LAT LOHG SL INTEH HAG SH H DIS 0 0 LOCATION AHD COHHEHTS HO. DAY-Ho-YCAR HR-HIH-SEC (I%) <KH) (KH)

ORIGINAL DATA SOUIKC CGS 1066 5 JUH 1'960 04 "51:56 8

~ 42.305H 119.947M 4.70HB 21 Ho REPORfED FEI T I¹IOMIATIOH i 026 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAI DA rA soURCE ~ CG.

1067 5 JUN 1960 05-12-36.0 42i2hi4H 119.906M 4.40HI'3 l HO IIYPOCEHTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTH) 006 I NID/OR P ARRIVALS IISED IN HYPOCE)(TER SOLUTION HOAA FEELS THIS IS h LESS PXLIABLE SOLUTION ORIGINAL DAl'A SOUIKE ~ CGS e 1068 5 JUH 1968 07 37 45.0 42,251H 119.910M 4.00HB 33' Ho HYPocEHTER soLIrflol< HELD AT 33 KH (Hof<HAL DEPTH) 009 I AHD/OR P ARRIVALs USED IN HYPOCENrER soLUTIoN HOAA FEELS TIIIS IS A LESS RELIABIE SOI..UTIOH ORIGINAL DATA SOURCE CGS 6 1069 5 JUH 1960 08:04=40.0 42,m2)I 119,001M 3.30'3 e Ho HYIOCENrEf'OLunoH HELD Ar 33 KH <NOIYIIAL DE Tl>>

005 P A)<D/OR P ARRIVALS USED IH HYPOCENKR SOLUTIOH HOAA FEELS TIGS Is h LF~S RELIABI E GOLUTIOH ORIGINAL DAl'A SOURCE = CGS 1070 5 JUN 1960 00 20 38 0~ 42 ~ 291H 1 19 ~ 032M 4.00HB 33 8 Ho IIYPOCEHTER SOLUTIOH IIELD h'r 33 KH (Nor(HAL DEPT>>

006 P hND/OR P'RRIVALS US'ED IH HYPOCEHTER SOLUTIOH NOAA FEELS TIIIS IS A LEks RELIABLE SOLUTIOH ORIGINAL DATA SOURCE CGS 1071 5 JUH 1960 14 00.40.0 42.302H 119.060M 3.00HD 33 4 HO HYPOCEHTER SOLUTIOH IIELD AT 33 KH (HORHAL DEPTH) 006 P AHD/OR P'RRIVAI.S IISED IH HYPOCEHTER SOLUTIOH Hohh FEELS TIIIS IS h LESS RELIABLE SOLUTION ORIGINAL DAY* SaumX CGS 1072 12 JUH 1960 01 20-56 0~ 42.100H 120 000M

~ 3s40HB 33 4 HO REPORTED FELT IHFOPJIATIOH I-IYI'OCEHTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTH) 005 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGIHAL DATA SOURCE = USE 1073 12 JUN 1960 01 46"'>'>.4 42.103H 119.007M 4.30HB 33 Ho REPORTED FELT IHFORHATION 9 HYPOCEHTER SOL(ffIOH IIELD AT 33 KH (NORHAL DEPTH) 016 P AHD/OR P'RRIVALS USED IN HYPOCENfER SOLUTIOH ORIGINAL DATA SOURCE CGS 1074 19 JUN 1960 05 51 43.0 47.200H 122.500M IV . 4.00H' HO REPORTED FELT IHFORIIATIOH ORIGINAL DATA SOURCE ~ USE PAf(AHElERS OF EPICE)rfER FROH UNIV. MASHIHGTOH~ SEATTLE HAGHIT(IDE(FRACTIOHAL NOTA'I'IOHg hVE) =4. 00 1075 21 JIN 1968 20 33 20.0 42.214H 119 652M

~ 4.30HD 8 Ho 000 P Al'ID/OR P'ldlIVAI.S USED IH HYPOCENTER SOLUTIOH HOAA FEELS THIS Is A LESS RELIABLE SQLUTIOH ORIGIHAL DATA SOURCE ~ CGS MOODMARD-CLYDE CONSULTA)ITS 23 APR 01

.,a '.

MOODWARD-Cl YDE CONSULTht(TS 23.APR 8 0

PAGE 59 CAT. DhTE TIME(GMT) LAT LONG SL INTEN MAG SM H Dls 0 8 LQCAT I OH AHD COMMEHTS HO. DAY<(O-YEAR HR-MIH-SEC (MM) (KM) (IQI) 1076 22 JUtt 1968 09"39 53.5 42.193H 119eS-4M 4.30MB 33 ho REPORTED FEI T XNFOCJIATXON HYPQCE)ITER GOLUTIOH HELD AT 33 KM (NORMAL DEPTH) 016 P AND/OR P'RI?IVAI 8 USED IH )IYPOCEHTER SQLUTIOH ORIGINAL DATA SOURCE n CGS 1077 24 Jut( 1968 11 03-17.3 42.287H 11'9.839M 4.20te Ho 4YPQCEhJTER SOLUTION IIFJ D hT 33 KM (HQR)IAL DEPTH) 007 P AND/OR P'RRiVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ 'CGS 1078 26 JUN 196S 04:35:24.0 42.199H I~W,935M 4. 10IIB 33 4 HO HYPOCEttTER GQI.UTIOH HELD AT 33 KM (NORI~ DEPTH) 006 P htID/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH NQAA FEELS THIS IS h L~~~ RELIABLE SOLUTIOH QRIGIHAL DhTA SOURCE = CGS 1079 13 JUL 1968 20 51 30.0 44.321N 127a943M 4 HQ IIYPOCEHTER SOLIJTION HELD AT 33 Ktl (HNSIAL DEPTH) 011 P AND/QR P'RRIVALS USED IH IIYPOCENTER SOLUTIOH NOAA FEELS Ttlls XS A LEG( RELIABLE SOLUTIOH ORIGINAL DATA sauRCE ~ Css 1080 14 JUL 1968 03 32-36.0 50,580H 117.500M 3,70ML. 18 Ch IIYPOCENTER DEPTH ASSIGI(ED QRIGXHAL DATA SOURCE ~ EPB 4 STA'I'loll RECORDINGS USED IH SOLUTION MAGHIT(IDE ~ 3.70 ML 1081" 14 JUL 1968 07" 04 49.0 49.530H 127.950M 3. 50ML 18 CA IIYPOCEKIER DEPTII ASSIGHED I 0 ORIGIHAL DATA SOURCE EPB 4 STATION RECORDINGS usED IN SQLUTXQH MAG)adam = 3.50 1082 20 JIJL 1968 11C36:23.7 44.000N 114.400M IV 3.10MB 33 HO REPORIED FELT IHFORMATION HYPOCE)ITER GOLUI'XON HELD AT 33 KM (ttORMAL DEPTH) 006 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGXHAL DATA SOURCE ~ UGE 1083 23 JUL 1968 23t05-29.0 48.400H 114.900IJ 3. 10N 18 CA IIYPOCEHTER DEP'ltl ASSIGNED QRIGItthL DATA SOURCE EPB 2 STATION RECORDINGS USED IN SOLUTION MAGNITUDE ~ 3.10 ML 1084 26 JUI 196Q 22" >M 30.0 52.280N 118.680W 3,30N 18 CA IiYPOCEN'IER DEPTH AGSIGIIED 9 QRIGIHAL DATA SOURCE EPB 5 STATIOtl RECORDINGS USED IH SOLUTION MAGNITUDE ~ 3.30 ML 1085 27 JUL 1968 04-52-32.0 52.300H 118.700M 3. OOML 18 CA HYPOCENTER DEPI'H ASSIGN D ORIGINAL DATA SOURCE ~ EPB 1 STATION RECORDINGS USFD IH SOLUTION MAGNITUDE ~ 3.00 ML 1086 31 JUI 1968 07212-35' 43.673H 127.141M 4a20MD 33 8 NO HYPOCFHTER SOLUTXQI< )IELD AT 33 KM (NORMAL DEPTH) 015 P A)ID/OR P'RRIVALS USED IN HYPOCENTER SOLUTION WQODMARD-CLYDF CONSIJLTAIfl'S 23 APR 81 PAGF bn

6 MOODMARD-CLYDE CONSULTANTS 23 APR 8~

PAGE 60 CAT. DATE TIIIE(G)IT> LAT . LONG SL XHTEN HAG SH H DIS a 5 LOCATION AHD COHHEHTS HQ. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH)

Q NOAA FCELS THIS XS A LESS IttLIABLE SOLUTIOH ORIGINAL Dhfh SOURCE ti CBS 1087 10 AUG 1968 21 10 40.Q 52,880H 119.630M ',20HI 18 CA HYPOCEHTER DEPT)I ASSIGNED ORIGINAL DATA SOURCE tt EPB STATIOH RECORDIHBS USED IH SOIJJTXON HAGHITUDE = 3.20 HL 1088 12 AUG 1968 18 4 I 17' 13 ~ 519H 126 369M 4. 20HD 6 'HO

1. QQ7 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE - CBS 1089- 15 AUB 1968 13E43:28.0 5Q.400N 114,200M 3.30HL 18 Ch IIYPOCEH1ER DEPIH ASSIGIIED ORIGINAL DAl'h SOURCE ~ EPB 4 STATIOI'I RECORDINGS USED IH SOLUTIOH HAGHITUIK = 3.30 HL 1090 29 AUG 1968 10 00 44t7 44 022H 127t859M

~ 4. 30)IB 4 NO 011 P f'JID/OR P'RRIVALS USED IN IIYPOCENTER SOLUTIOH I'lOAA FEELS THIS XS A LEGS RELIABLE SOLUTIOH ORIGINAL'J DATh SOURCE ti CGS 1091 30 AUB 1968 13 ~Q-X).b 44.231H 115.010M 3.70HD 33 8 HO HYPOCENTER SOLUTIOH IIELD AT 33 KH (HORHAL DEPlH) 005 P hND/OR P'RRIVALS USED XH HYPOCENTER SOLUTIOH HOAA FEELS TIIIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATh SOURCE ~ CGS 1092 30 AUG 1968 18 42:M.9 44.315M 114.889M 3. FQHB 33 HO HYPOCElffER SOLUl'IOH IIELD AT 33 KH (HORHAI DEPTH) 007 P AND/OR P'RRXVALS USED IH lffPOCEHfER SOLUTIOH ORIGINAL DhTh SOURCE - CfiS 1093 31 AUG 1968 08 31I18.0 49.420H 116.920'M 3.70HL 18 Ch IIYPOCEN'fER DEPlll ASSIGHFD ORIGIHAL DATA SOURCE ~ EPB 12 STATION RECORDINGS USFD IH SOLUTION HAGHITUDE ~ 3.70 HL 1094 6 SEP 1968 12-"16:30.0 47 950H 1>>.BQQM

~

"'.90HL 18 Ch HYPOCENTER DEF'Tll ASSIGNED ORIGINAL DATA SOURCE = EPB 19 STATION RECORDINGS USED IH SOLUTION HACiHITUDE = 3 90 HL 1095 15 SEP 1968 11 27 ~M.5 43.959H 125.277M 3t90HD 8 HO IIYPOCEHTER SOLIffION HELD AT 33 KH (HORHAL DEPTH>

0 006 P AHD/OR P'RRIVALS USED IH HYPOCEHl'ER SOLUTIOH

)IOAA FEELS TIIIS IS h LESS RELIABLE SOLUTION ORIBIHAL DATA SOURCE =- CGS 1096 25 SEP 1968 20" 09-34.2 47.800H 122,700M IV 2.50H' HO REPORTED FELT INFORHATIOH ORICitNAL DATA SOURCE ~ USE PARAHETERS OF EPICEHTER FROH UHXV. Mh-IIINGI'OH SEATTLE HAGHIl'UDE(FRACTIONAL NOTATION AVE) 2. 0 1097 26 SEP 1968 15 20-16.0 49.000N 128tQQQM 3. QQHL 18 Ch HYPOCE)ffER DEPTH A-. IGHED ORIGINAL DATA SOURCE = EPB MOODMARD-CLYDF COHSULTfJffS 23 APR 81

~ ~ <<

WOODMEN-CLYDE COMSIJLTJATS 23 APR 8~

PAGE 61 CAT ~ DATE TIME(GHT) LAT LONG SL IHTEN HAG SH H DIS Q 5 LOCATION AND CO)IHENTS ttQ. DAY-HO-YEAR HRH1 XII-SEC (HH> (KH) (KH) 4 STATXOtl RECORDXttGS USED IN SOLUTIQH HAGHITUDE <<3<00 IIL 1098 1'9 OCT 1968 lb.+~ lb, 1 42.172M 125.819M 4.30IIB 33 8 HO HYPOCEHTER SOLUTIOH IKLD AT 33 Ktt (HORHAL DEPTH>

007 P httD/OR P'RRIVALS USED IN HYPOCE)ITER SOLUTION HOAA FEELS TIIIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SO(JRCE << CGS 1099 1 MOV 1968 10-24 59.0 50.'968H 124.159M . 4.50Hli 33 HO IIYPOCEHTER SOLUTIOM IKLD AT 33 Ktl (NORMAL DEPTH) 032 P AND/OR P'RRIVALS USED IH HYPOCEtITER SOLUTION ORIGItthL DATA SOIJRCE CGS 1100 13 NOV 1968 ll 59 39.0 52<320)I 120.120M 3. 20HL 18 Ch HYPOCE)ITER DEPTH ASSIGNED ORIGIHAL DATA SOURCE <<EPB 5 STATION RECQRDXt,t)S USED IN SOLUTION tlAG)IXTUOE 3. 0 N 1101 22 HOV 1968 11=34-21.0 48.750H 124 500M

~ 3. 10HL 18 Ch HYPOCE)(TER DEPT)I ASSIGNED ORIGINAL DATA SOURCE = EPB 3 STATIOH RECORDINGS USED IH SOLUTION HAGHITUDE <

3 10 N

~

1102 29 NOV 1968 17" 43:00.0 44.172H 114,398M IV UE 6 HI 8 OF CLAYTON IDAIIO 1103 30 tIOV 1968 14:40:08.8 46.500M 122.400M V, 4.30)IB 13 NO REPOI'TED FELT IHFORHATXOH 010 P AND/OR P'RRIVALS USED IH HYPOCEtJTER SOLUTIOH ORXGIHN DATA SOURCE =. USC 1104 13 DEC 1968 08~50:08.0 52,400tt 120.200W 3.70N 18 Ch tlYPOCEHTER DEPTH ASSIGNED Q ORIGIHAI. DATA SOUI)CE ~ EPB 5 STATION RED)RDXHGS USED IN SOLUTIOH tIAGHITlIDE ~ 3.70 N 1105 15 DEC 1968 09.12.05.9 45.807M 127.013M 4.30MB 33 MQ tIYPQCEtfrER SoufrIQN )KI D A'r 33 KH (NOR)IAL DEr TII>

021 P AND/UR P'RRIVALS USED IH HYPQCEIITER SOLUTIOM ORXGIHAI.. DATA SOURCE .= CGS 1106 18 DEC 1'968 13-09 54.6 45.767H 127 051M

~ 4<60MB 33 HQ IIYPOCEHTER SOLIJTIOM IKLD AT 33 KH (HOF:HAL DEPTH) 025 P hMD/QR P'RRIVALS USED IH HYPOCEHTER SOLUTIOM ORIGINAL DATA SOURCE CGS 1107 21 DEC 1968 19 56 42.0 43.080H 126.190M 4.60)IB tIO IIYPOCEHTVT( SOLIJTIOM IIELD AT 33 101 (HOMAL DEPTH) 029 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOM ORIGIIIAI DATh SOURCE CGS 1108 23 DEC 1968 12 39 48.'9 43. 05t! 125.'969W 4,40HI'3 HYPOCENTER SOLUTIOH HELD AT 33 KH (NORMAL DEPTH>

012.P htID/OR P'RRIVALS USED IH HYPOCEHTER SOI UTXOM ttQAA FEELS TIIIS IS h LESS RELXABI.E SOLIJTION ORIOItIAL DATA SOURCE <<CGS 1109 25 DEC 1968 09 42 45.8 43. 0 H 126.740M 3<90MB 33 IIYPOCENTER SOLVfXOM IKLD h'f 33 KH (HOTEL, DEPTH) 014 P AND/OR P'RRXVALS (ISED IH HYPOCEIITER SOLUTIOH MOODWARD-CLYIJE COttNJLTA)ITS 23 APR 81 0

~3.1 .

8 MOODMARD-CLYDE CONSULTANTS 23 FJ'R 8 PAGE 62 CAT.. DATE TIKE(Gtff) I.AT LottG SL IIITEN HAG SH H DIS 0 8 LOCATION AHD COHtIEHTS HO. DAY<(O-YEAR HR-HIH-SEC (HH) (KH) (KH) ~

ORIGINAL DATh SOURCE . CGS 1110 6 FEB 1969 11 03.41.0 43,454H 126.027M 4.30HB 33 N) HYPO(:ENTER SOLUTION HELD AT 33 KH (NORHAL DEPTH) 018 P AHD/OR P'RRIVALS USED IH HYI'OCENFER SOLUTION ORIGIHAL DA'FA SOURCE i-- CGS 1111 14 FED 1969 08='-36.1 48.940N 123.070M V , 4 NO REPORTED FELT INFOR)IATIOII ORIGIHAL DATA SOURCE = USE PAra'JIETEI:S OF EPICENTER FROH UNIV. MASHI)IGrON, SEATTLE HAGHITUDE(FRACTIONAL HOTATIONghVE))"4 50 ON'.50

~

1112 5 O'Jt 1969 11 43 07.3 45.700N 122.800M RU O.S.U. ~ USCGGS 1113 20 HAR 1969 00 39 12.0 48.100N 121.000M 3.20HL 18 CA tlYPOCEHTER DEPTH MSIGtlED ORIGIHAI DATA SOURCE = EPB 3 STATION RECORDINf& USED IH SOLUTIOH HAGHITUDE ~ 3.20 HL 1114'3 HAR 1969 18 58 55)Q 53.300H 126.000M 3. OOHL 18 Ch HYPOCEHTER DEPT)I AI FIGN D, ORIGItIAL DATA SOURCE = EPB 5 STA'I'Iott RECORDINGS USED IH SOLUTIOH HAGHITUDE = 3.00 HL 1115 1 APR 1969 16"45 09)1 47)900N 114.300M VII 4)70HB 10 NO REPOR.rED DA.FAGE 021 P hND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGItIN DA'I A SOURCE ) USE ~

LOCAL HAGHITUDE ~ 4.30 SCALE ""HL hUTIIORITY~ CGS 1116 1 APR 1969 17"05 18.1 47.984tl 114.387M 4,5OHB 15 NO I¹PORTED FELT IHFORtIATIOH 007 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGIN)J Dh'fA SOURCE ~ CGS 1117 6 APR 196'9 00.18-00.0 47.900H aa4.400M V 2 NO REPOhfED FELT IHFORHATIOH ORIGINAL DATA SOURCE USE gott-IN S'I RU)IEtfl'AL

.1118 13 APR 1'969 20 25 37.9 47,932tl 114.293M 4.0oHB 16 No raPOFfrED FELr ItIFORHATION OO7 P hND/OR P ARRIVALS USED LH HYPOCENTER SOLUTION ORIGINAL DhTA SOURCE ~ CGS aaa9 19 APR 196'9 05 46=03.2 45.888N 119.741M 3. 14HI' Ull 1120 20 APR 1969 02" 19 lb.0 4)8.250H 119 272M

~ 3.20HC 6 UW 1121 22 hPR 1969 13 24 "02.6 44.20QN 114.600M IV 3,60HB 33 4 HO REPORTED FELT IHFORHAFIOH HYPOCEtffER SOLUTIOH HELD AT 33 KH (tIORHAL DEPTH) 006 P AHD/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOH HOAA FEELS THIS IS A ITS RELLADLE SOLUTIOH ORIGIHAL DATA SOURCE ~ USE 1122 26 F'J)R 1969 10."41 53 0~ 44.200N 114 '00M VI 4. 90l'IB 13 NO F¹VOF(TED I@HASE 036 P A)ID/OR P'RRIVhLS USED IN HYPOCEHTER SOLUTIOH MOODMARD-CLYDE COIIQILTAtffS 23 APR 81

,4p

i) 0 MOODMARD-CLYDE CONQ JLTARTS 23 APR 81 PAGE 63 CAT. DATE TIME(Gtff) LAT LONG SL ItfIE)I MAG SM M DIS 0 S LOCATION AND COM)IEHTS NO. DAY-MO-YEAR MR-MIH-SEC (MM) (KM)(KM)

ORIGINAL DATA SOURCE LOCAL MAGHITUDE ~ 4.75 USE SChLE ~ AUTHORITY= BRK 1123 27 APR 196'9 21. 1 31.8 44.230N 114.556M 3.70MB 33 NO MYPOCEHTER SOLUTION HELD AT 33 Ktl (HOWL DEPTH) 006 I AtfD/OR P'RRIVALS>>BED Itl IIYr OCEtITER SOLUTION ORIGIt!AL Dh'I'h SOURCE tt CGS 1124 28 APR 1969 11 40-00.0 47.900H 114t300M V Z NO REPORTED FEL'I INFORMATIOH ORIGINAL DAl'A SOURCE tt USE NOtt-INSTRUMENTAL 1125 2 MAY 1'969 05.06.27.9 44.071M 114.'7AM 3.60MB 33 4 NO IIYPOCE)(TER BOI.IJTION IIFLD AT 33 IQ'I (HOf'IIAL DEPTH) 005 P AND/OR P'RRIVtILB USED IH MYPOCENIER SOLUTIOH NOAA FEELS TIIIS IS h LEM~ RELIABLE SOLIJTION ORIGINAL'ATA SOURCE CGS 1126 3 MAY 1969 19r25:00.0 47,900N 114,200M IV UE DIG IKHt MOtff.

6 1127 4 MAY 1969 15:40:01.0 53.700N 118.000M 3. 20I& 18 Ch HYPOCEN1ER DEPTH ASBIGNFD ORIGINAL DATA SOURCE ~ EPB 5 SThTION RECOF(DINGS USED IN +MLUTIO)I tiAGHITUDE ~ 3.20 ML 1128 5 MAY 1969 07-09=10t9 44.100H 114t500M V 4.60MB 33 NO REPORTED FELT INFORMATIOH el:

HYPOCEtfl'ER SOLUTION HELD AT 33 KM (tIORtitIL DEPTH) 018 P AND/OR P'RRIVALS I)BED IH MYPOCEHIER SOLUTION ORIGII'IAL DATA SOURCE tt USE 1129 6 MAY 1969 00 05:00.0 47.900H 114.200M IV UE BIG hf(Mt tiOHT.

1130. 6 MAY 1969 06 40-LT 47.900M 114o500M V E)I PROCTORt MONf.

1131. 7 MAY 1969 01 -.40.-00 0

~ 47.900N 114,200M IV UE BIG ARM MOI I'.

1132 9 MAY 1969 19 06 09.7 47.646H 119t801M 3.34MC UM POSSIBLE EXPLOSION.

1133 10 MAY 1969 17-48-49.8 49.097N 118.718M 3.401& 20 8 NO 007 P AHD/OR P'Rf(IVALS USED IH IIYPOCENTER SOLUTION NIJAA FEELS 11318 IS A LESS RELIhBLE SOLUTIOI'I ORIGINAL DATA SO~i t'GS O

1134 ll MAY 1969 03 50 11.9 48.194N 119 228M

~ 3. 10MC 3 1135 13 MAY 1969 23 24=44.0 49'.785H 114 t796M 4.2OMD 33 8 NO HYPOCENTER SOLUTION HELD AT 33 KM (tIOMAL DEPTH>

008 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH NOAA FEELS THIS IB h LESS RELIABLE SOLUTION ORIGIltAL DATA SOURCE ~ CGB 1136 1'9 MAY 1969 18 59 26 5 47 808N 118e285M

~ 3.70tiC 3 UM 1137 21 MAY 1969 08 45:00.0 47.844H 114,298M IV UE BIG ARM AND PROI fORg MONT.

MOODMARD-CLYDE CONSTANTS 23 APR 81 PAGF 64

~

6 MOODMARD-0 YDE COH~MLTAtrfs < (KN) (KH)

Q 1138 26 HAY 1M9 23 22 47ob 49'990H 1141962M 5 OOND 36 Ha HYPOCENTER SOLUTIOH HELD AT 33 KH (tlald)AL DEPTH) 006 P AHD/OR P'RRIVALS USED XH HYPOCENTER SOLUTIOH NOAA FEELS 'r)IXS IS h LESS RELIABLE SOLUTIOH ORIGIHAL DATA SOURCE "- CGS 1139 31 HAY 1969 02 24 32.3 44 152H 1141552M

~ 3,30NB 33 >>o )IYPOCENTER soLuTxaH HELD AT 33 KH (HORNAL DEPTH>

005 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION HOAA FEELS T)IIS IB h LESS RFLIABLE SOLUTIOH ORIGI)IAL DIYrh Soul(CE .= CGS 1140 3 JUH 196'9 06:01-57.3 44.097H 114.603M 3 s70HB 33 HO )IYPOCEHTER BOLUTIOH HELD AT 33 KH (NOI)t)AL DEPTH) 009 P AHD/OR P'RRXVALS USED IH HYPOCE))IVER SOLUTIOH ORXGIHPJ DATA SOURCE -- CGS 1141 6 JUH 1969 12 00 00.0 47 865H 114.277M

~ IV UE FELT DAYTotl NOH1'.

1142 '9 JUH 1M9 08-~8"30 8 47.900N 114o300M V 4. 20ND 5 HO REPOSED FELT XHFORI&TXOH 020 P AND/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH ORIGIHAJ DATA Sal)RCE <<". USE 9 LOCAL HAGHITUDE = 4.20 SCAI< =NL AUT1)ORITY~ CGS 1143 9 Jl>H 1M9 09"30 00,0 47.910H 114 203M

~ III uE r'oLLxws, No)fr.

1144 9 JUH 1M9 10"-45" 00.0 47 900H 114 200M

~ ~ IV uE DXG hR)I, NOHr ~

'O 1145 11 JUH 1969 13 03 57,1 47 900N 114,200M

~ XV n. 10NB 31 HO )1EPORfED FELT IHFORNATIOH 005 P AHD/OR I 'RRIVALs usED XH HYPOCENTER soLuTraH ORIGINAL DATA SOURCE - USE 1146 11 JUH 1969 21 45 05s2 48.844H 12lo971M 3.60NB 33 8 Ho )IYPOCE)rfER BOLUTIOH HELD AT 33 KH (HOQIAL DEPlH) 005 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIG IHAL DATA Sa(IRCE ~ CGS 1147 21 JUH 1969 ll 06 48.8 47 '900H 114 500M

~ ~ V 3,10NB 33 Ha ITEPORTED FELT It)FOINATIOH HYPOCE)ITER SOLllrXOH IIELD AT 33 KH (HORHAL DEPTH) 006 P AHD/OR P'f&IVALBUSED IH HYPOCENTER SOLUTION ORIGINAL DATA SOURCE ~ USE 1148 25 JUH 1969 02.16.00.8 47 900N 114.300M

~ 3.80NB 8 Ho REPORTED FELT It)FORHATIOH oob F AHD/oR P ARRIVALS usED xH HYPOCE))TER SOL(ITIOH ORIGINAL DhTA SOURCE ~ USE HAG)IITUDE(FRACTIO)IALNOTATION AVE>W.80 AUTHORITY-1149 25 JUH 1M9 ll 35 54.3 47.971H 114.335M 4,30)ID 24 Ho 007 P AHD/OR P'RRIVALS ORIGINAL DATA SOURCE ~

USED CGS IH HYPOCENTER Sol UTIOH 9 )H NoT GIVEN 11 -o 1 JUL 1969 08-.48:00.0 47,9ooH 11n.200M xxx UE FELT BXG IJ)I<, NO)fr. AN aR 1151 7 JUL 1'M9 05".27 16,8 43,771N 126.660M, 4.20NB 33, 'HO )IYPOCE)ffER SOLUTIOH HELII AT 33 KH (HORNAL DEPTH)

<<I.

010 P AHD/OR P'RRXVALS USED IN HYPOCEHTER SOLUTIOH MOODMARX<<-CLYDE COHSULTAÃfs 23 APR 81 Q I

~ < 4, ~

MOODMARD-CLYDE COHSULTAI(TS 23 APR 8~ lq ~

6 PAGE 65

! ~

Q CAT. DATE TIkK(GMT) LAT LONG SL IHTEII HAG SH H DIS 0 S LOCATIOH AHD ~ COHHEHTS NO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (KH) klOAA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIOIHhL DhTA SOURCE ~ CGS 1152 30 JUL 196'9 23 19".54.5 49.767H 114.033M 4 40MB o E HO NON-TECTOHIC ASQKIhTED PkKt(GHEHA:

ACCIDFPITAL CO)EEROLLED GR SUSPECTED EXPLOSION P06 P Ak(D/OR P'RRIVALS USED IH IIYPOCEHTER SOI UTIOH PhRAHETERS OF OTIIER EXPLOSIOHS ~ HOT COHPUTED SOLUTION, ORIOIHAL DATA SOU(ICE I"- CGS 1153 31 JUL 1969 23 17-50 ~ 1 49,767tl 114.833M 5. 00MB E HO NOH-TECTONIC ASS(3CIATED PIIEk(G)KHh.

ACCIDEHTAL COHEROUMD, OR S(ISPFCTED EXPLOSIOH 007 P Ak!D/OR P'E&iIVALS USFD IH HYPOCENTER SOI.UTIOH PARAHETERS OF OTHER EXPLOSIGNS ~ NOT COMPUlED SOLUTION ORIGIkl/J DATh SOURCE CGS e

1154 1 AUG 1969 15 58 24 7 47 787H 119(595M

~ 3. 10HC UM POSSIBI E EYPI OSIOH 1155 2 AUG 1969 03 04 16.3 47.198H 117o375M 3.40HC 15 1 156 I AUG 1969 15 31 09 0

~ l7 683H 119 )7

~ ~ M 3.45HC 5 UM POSBIBLE EXPLOS ION ~

1157 8 hlJG 1969 07 05.00,0 50,781M 110.345M 4.50HIJ E NO NOtt-TECTOHIC AS. OCIATED PIKHOIKHA ACCIDEkll'AL COHI'ROLLED GR SUSPECTED EXPLOS ION 008 P AHD/OR P'RRIVALS USED IN HYPOCEtE('ER SOLUTION PARAMElKfN OF OTHER EXPLOSIGHS HOT CGHPUTED SOLUTIOH ORIGINAL Dh'EA SOURCE ~ CGS 1158 0 AIJG 1969 17 04.52.2 47,744H 119.444M 3. 10HC 3 IJM POSSIBLE E)'PLOSIOII 8 1159 9 hlJG 1969 07:05 00.0 50.'781N 110.345M ',50MB E NO HON-TECTOHIC ASS()CIATED PIKHOI'KHA ACCIDEt(TAL, Cak(TROLLED, GR SUSPECTED EXPLOSION 006 P AND/OR P'RRIVAI 'JSED 1H kfYPOCEHTER SOLUTIOH PARAkKTERS OF OTIKR EXPLGSIG)IS klOT COMPUTED SOLUTIOH Q ORIGINAL DATA SOURCE ~ CGS 9 1160- 10 AUG 1969 07 0'5 00.0 50.781H 110.345M 4.60MD E HO HOH-TEC10HIC ASSGCIhl'ED PIKIIOMENh-ACCIIJEHTAL, CONTROLLED OR SUSPECTED EXPLOSIOH e[

008 P AHD/OR P'RRIVALS USFD IH l(YPOCEHTER SOLUTION PARAMEIERS OF QTtKR ElQ'LOSIUHS ~ NOI'OMPUTED SOLUTION ORIGINAL DATA SOIJRCE ~ CGS

'9 1161 ll CBJO 1969 07 05"00 0 50.781H 110.345M 4 40t(D s E NO HON-1'ECl'0)IIC ASSOCIATFD PIKkmkKKA 8 006 P AHD/OR P'l ACCIDEk(TAL COIEI'ROIJ ED, OR SUSPECTED EXPLOSIOH I'IVALS USED IH IIYPOCEHTER SOI.UTIOII PARAMETERS OF OTIKR EXPLOSIGHS p HOT COHPUTED SOLUTIOH ORIGINE'ATA SOURCE ~ C(IO

'1162 13 AUG 1969 16 12-16.9 48.483H 126.474M 4.60HD 33 NO tlYPOCEHTER SOLIJTION HELD AT 33 KH (HOP~ DEP1H) 024 P AND/GR P'RRIVALS USED IH k(YPOCENTER SOLUTIGH ORIGIHAL DA'I'h SOURCE ~ CGS MOODMARD-CLYDE COHSIJLTAtEI S 23 APR 01 gP+.Xpk; ala PAOF 66

0 IJOODMARD-CLYDE COHBULTA)ffS 23 APR A

PAGE 66 CAT ~ DATE TIME(GMT) LAT LONG SL IHTEH MAG SM II DIB 0 8 LOCATION AHD COMMEHTS No. DAY-MO-YEAR NR-MIH-SEC (MM) (KM)(KM) 1163 14 AUG 196'9 07 05 00 0

~ 50.781H 118.345M 4.60MB E No HOH TECTONIC ASSOCIATED PHE)IOMEHA ACCZDE)ITALO'OHTROLLEDy OR SUSPECTED EXPLOSIOH 006 P AHD/OR P'RRIVALB USED IH IIYPOCEtffER SOLIJTIOH PARAMEfGIS OF OTIIEft EXPLOSIOHS g HOT COMPUTED SOLUTIOH OR1GINAJ DATA SOIJRCE CGI 1164 14 AUG 1969 16 31 "46.6 47.633N 119.588M 3.58MC 1 UM POSSI BIN EXPLOSION, 6

1165 15 AUG 196'9 07 05 00.0 50.781H 118.345M 4.60MB E tlo HOH-TECTONIC ASSOCIATED PIJEHOME)13-ACCIDEHTAL~ CONTROLLED OR SUSPECTED EXPLOSIOH 005 P AND/OR P ARRIVALS USED IN IIYPOCEHTER SOLUTIOH Q I m4MElms oF OTHER ExpLoszotls, NoT coMpuTED sal.uTIOH ORIGIIIAL DnTA SOURCE cos 1166 16 AUG 1969'7:05 00.0 50,781H 118.345M 5s20MD E NO HOH-TECTONIC ASBOCIAlED PIIE)IOMEhtn ACCIDENrAL, cotITROLLED, oR susf EcTED EXPLoszoN 007 p Ah'D/DR p'Mizvnl B USED IH IIYpocEHTER soLUTION 0 f ARAMEIER OF OTHER EXf I.OSIONS HOT COMPUTED SOLUTIOH ORXGIHAL DATh SOIJRCE - CGS O

1167 17 AUG 1969 07.05-00,0 50.781H 118.345M 5 '0MB E N) NOH-TECTOHIC ASSOCXAfED PIIEHOMEI<n" hcCIDEtITAL, CotITROLLED, OR SUSPECTED EXPLOSIOH 007 P AHD/OR P'F5'IVALB USED IH klYPOCEHTER BOLUTIOH PARNKTERS OF OTHER KGKQSIotts t tIOT COMPUTED SOLUTION ORIGIHAL DATA SOURCE " CGS 1168 18 f'JJG 1969 23 21-33ob 49.767H 114.833M 5.00IS E Ho tIOH-lECTONIC ASSOCXATED PIIEHOIIE)IA-ACCIDEN'fALp COHTROLLEDg OR SUSPECTED EXPLOSIOH 007 P AHD/OR P'RRIVALS USED IH klYPOCEHTER SOLUTIOH PARAMEIERS OF OllIER EXPI OSIOHS, NOT COMPUTED SOLUTIOH ORZGIHAJ DA'I'n SOURCE tt CGB 1169 19 AUG 1969 o7"-a5=oo.a So.781H 118.345M . S.ootfB E tlo Hatt-rEc'roNzc nssocxnrED pfIENOIIEIita.-

ACCIDEtITAL COHTROLLED OR S.ISPECTED EXPLOSION 009 P ANII/OR P'RF;IVALB USED IN IIYPOILEHTER SOLIJTIOH I ARAIIETERS OF OTI(ER EXf~oszotts, NoT caMPuTED SOLuTzoH ORIGIN'J DATA SOURCE ~ CGB 1170 20 AUG 1969 07 05 00.0 50a781H 118.345'M 5. 10MB E Ho NOH-TECTotIIC ASBOCXAIED PfKlIOMEHA-ACCIDEHTAL COHTROIJ.ED OR SUSPECl'ED EXPLOSIOH 007 P AND/OR P'ITRIVALB USED IN IIYPOCDITER SOLUTII)H PARAMLIERS OF Ozt(ER EXPLOSXOFIS, NOT COMPUTED SOLUTIOH ORIGXHl'J DATA SOURCE 'GS 1171 21 AUG 1969 07205 00,0 50.781H 118,345M 5.00MB E HO NOH-TECTOHIC ASSOCIATED PHF)IOMEHh-ACCIDEHfhL, COHTROLLED, OR SUSPECTED EXPLOSIOH 007 P AHB/OR P'RRIVALS USED IH tIYPOCEHTER SOLUTIO)I PARAMETERS OF OTHER EXPLOSIOHS HOT COMPul'ED SOLUTIOH ORIGINAL DA'fn SOIJRCE ~ CGB MOODMARD-CLYDF COHBULTAIffs 23 APR 81

~ A

') MOODWARD-CLY1)E CQH(RLTAtffS 23 APR 0~

r PAGE 67 CA'C. DATE Tlt(E(GHT> LAT LONG SL INTEH HAG Sl'1 H DIS 0 8 .LOCATION AHD COHHEHTS HQ ~ DAYW-YEAR HR-HIN-SEC (HH > (KH) (KH) 1172 21 AUG 1'M'9 23"40 30.3 49.767H 114.833M 5.20HB E HO NOH-TECTONIC ASSOCIATED PHEHO)(Ehh-

/ ACCIDENTALp COtffROLLEDg OR SUSPECFED EXPLOSIOH 006 P AHD/OR P'RRIVALS USED IH ]lYPOCEt(TER SOLUTIOH PhRAHETERS OF OTHER EXPLOSIOHS ~ HOT COHPUTED SO(.UTIOH ORIGINAL DArA SOURCE - CGS 1173 22 AUB 1969 07 05 00.0 50o781H 118.345M 4o90t(B E HO HON-1'ECTONIC ASSOCIATED PHENOHEHA-ACCIDEH1'hL COHTROI l.ED, OR Sl4~CTED EXPLOSION 011 P AND/OR P'RRIVAl.S USED IH I(YPO(ENTER SOLUTIOtl PARAt(ETERS OF 011(ER EXPLOSIONS HOT COHPUTED SOLUTIOH ORIGIHN DAl'A SOURLE CGS 1174 23 AUG 1969 07 05 OO.Q 50e781H 110.345M 5. 60HB E NQ HOH-TECTOHIC ASSOCIA'IED Pt(ENOt(ENA:

ACCIf)Et(TALp COtffRQLLEDg OR SUSPECTED E.'(PLOSION 013 P At!D/OR P')FRIVALS USED IH HYPOCENTER SOLUTIOt(

PARAt(ETERS OF QT((ER Em QSIOt(S, NQT COt(PUTED OLUTIQN ORIBIt(AL DATA SOURCE ~ CGS 1175 24 AUG 1969 07205 00o0 50.781k 118o345W 5, 10HB HQH-fECTOHIC ASSOCIATED P)KHQt(Ekh ACCIDENTAL COHFROLLED, OR SUSPECTED EXPLOSIOH 009 P AHD/OR P ARRIVALS USEI) IH HYPOCENTER SOLUTIOH PARAFETERS OF OTl(ER EXPLOSIOHS, HQT COHPUlED SOLUTIOH ORIBIHAL DATA SOURCE ii CGS 1176 26 AN) 1969 01 a 25 21 0

~ 51 900H 120. 000M

~ 3.00HL 18 CA tlYPOCEHTER DEP'ft( ASSIGHED ORIGIHAL DATA SOURCE ~ EPB 4 SThTIOH RECORDINGS USH) IH SOLUTIOH t(AGHIllfDE ~ 3.00 HL 9 o 1177 27 AUG 1969 18-00-00.0 47.892)l 114.303M - IV UE FELT PROCTORS t(Otff.

1178 29 AUG 1'969 13-04-00 0~ 47.900k 114.200M IV 'UE BIG hRt(> t(Ot(T.

1179 29 AUB 1M9 23 17 33.5 49 '67k 114.033W 5. 10HB tlOK~TECTOt(IC ASSOCIA'IED Pt(EHO)(E)lh-ACCIDENTAL COHTROLLED OR SUSPECTED EXPLOSIOH 005 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH PARA)(ETERS OF Oft(ER EXPLOSIOHS g HOT CQHPUTED SOLUTIOH ORIGINE'J DATA SOURCE ~ CGS 11Pi0 31 AUG 1969 ibt27-35,0 46.285H 120.776M 3,06HC '2 l)M 1101 13 SEP 1969 08-M:47.7 47,748H 119.424M 3.31HC 1 UW POSSISLE EXPLOSIOH.

1102 15 SEP 1969 00-02 39 0 ~ 47.900H 114.200M VI 4,30HB 19 HO F~ORTED DAHAGE 010 P hHD/OR P'RRIVALS USED IH HYPOCEt(TER SOLUTION ORIGINAL DATA SOURCE ~ USE t(ABHITUDE(REDACTIONAL NOTATIOH AVE)=4.30, AUTHORITY-LOCAL t(lBNITUDE - 4. 10 SCAI.E =t(L AU1)(OR1TY= CGS

@ 1103 15 SEP 1M9 03:22-"41,0 47 '900H '114.200M

~ IV 4.00HB 10 NO REPORTED FELT IHFlÃJWFIOH 007 P hHD/OR P'RRIVALS l)SED IH HYPOCEt(FER SOLUTIOH MOODMARD-CLYDE COHSULTAtffS 23 APR 81

6 MooDMARD-cLYDE cot,mn.TANrs 23 APR 8~ fI ~, ~

r PhoiE 68 6

CAT. DATE TIHF (Gt(T) LAT LONG SL'HTEtl HAG SH H DIS 0 8 LOCATION 'AHD COHHENTS tlo DAY-tho-YEAR 'R-HIH-SEC (t%) (KH)(KH)

Q

~

0 ORIGINAL DATA SOURCE vsE LOCAL tfm)HITUDE 3.60 Sc(J.E tfL AUTHORITY CGS 1184 16 SEP 1969 22 00 44.7 49.767H 114.833M 5 oot(f E Ho tfoN- TEcToHIc Assnczh'rED r t(EttntfEHA:

ACCIDEtlTALg CONTROL(XDy OR SUSPECTED EXPLOSIOH

/oh P AHD/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTIOH PARhtfETERS OF OTttER Exr Losznns, HoT cotfPUTED soLuTzoN ORIGIHAL DATA SOURCE i-. CGS 1185 30 ~~ 1969'2"00 41.0 49.767N 114.833M 5.10tS E Hn HOH-TECTONIC Assnclh'lED PP&tnflE}!A=

ACCIDEN1'AL Cot)TROUKD OR SUSPECTED EXPLOSI OH 006 P AHD/OR P'RRIVALS US~ED IH HYPOCEHTFR SOLUTIOH r ARAt(ETERS oF OTtfER Exr Loszotfs, HOT cow uTED soLuTIoN ORIGINAL DATA souRCE ~ cos 9

1186 30 SEP 1969 22" 49" 51.0 43) 628H 127.325M 4.70HB 33 Hn ttYPOCEttTER SOLUTIOH lfELD AT 33 l04 (t!OPmAL DEPTH) 02'9 P AND/OR P'RRIVALS USED Itl HYPOCEHTER OLUTIotl ORIGINAL DA'Ch SOURCE CGS 1187 1 OCT 1'969'7 11 11e3 48.506H 126I485M 4o70HB Ho 031 P AHD/OR P'RRIVALS USED IH ttYPOCEtt'rER SOLUTIO)l ORICiIHAL DATA SOURCE ~ Cois 9 1188 2 OCT 1969 10 09 40,0 48.600H 121.700M 3)ootfL 18 tlYPOCEtfTER DEPTH ASSIGNED Q ORIGINAL DATA SOURCE EPB 3 STAfIOH RECORDIHGS USED IN SOLUTIOH t(AGtlITuDE 3.0o N.

0 1189 3 Oar 1969 O7-.15=OO.O 47.9OOH 114.2OOM IIZ uE BIG hm, Hoer.

11'90 7 OCT 196'9 08 F 11 LT 47.900N 114.500M V EH PROL"IORr HONT ~

1191 9 OCT 1969 07 45 16.3 43.707H 127.430M 10 043 P AHD/OR P'RliIVALS USEl) IN ttYPOCEHTER SOLUTIotl 0 ORIGINAL DATA SOURCF = CGS vhotfITUDE . 5.5 uszHG HOT> AVERAGE tfs (zhsPEz Feme A) 1192 9 OCT 1969 17 07 55.0 46.766H 121.716'M V 4.00H'EPORTED FELT IHFORHATION ORIGINAL DATA SOURCE USE 6

PARhtiETERS OF EPICEtrrER FROH UNIV. MACHIHGTON SEATTLE HAGNITUDE(Ff(ACTIOHALNOTATION AVE)- 4. 00 l'193 14 OCT 1969 05-15=54.0 47 800N 114.200ll

~ V 4. 40tfB Nn REPORTED FELT ItlFORtfhzzoH I 006 P AND/OR P'RRIVhLS USED IN HYPOCEtfTER SOLUTIOH ORIGIHN DATA SotfriiE i-. USE 1194 15 OCT 1969 08 ~M:00.5 47.320H 121 855M

~ 3.97HL 5 D Gs RHS 0)26iltSE 86 7gZSE 70 7gHSTH 8gGAP 334 gD 75 9 1195 1 HO'J 1969 15 44 24 3 47a916H 121.850M V n.ooH' Hn REPORTED FELT IHFofmATIOH

~

ORIGIt<AL DATA SOURCE = USE 9 PhldAETERS OF EPICEHTER FROH UHIV. MASHIHG1 OH ~ SEATTLE tfhntlITUDE(FRhCTI(NAL HOTATIOHyAVE)~4. 00 6

1196 5 ttn)J 1969 00 41 29.2 47.139H 118.242M 3. 48HC 2 POSSIBLE EXPLOSIOH, Q

MOODMARD-CLYDE COHafLTAHrs 23 APR 81 Q '

L

)

~ LT /jan

0 WOODMhRD-CLYDE CONSULTAIfls 23 APR 8~

0 PAGE 69 CAT. DATE TIHE(GHT) LAT LOHG SL IHTEH HAG SH H DIS O S LOCATION AND COHHENTS No. DAY-Ho-YEAR HRWItt-SEC (HH) (KH) (KH) 1197 7 Hov 1969 00-.11-.29.1 47.9ooN 114.200M VI n,30'O REPORTED DAHAGE 008 P AND/OR P'RRIVhLS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DATA Sol)RCE = USE HAGHITUDE(FRACTIONAL NOTATIOH,AVE)"R.30 1198 10 HOV 1969 07 "38-44.7 48.550H 121.510lt V 4,70H' M HO REPORTED FELT IttFORHATIOH ORIGIHAL DATA SOURCE USE PARAHI".lERS OF EPICE)?TER FROH UNIV. MMHINNOHg SEhTTLE HAGNITUDE(FRACTIONAL NOTATION AVE) 4. 70 1199'8 HOV 1969 08 13:15eo 48.000H 128oooOM ~ 20 HI 18 CA HYPOCEHTFR DEPTII ASSIGNED ORIGIHAL DATA SOURCE EPB 5 STATIOH RECORDINGS USED IN SOLUTIotl HAGHITUDE ~ 3 20

~ HL 1200 28 Hov 1969 09 51 32.9 47.400H 1Ã.700M Iv 3.50H' HO REPORTED FELT It)FORHAl'IOH 8 ORIGIIIAL DATA SOURCE USE PARAHElERS OF EPICENTER FROH UNIV. MASIIINGTOH~ SEATTLE HAGHITUDE(FRACTIONAL HOTATION,AVE) 3.50 1201 28 N)v 1969 21 55 07.7 49.767N 114.833M n 80I~D

~ E HO HON-TECTONIC ASSOCIATED PttEHOHEIIA ACCIDEHTALi COHTROIJ.EDp OR SUSPECTED EXPLOSIOH 009 P Allo/oR r 'RRIVAI s usED IN HYPOCENTER soLuTIoN Phl?AHErERS OF Ort(ER EXI&oslotls NOT COHPUTED SOLUTIOH ORIGIHAL DA'I'A SOURCE ~ CGS 1202 4 DEC 1969 21 46 11.0 R8.500H 127.500M 3,20HI 18, CA HYPOCENTER DEPTII ASSIGNED ORIGIHAL DATA SOURCE EPB STATION RECORDINGS USED IH SOLUTION HAGHITUDE = 3.20 HL 1203 11 DEC 1969 03il9 oooo 47o900H llna200M IV 'UE BIG hRHg Hotffe 1204 20 DEC 1969 21-54-46.0 49.767H 114.833M . 4.90HB E HO HOH-TECl'ONIC ASSOCIATED PHEHOHEHh=

8 ACCIDENThL, Cotll ROLLED OR SUSPECTED EXPLOSIOH 012 P AHD/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOH PARAHETERS OF OTHER EXPI OSIONS NOT COHPUTED SOLUTIOH ORIGIHPJ DATA SOURCE ~ CGS 1205 22 DEC 1969 02"nn 00.0 47.900H 114.200M IV UE BIG ARNE HOHT ~

1206 23 DEC 1969 21-M-55.7 49.767H 114.833M R.oaHB E HO HON-TECTONIC ASSOCIATED PIIEIIOHEHh-ACCIDEHI'AL CONTROILZD, OR SllsPECTED EXPLOSIOH 005 P A)ID/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH Phf?AHETERS OF OTIIER EXPLOSIOHS NOT COHPUTED SOLUTIOH ORIGlttrJ DATA souRcE = cos 1207 26 DEC 1969 05 28i33.8 48,000H 114 100M

~ IV HO REPORTED FELT INFOR)IATIO)l HYPOCEtITER SOLUTIOH IIELD AT 33 KH (HORHAL DEPTH) oo6 P AND/OR P'RRIvhcs usED IN IIYPOCENTER soLuTIoN ORIGItIAL DATA SOURCE = uSE

~

MOODWARD-CLYDE COHSULTAtlTS 23 APR 81

,~

PAGF. 70

I 0

~

MOODMARD-CLYDE CONSULTANTS 23 APR

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~

L PAGE 70 CAT. DATE TIME(GMT) LAT LONG SL INTEH MAG SM M DIS Q S LOCATIOH AHD COMMENTS NO, DAY-MO-YEAR HR-MIH-SEC (MM) (KM)(KM) ~

1208 19 JAH 1970 12 11 18.7 47.886N 114.269M 4 ~ QOMB 18 HO 008 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE . CGS 1209 3Q JAH 1970 00 5 31.5 4bo843H 118.284M 3.04MC UM POSSIBLE EYZLOSIOH.

1210 31 JAH 1970 ll 31 29.3 42.245H 126.468LI 4.50MB 33 HO HYPOCENTER SOLUTIOH MELD AT 025 P AND/OR P'RRIVALS IISFD 33 KM (HORMAL DEPTH)

IN HYPO~!TER SOLUTIOH ORIGINIJ DATA SOURCE CGS 1211 4 FED 1970 >M?39 54 0 47.900N 114.200M 20 NQ REP(mrED m T INFORIIArlON 8

~

006 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH ORIGIHAL DhTh SOURCE .= USE 1212 9 FED 1970 06 19-37 0 47sb28N 120.289M 3. QBLC 2 ULl POSSIBLE EYZLOSION.

1213 10 FEB 1970 20 21-11.8 '47.700H I'>>.300M V: 3.90H'3 NO REPORTED FELT INFORMATIOH 008 P AND/OR P'RRIVALS USED IN HYPOCEI'ITER SOLUTIOH ORIGINAL DATh SOURCE ~ USE LOCAL MAfiHITUDF 3,90 . CALE =ML hUTMORITY CGS 1214 22 FEB- 1'97Q 03 31.34.5 43.916N 127.875M 3.90MB 33 . 8 NO HYPOCFHTER SOLUTIOH HELD AT 33 KM (HOR)LAL DEPTH) 015 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH o)

NOAA FEELS T)IXS IS h LESS RELIABI E SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 1215 22 FED 1970 15 22=43.6 43m 489N 126.819M 4.50MB 33 NO HYPOCENTER SOLUTIOH IIELD AT 33 KM (NOfJ1AL DEPTH) 021 P AND/OR P'RRIVALS USFD IH HYPOCEHfER SOLUTION ORIGIHAL DAfA SOURCF ~ CGS 1216 22 FEB 1970 21 40 46.3 47.900H 114.300M IV NO REPORTED FELT IHFORMA'fIOH 006 P AHD/Of< F" ARRIVhLS USED IH HYPOCEHIER SOLUTION ORIGINAL DAfh SOURCE USE 1217 4 W'B 1970 15t26 40.0 48. OOH 128.000M 3o 40ML 18 CA IIYPOCEHTER DEPIH ASSIGNED ORIGINAL DATA SOLIRCE = EPB 4 STATION RECORDIHGS USED IH SOI UTIOH MAGNITUDE ~ 3,40 ML 1218 20 MAR 1970 19 29 30.5 43.601H 127 307M

~ 4,70MB 33 NO IIYPOCE)ffER SOLUTIOH HELD AT 33 KM (NOFOLAL DEPTH) 033 P AHD/OR P'RRIVALS lfSED IN HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE ~ CGS 1219 21 MAR 1970 17=59-54.0 53.650H 114.440M 3. 10)L)I 18 CA IIYPOCE)ffER DEPTII ASSIGIIED STANDARD ERRORS T-2 X~0.14 Y -0.05 Z= 0 ORIGINAL DATA SOURCE - EPB 5 STATIOH RECORDINGS USED IH SOLUTIOH MAGNITUDE ~ 3.10 MN 1220 2 hPR 197Q ll"18 11 e5 47.900N 114.100M IV 33 e NO rmORTED FEL'f IIIFORMATION IIYPOCFJIfER SOLUI'IOH HELD AT 33 KM (NORMAL DEPTH) 006 P AND/OR P'RRIVALS USFD IH HYPOCEHTER SOLUTIOH LIOODMARD-CLYDE COHSULTAHTS 23 APR 81 I

Q O

lI i

~

6 MOODMAf(D-CLYDE CONSULTANTS 23 APR 8 Q

1'AGE 71 i(

CATI DATE TI?(E(Gl'ff) LAT LONG SL ItffEN HAG St( t( DIS Q 8 LOCATIOH AHD CO?(MENTS ~

HO. DAYWO-YEAR HR-HIN-SEC (NH) (Kt() (Ktl)

HOAA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGIHAL DATh SOURCE - USE 1221 5 APR 1970 15-00 24 0 ~ 47i500H i>M.500M 3. 20HL'8 CA HYPOCENTER DEPTI.I ASSIGNED ORIGINAL DATh SOURCE ~ EPB 5 STATION RECORDINGS USED IN SOLUTIOH

?AGHITUDE ~ 3.20 t(L V~ 14 APR 1970 12:24:m.a 47.000H I>>.500M 3 20?(L

~ 18 CA tlYPOCE?ffER DEPTH ASSIG?(ED ORIGDHhl DATA SOURCE -.- EPB 5 STATIO?l RECORDINGS USED IN SOLUTIOH HAGHITUDE = 3.20 t(L 1223 14 t(AY 1'970 03 35 54.3 42.519H 126.386M 4.70?lB 33 HO HYPOCE?ffER SOL(ffIOH tlELD AT 33 Ktt (NORHAL DEPTH) 6 036 P AND/fJR P'RRIVALS llSED IN HYPOCENTER SOLUTIOH

'GS ORIGINAL DATA SOURCE 1224 14 t(AY 1970 08 18:47.2 42,431N 126.582M 4i10?JB 33 4 HO NYPOCEHTER SOLlJTIOH HELD AT 33 KI4 (HOICIAL DEPTH) O 011 P ht(D/OR P'lKIVALS USED IH HYPOCE?lfER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOLlJTIOH ORIGIHAL DATA SOURCE = CGS 0

1 15 18 t(AY 1970 05 29 54.0 48.600H 122.700M 4. 00?(D 11 NO REPORTED FELT IHFORHATIOH 008 P AHD/OR P'RRIVALS USED IH HYPOCE?lfER SOLUTIOH Q ORIGIHAL DATA SOURCE USE 1226 23 t(AY 1970 15 08 04.5 47.800H 114 I200M, V 3.60HB 17 HO REPORTED FELT 1?5 ORMA'fIOH 009 P AND/OR P'RRIVALS USED IN HYPOCE?lf ER SOUJT ION ORIGIHN DA'I'h SOURCE ~ USE 28 HAY 1970 17 38"32.1 48.450H 126.659M 4. 90?(B 3 HO 057 P AHD/OR P'RRIVALS USED IH llYPOCENTER SOLUTION DhTA SOURCE

)

8 1228 11 Jl)L 1'970 10-24=31 ~ 1 48,181N 121i304M

'227

. 3.02 32 'M

'A ORIGI?CQ STAT IOHS USEDa 4i ~ fNS '

CGS 03'AG STD ERR' 23 23 JUL 1970 13=31:40.0 48.500H 128.000M -

3 80?(L

~ 18 I-lYPOCEtlTER DEPT?l ASSIGNED ORIGINAL DATA SOURCE = EPB 5 STATIOH RECORDINGS USED IN SOLUTIOH MAGNITUDE = 3 ~ 80 NL 1230 7 AUG 1970 20-~/=44.4 44.440H 117.320M 3. 90?lB E HO HOH-TECTOHIC ASSOCIATED PHE?JO?(E?lh ACCIDEHTAL COtlTROLLED OR SUSPECTED EXPLOSIOH 005 P AND/OR P'f4(IVALS USED IN HYPOCENTER SOLUTIOH PARAYiHERS OF OT?(ER EXPLOSIOHS l ?IOT CO?(PUTED SOLUTIOH ORIGIHAL DATA SOURCE ~ CGS O

1231 23 AUG 1970 ll 11 40.7 46.744H 119.344M 3.35NC 2 UM O

1232 1 SEP 1970 12 33:50.1 47.900H 114.400M V 4.00MB 5 HO REPORTED FELT IHFORI(ATIOH 006 P AND/OR P'RRIVALS USED IH HYPOCE?(TER SOLUTIOH ORIGIHAL DAI'A SOURCE ~ USE O 6

MOODMARD-CLYDE COHSULTA?lTS 23 APR 81 PAGF 77

4OODMARD-CLYDE CONSULTANTS 23 APR 0~

PhGE 72 CAT. DATE TINE(GHT) LAT LONG SL IkffEH HAG SH H DIS 0 8 LOCATION AHD COHHEHTS N) . DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH)

Q 1~~ 4 SEP 1970 10-21-36.2 47a609N 121o779M 3.24- 15 UM STATIOHS USED.= 5 RHS .06 HAG STD ERR..40 1234 4 SEP 1970 21T23.21 0~ 40.500N 127.500M 3. 50)II 18 Ch HYPOCENTER DEPTH l'ASSIGNED ORIGINAL DATA SOl)RCE '~ EPB 5 STATION RECORDINGS USED IN SOLUTIOH HAGHITUDE = 3.50 HL 1235 ll SEP 1970 02 20 54.1 46.612H 120.386M 3. 47)IC 10 UM 1236 11 SEP 1970 03 17:06.3 42.178N 126 598M

~ 4.60)IB 33 4 N) HYPOCENTER SOI.UTIOH HELD AT 33 KH (HOR)IAL DEPTH) 015 P h)ID/OR P'RRIVALS USED IN HYPOCE))TER SOLUTION NOAh FEEI S T)IIS IS h LESS RELIABLE SOLUTION ORIGI)IAL DATA SOURCE ~ CGS 1237 2 OCT 1970 15 56 24.7 46o760N 119.371M 3.34HC 4 1238 19 OCT 1970 07 15 00.1 46.903H 117.683M 3. 20)M: 3 1239 24 OCT 1970 22-32-07.9 47.334H 122 373M

~ 4 09

~ 16 UM STATIONS USED=. 5 RHS ~ 08, HAG STD ERR .00 Q

12 IO 2 NOV 1970 11 57 33 0 52o700N 127 ~ OOOM 3. 10HL 10 Ch HYPOCENTER DEP'IH ASSIGHED ORIGIHAL DATA SOURCE = EPB 3 STATION RECORDINGS USED IN m UTION MAGNITUDE ~ 3.10 HL 1241 6 NOV 1970 18 15 lb.0 46.691H 110.883M 3.00)IC 3 UM 1242 8 hOV 1'970 00"-00 11.0 44a355N 115o570M 3.80)IB 33 0 NO )IYPOCENTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTH) 8 006 P AND/OR P'f(RIVALS USED IH HYPOCENTER SOLUTIOH HOAA FEEI.S T)IIS IS h LESS RELIABLE SOI..UTIOH ORIGIHAL DATA SOURCE = HOS 1243 16 NOV 1970 02.-41.-47.0 50.600N 120.600M 3.20HL 10 CA )IYPOCENTER DEPIH ASSIGHED ORIGINAL DATA SOURCE = EPB 2 SThl'ION RECORDINGS USED IH SOLUTIOH HAGHI11IDE ~ 3.20 HL 1244 26 HOV 1970 03 11 42.8 43.776H 127.449M 5.60HD 14 NO 115 P AND/OR P'RRIVALS USED IH HYPOCEH1ER SOLUTIOH ORIGIHAL DATA SOURCE = NOS HAGHITUDE = 5 9 US~IN)3 HOAA AVE)W'AK HS (IASPEI FORHULA)

~

HAONITUDE(FRACTIO)IALNOTATION AVE) =6. 00, AUTHORITY-BRK 1245 27 HOV 1970 11 18-45.0 44.457H 115.609M 3.50HD 33 4 HO HYPOCEHTER SOLUTIOH IIELD AT 33 KH (NOR)If'EPTH) 0 006 P AHD/OR P'RRIVhLS USED IH HYPOCENTER SOLUTIOH I)IIS IS h LESS RELIABLE SO(.UTIOH HOAA FEELS ORIGINAL DATA SOURCE ~ HOS 1246 27 NOV 1970 22" 17>>50.0 52 640H 119 130M

~ ~ 3.00HH 10 CA HYPOCENTER DEPT)l ASSISI(ED ORIGIHAL DATA SOURCE = EPB 7 STATION RECORDING'SED IN Saf UTION

)M)GNITUDE ~ 3.00 HH MOODMARD-CLYDE CONSULTANTS 23 APR 01

0 MOODMARD-CLYI)E COHSULTANTS 23 APR 8~

IW s!

PAGE 73 CAT ~ DATE TI)IE(G)ff) LAT LONG SL ItffEH HAG SH H DIS 0 8 LOCATION AHD COHMEHTS DAY-HO-YEhR HR-HIH-SEC (KH>(KH)

I 0 NO. (HM>

247 29 HOV 1970 02 15-53.5 47.388H 121.522M 10 UW STATIONS USED.= 5y RHS>> .12i HAG STD ERR>>,52 1248 1 DEC 1970 08 06 41,8 52.661N 119.336M 4 ~ 20)ILI 15 NO REPORTED FELT It)FOR))ATION HYPOCE))TER SOLUTXOH DEPTH RESTRAXHED BY GEOPHYSICIST 005 P AtlD/OR P'RRIVALS USED IH MYPOCEN'IER SOLUTION t)OAA FEELS THIS IS A LESS fKLIABLE SOLUTION ORIGIHAL DATh SOURCE ~ HOS 1249 5 DEC 1970 02 lb.30.9 44.466H 115.447M 3.90MB 33 HO HYPOCENTER SOI IJfXON k)ELD AT 33 KH (HORHAL DEPlH>

009 P AHD/OR P'RRXVALS USED IN HYPOCENTER SOLUTIOH ORIGIHAL DATA SOIJRCE>> HOS 02=m=lb.9 1250 5 DEC 1970 44.348H 115.494M 4.30HB HO )IYPOCFJITER SOI UTIOH HELIJ AT 014 P AHD/OR P ARRIVALS ORIGIHAL DATA SOIJRCE>> NOB u~33 IHKHHYPOCE)riER (NOR)lhl. DEPTH)

SOLUTION 9

@ 1251 5 DEC 1970 08-17 46.0 44.492H 115.501M 3.70HD 33 HO t)YPOCEHTER SOLUTIOH )IELD AT 33 Kt) (NORMAL DEPTH) 6 007 P hHD/OR P'RRIVALS USED IN HYPOCE))TER SOLUTIOH ORIGINN DATh SOIJRCE>> HOS 8

1252 6 DEC 1970 09 33 47.5 44.476N 115.422M 4.30HB -33 NO )IYPOCEHTER SOLIJTION IIELD AT 33 Kl'I (NOf@IAL DEPTH) 008 P AND/OR P'RRIVALS IJSED IH HYPOCENI'ER SQLUTIOH ORIGIHhl. Dh'fA SOURCE =. HOS 6 1~3 9 DEC 1970 17 10 24r ~ 9 46.849N 120.8S4M 3.42HC 3 UW POSSIBLE EXPLOSION ~

9 1254 12 DEC 1970 03 15 03.2 43.472)l 127,035M 4,60HB 33 HO HYPOCEHTER SOLUTION HELD AT 33 KH (NOR)IAL DEPfH) 013 P hND/OR P'RRIVALS USED IH HYPOCE)!TER SOLUTXOH tlOAA FEELS 'THIS IS h LESS RELIABLE SOLUTION ORXOI)IAI. DATA SOURCE ~ NOS 12%5 14 JAN 1971 08 29 37.4 47.295N 1>&.354M 3.76 UM STATIONS USED=. 5, RHS- .07 HAG BTD ERR .2/

1256 22 JAH 1971 14-39 55.1 44.087H 114.586M 3.80HD 33 ' NO )IYPOCE)f)ER SOLUTIOH HELD AT 33 IN (HNd1AL DEPTH) 8 006 P AND/OR P'RRXVALS USED IH HYPOCE)ffER SOLUTIOH t)Orhh FEELS THIS IS h LEFiS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE = NOS 1'i57 25 Jhtl 1971 21 37 52.'9 48.380N 123s248W 3.46 UM STATIOHS USED.. 4 ~ RHBr' 07> HAG STD ERR>> ~ 20 12.)8 26 JAN 1971 10 17 05,0 46.921H 119 554M

~ 3.~~ 1 125'9 7 FEB 1971 23 58"-58.4 47.403N 122.901M 3.01 UW STATIOHS USED= 5 RHS ' 10, HAG STD ERR .51 0

1260 23 FE)3 1971 18 45 00.0 47.690N 114.155M III UE FOLSO)l, MONT.

1261 25 FED 1971 15 50 56 3

~

=

43r224H 126.611M 5.00MB 33 8 NO HYPOCENTER SOLIJTIOH )IELD AT 33 KH (NORMAL DEPTH>

01> P AND/OR O'RRIVALS (ISED Itl HYPOCENTER SOLUTION HOAA FEELS THIS IS A LESS RELIABL.E SOLUTIOH ORIGINAL DATA SOURCF HOS WOODMARD-CLYDE CONSULTANTS 23 APR 81

<i o

I 6 o

! MOODMARD-CLYDE CONSULTANTS 23 APR 8~

PAGE 74 TINE(GHT)

CAT. DA'fE LAT LONG SL IHTEH HAG SH H DIS 0 S LOCATI OH AHD COH<)EHTS HO. DhY~-YEAR HR-HI)i-SEC (HH) (Ktl) (KH) 1262 10 HAR 1971 15=38 28<7 49.320M 127<391M 5 00HD o 33 NO HYPOCENTER SOLUTIOH HELD AT 33 KH (HOR)IAL DEPTH) 040 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORXGINAL DATA SOURCE <-. NOS 1263 12 HAR 1971 05:40 00.0 47.690H 114.155M UE POLSONg HONT.

1264 3 PER 1971 02"34-31.8 47 '13H I>>. 923M 3,20 18 UM STATIONS USED 5g Rtls .06<< HA'8 STD EP<R" .3E 1265 7 i'971 19 05 00 0~ 47<690N 114.155M III UE POLSOHp Hot)T.

1266 8 l'PR 1971 08 15 00.0 47.690N 114<155M IXX UE POLSON ~ Hotff.

1267 12 N% 1971 12 43 24.4 47.830H 11R.319LI IV 4.40HD 21 Ho REPORTED FEI T INFOR)IATIOH 009 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGIN/J DATA SOURCE ~

LOCAL HAGHITUDE = 3.70 NOS SCALE ~ AUTIKIRITY~ H!Os MIHDOM DI:ola AND Dxl )Ies FELL xN AN AmA ABOUT 13K)I FROH POLSOHp HOHT. OH THE MEST SIDE OF INDIAN BAY.

12CG 12 N% 1971 16" 05:00.0 47.800H 114.300M III UE POLSOHp Hotrf. LIGHT SHOCK 1269 12 APR 1971 19 "05-00.0 47.800N 114 <300M IXI UE POLSOH< HO%'.

1270 13 APR 1971 22 15 00.0 47.690N 114 155M

~ IXX UE POL<SOHg Ho)fr.

1271 14 f6% 1971 10=00 00.0 47,690H 114.155M III UE POLSOHt HOHT.

1272 16 APR 1971 19 29-44.0 47.638H 114.466M 4,50HB 5 4 Ho REPORTED FEI T It)FORHATIOH HYPOCE)ll'ER SOLUTION DEPTH RESTRAINED BY GEOPHYSICIST 006 P AHD/OR P'RRXVAI.S USED IH HYPOCElflER SOLUTION HOAA FEELS THIS XS A IZSS RELIABIS SOLUTIOH oRxGIHAL DArA SOURCE .. Hos LOCAL HAG>>XTUDE - 3.20 SCAIX . HL AUTIIORITY NOS Q 1273 17 APR 1971 14 35 00.0 47.690tl 114.155'M III UE POLSOH Hotrf. LIG)IT TREIIOR AT BXG ARH, tlfIHT.

9 1274 18 )PR 1971 14 52 04.5 47.777H 114.354M 4.40HB 5, It HO REPOWen FELT XL ORHATXO)I HYPOCE)ll'ER SOLUTXOH DEPTH RES)'RAINED BY GEOPHYSICIST 010 P AND/OR P'Rf(IVALS USED IH )IYPOCEHTER SOLUTIOH HOAA FEELS THIS IS A LESS ))ELIABLE SOLUTIOH ORIGXHAL DATA SOURCE <-. )los LOCAL HAGHxlUDE = 3.7O SCALE -.HL AUTHORITY= NOS 1275 2O APR 1971 05-.45:Oo.O 47.7O0N 114.COOM IIX UE FELT AT DIG ARt) AHD POLSOHg HOHT.

1276 20 APR 1971 06 04 12.0 . 47.71RN 114.638M XII 4.40HB 5 4 HO HYPOCENTER SOLUTIOH DEPl)l RES)RAI))ED BY GEOPHYSICIST 006 P hHD/OR P'RRIVAI S USED IN HYPOCENTER SOLUTIOH NOAA FEEI S THIS IS h LESS r<<LXABLE SOLUTIOH ORIGINAL DATA SOU)WE = HOS LOCAL HAI)HITUDE 3.30 SCN.E =Hl AU'I'HORITY=- NOS FELT Al'IG hRH AND POLSOH HOHT.

Q MOODMARD-CLYDE CONS<ULTAHTS 23 APR 81

~ o ~ ~

0 MOODMARD-CLYDE CONSIJLTANTS 23 APR 8~1 PACtE 75 CAT. DATE TINE(GHT) LAT LOHG SL INTEN HAG SH H DIS 0 8 LOCATION AND COHHEHTS HO. DAY-HO-YEAR HR-HII'I-SEC (HH) (KH) (KH)

DEPTH OF 5 KH 12/7 20 APR 1'971 20 00 3b.3 47.715H 114 a392M 0 NO HYPOCENTER SOLUTIOH DEPTII RESTRAItKD BY GEOPHYSICXST 005 P htID/OR P'RRIVALS USED IN HYPQCEtlTER SOLUTIQN HOAA FEELS TIIIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SnleCE NOS LOCAL )IAGIIITUDE ~ 3.20 SChl E ttHL AIJTHORITY= NOS 1278 20 APR 1971 20"10 ooto 47.700N 114.400M III UE POLSQHt IIOtff~ FELT AT DIG ARHt LOUD TREHOR 1279 21 APR 1971 13 20 31 so 47 92bH 114 197M

~ ~ 4 '0HD 5 NO IIYPOCENTER SOLIJTIOH DEPTII RF" TRAI)KD BY GEOPIIYSICIST q) 007 P AND/OR P'RRIVALS USED IH HYPQCE)ITER SQLUTIOH NQAA FEELS THIS IS A LESS RELIABLE SOLIJTION ORXGII'IAL DATA SOURCE ~ NOS LOCAL HAAIITUDE ~ 3. bo SCN E =HL AUTIIORITY= NOS 1280 21 APR 1971 13-43 03.3 47.719N 114 '04M 4.50HD 2 f. NO 010 P AND/OR P'RRIVALS USED IN IIYPQCENTER ABLUTION HOAA FEELS THIS IS A LESS RELIABLE SOLUTXQN 6 ORIGINAL DATA SOURCE . HQS LOCAL tIVRIITUDE - 3. 40 SCALE:=HL AUTHORITY= NOS 1281 21 fPR 1971 14 08 40t9 47t742N 114 '57M 3.00N' 0 NO HYPOCEtfIFR SOLUTION DEPlH RESTRAIHED BY GEOPHYSICIST oob P hND/DR P'RRIVALS USED IN HYPOCENTER SOLUTION tlOAA FEELS THIS IS h LESS RELIABLE SOLUTION ORIGINAL DATA SOURCE ~ NOS LOCAL HAGNITUDE - 3.00 SCJ' HL AIJTHORITY= NQS 0

1282 22 hPR 1971 09 45 00.0 47.800l'I 114.300M III UE PQL.QN, N))fr.

9 1283 22 N% 1971 10:05 00.0 47tGOON 114.300M III UE PQLSONy IIOtff.

1284 22 I'SR 1971 12 08 00.0 47.800N 114.300M III UE FELT AT KERR DAH tloiff.

1285 22 APR 1971 13 12:13.b 47.843N 114.2'90M 4,30HD 5 8 NO tIYPOCE)ITER SOLIJTIOH DEP'lll RESTRAItKD BY GEOPIIYSICIST 007 P AHD/OR P'RRIVALS l)SED IH HYPOCEtffER SOL(ITION NOAA FEELS TIIXS IS A LESS RELIABLE SOLUTION ORIOXNAL DATA SOURCE = NOS LOCAL HAGHITUDE ~ 3.10 SChl& *tHL AUIHORX'IY=. NOS 128b 23 APR 1971 18 40 57.1 47.b48N 114.252M 3,10N' 5 f HO HYPOCEHTER SOLIffIQtl DEPTII RESfRAItKD BY GEOPHYSICIST 005 P hHD/QR P'RRIVALS USED IN HYPOCENTER SQLUTIOH Noah FEELS TIIIS IS h LESB RELIABLE SOI IJTIOH ORIGI)IAL DATA SOURCE = NOS LOCAL HAGHITUDE . 3. 10 SCALE =HI AUTHORITY..- NQ.

1287 24 APR 1971- Oh=03-0b.o 53./20N 119.150M 3. 10HN 18 Ch IIYPOCEHTER DEPT)I ASSICtHED STANI)ARD ERRORS: T=1, X=O.Ob, Y.-O.O3, Z= O ORIGINAL DA'fh SOIJRCE ~ EPD 8 STATIOH RECORDINGS USED IH SOLUTIOH HAGNITTJDE ~ 3.10 HH 1288 25 APR 1971 01=30=00 ~ Q 47.800H 114.300M IV UE DIXON, KEflR DAli, Mhl)ONEY~ RQLLXNS AND POLSON IIONT ~

MOODMARD-CLYDE COHSUI.TANIS 23 APR 81 VCt g%E ~

t PC.rJ'/, ~ ~

WOODMARIJ-CLYDE CONSULTANTS 23 APR ~~' ~

PAGE 76 CAT. DATE TltJE(GHT) LAT LOHG SL IHTEN HAG SH H DIS Q 8 L 0 C A T I 0 H A H D C 0 tt tt E tt T S HO. DAY-l(O-YEAR HR-ttIH~~EC (HH) (KH)(KH) ~

1'-?89 26 APR 1971 09=02 26.1 47.800H 114o300M 4s50tJB 5 HO REPORTED DAMAGE

<< HYPOCEtrfER SOUJTIOH DEPTH RESTRAIHED BY GEOPHYSICXST 016 P AHD/OR P'RRIVALS USED IH tlYPOCEttTER SOL(JTIQH ORIGINAL l)ATA SOURCE ~ t)OS PQCAL tJAGttlTUDE = 4.20 SCHIZ tJL AJJTHQRITY t<OS 0 1290 27 APR 1971 10 20 00.0 47ob90H 114 '55M III UE POJ SOHg t(OHT.

1291 30 APR 1'971 04 37 39.1 47.854H 114 240M

~ 3.90HB 5 0 HQ RF3%RTED FELT IHFORHATIOH 008 P AHD/Qf? P'RRIVALS USED IH HYPQCEJ'(TER SQLUTIOH e~ HOAA FEELS THIS IS A LESS RELIABLE SQLUTIOH ORIGINAL DATA SOURCE ~ HOS LOCAL tJAGttITUDE ~ 3.10 SCALE <tJL AUTHORITY= HOS 1292 30 APR 1971 07 15 00.0 47.690H 114.155M UE POLSOH) Hatff, 1293 30 APR 1971 22 40 aaea 47eb90H 114.155M UE POLSOHt l<OHT ~

1294 30 APR 1'971 23 04 aaea 47.690H 114.155M UE POLSOHg NOH're 8

1295 1 HAY 1971 09-05-00,0 47.690H 114.155M . IIX. UE POLSOHr tJONT.,

1296 1 HAY 1971 16 05 00.0 47.690H 114,155M III UE POLSQH, ttntff. 'E 1297 2 HAY 1971 16 "55 00.0 47.690H 114 1MM

~ POLSOHg ttat(f.

Q 1298 3 HAY 1971 12 0 00.0 47.690H 114.155M IXI UE POLSOHg HONT.

1'?99 3 HAY 1971 13-20 00.0 47.690H 114.155M IXI UE POLSOH p HQNT ~

1300 5 tJAY 1971 05-27-aaaa 47.690H 114.1~ UE POLSOHg HOHT.

G 1301 7 HAY 1971 08=a5:aa.o 47.69ott 114.155M IXI UE SLIGtff SHOCK POLSON AHD BIG WH ~ t'lOHT ~

1302 7 HAY 1971 12 40 00.0 47.690H 114.155M UE SLIGttT SHOCI( AT PQLSOH AHD BIG ARtt HO)fr.

1303 7 HAY 1971 lb 1'2-.00.0 47.797H 114.293M IV UE BIG ARtt ~ MORT.

1304 8 HAY 1971 10-45-OQ 0 ~ 47 '90H 114.155M UE POLSOH ~ tJOtff.

1305 8 HAY 1971 10 47:00~0 47.690H 114.155M UF POLSOH> HOlff.

1306 8 HAY 1971 10-50 00.0 47.690H 114.155M XXI (JE POLSOttp ttatff.

1307 8 HAY 1'971- 10-55-00.0 47.690H 114 '55M UE poLSON, t<otfr.

'3as 9 tJAY 1971 06-.40:00.0 47.690H 114. 15m IXI UE PQLsott, ttatfr.

1309 9 HAY 19'71 06 58 00.0 47.690l't 114olMM UE POLSON ~ tJOHT.

1310 10 HAY 1971 17-17-00.0 47.690H 114. 155M UE POLSOHg t(Otff Q

'MOODMARD-CLYDE CONSULTANTS 23 APR 81

<<+a l V)l'

Q MOODWARD-CLYDE CO))@ALTA)ff8 23 APR 8~

PAGE 77 CAT. DATE TIHE(G)ff) I.AT LONG SL INTEH HAG SH H DIS 0 S LOCATI OH AHD COMMENTS tlO. DAY-MO-YEAR HR-HIH-SEC (MH) (KH) (KM) 1311 11 HAY 1971 00"58 00.0 47.690k 114.155M III UE POLSONp NOIR.

1312 13 HAY 1971 04:00"00.0 47.797k 114.293M UE BIG ARH AHD POLSON ~ HO)ff.

1313 13 HAY 1971 04 17"00.0 47.797k 114.293M III UE BIG ARM h)ID POLSOHr HO)ff.

1314 13 HAY 1971 04 45 00.0 47.797k 114.293M III UE BIG AR)1 AHD POLSOHp HOHT.

1315 14 HAY 1971 21.05:00 0 47.797k 114.293M

~

'XI UE DIG ARH AHD POLSOH HOHT.

1316 14 HAY 1971 21 45 00 0

~ 47.797H 114.293M IXI . UE BIG hRH AHD POLSONg HO)ff.

1317 15 HAY 1'971 04 06 00.0 47.797k 114.293M III UE DIG ARM h)ID POI ~OH ~ MO)ff.

1318 17 HAY 1971 09 li 43.7 42,532M 1&i.360M 4.90HB 33 HO HYPOCEHTER SOLUTIOH )IELD AT 011 P AHD/OR 33 KH (HORHAL DEPTH)

P'RRIVALS USED IN HYPOCEHTER SOLUTION HOAA FEELS 'IBIS IS h LEGS RELXADI E SOLUTIOH ORIGINAL DATA SOURCE ~ HOS 1319 17 HAY 1971 22 45 00.0 47,797H 114.293M III UF DIG ARMv MONT ~

1320 19 HAY 1'971 04-45-00.0 47i797H 114.293M III UE BIG ARHg MO)ffo

~ 1321 20 HAY 1971 07 52 43.8 42i187H 126.887M 4.70MB 33 HO )IYPOCEH'fER SOLUTIOH HELD A'f 33 KN ()IOIiHAL DEPTH) 013 I A)ID/OR P ARRIVALS USED IH HYPOCENTER SOLUTION HOAh FFELS THIS IS A LESS RELIABLE SOI UTION ORIGINAL DATA SOURCE ~ t)OS Hh(HITUDE 4.5 USI)IG HOAA AVERAGE HS (IA PEI FORMULA) 1322 20 HAY 1971 08 01-08.6 42.307k 126.339M 5.00MB 33 HO HYPOLEHTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTII) 022 P AHD/Oik P'RRIVAI S USED IH HYPOCEHTER SOLUTIOH HOAn FEELS THIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE ~ HOS MAGNITUDE . 5.0 USING NOAA AVERAGE HS (IASPEI FORMULA) 9 1323 22 HAY 1971 04 10 00.0 47./97k 114.293M IXI UE BXG hfiH~ HO)ff.

' 1324 22 HAY 1971 15?57 10.8 47.788k 118.964M 3.32)IC 15 1325 24 HAY 1'971 14 30 00.0 47.797k 114.293M IXI UE BIG l'BII AND POLN3Hp HONT ~

1326 25 HAY 1971 02 12-00.0 47.690k 114.155M UE POLSOHr MOtff 1327 25 HAY 1971 06 08=00.0 47.690H 114.155M III UE POLSON, HOVr, 1328 27 HAY 1971 14 50 00.0 47.690k 114.155M . III UE POLSOHg t1OHT, 1329 27 HAY 1'971 19 36"-00.0 47.690k 114.155M XII UE POLSOHg MOtff.

1330 28 HAY 1971 10-"42-07.0 46.557H 1Z?.432M 3. 44 21 UW STA'fIOHS USED ~

6 RHS .11 HAS STD ERR - .46 WOODWARD-CLYDE CONSULTANTS 23 APR 81 t

Q MOODMAPiD-CLYDE CONSULTANTS PAGE 78 CAT. DATE TINE(ntrf) LAT LOHG SL INTER HAG St) H DIS 0 S LOCA'CI OR AHD COHHEHTS Hn. DAY-Hn-YEAR Hl(WIN-SEC (HH) (KH> (KH>

h 1331 30 HAY 1971 08 58-56.6 47.707H 114.135M 4.20l'IB 5 RO )IYPOCEHTER SOLUTIOH DEPCI-I RESTRAINED BY GEOPHYSICIST 008 P AI'!D/OR P'RRIVALS (IBED Itl HYI OCE))TER SOLUTIOH ORIGIIIAL DA'CA SOURCE I'os LnCAL HAGHZTUDE = 2.90 SCALE .-HL AUTHORITY tins 1332 1 JUH 1971 19.02.00.0 47.690H 114.1MM III UE POLSOHg HO)If.

1333 - 2 JUR 1971 05 55 00.0 47.690R 114.155M III UE POLSORy HOHT.

1334 2 JUR 1971 23 12 00.0 47..f90R 114.155M III UE r OLSO)I ~ t)ONT ~

1335 3 JUH 1971 03 05=00.0, 47,690R 114.155M - III UE poLGGHg HO)fr.

'9 1336 3 Jl>R 1971 08 15 00.0 47.690R 114.155M III uE roL nN, HO)fr.

1337 3 JUIC 1971 15.45."00.0 47.690H 114i155W III UE POLV)Hy HORT.

1338 3 JUR 1971 >>=30 00.0 47 '90H 114.155M III uE poL GH Hntrr 0 1339 4 JUR 1971 10-00-00.0 47.f90H 114.155M III UE POLsnttg HOIG'.

1340 8 JUH 1971 10=25=00.0 47.690R 114.155M III UE POLSOHy )CORTe 1341 10 JUH 1971 00 05-00.0 47.690H 114.155M III UE pnLSO)I, HORT, 1342 10 JUR 1971 05 45 00.0 47.690R 114.155M III UE Pnl SOHO HnÃf.

1343 11 JUH 1971 23 35 00.0 47.700R 114.300M IV UE KERR DAH AHD POLSONy Hntff ~

'I 1344 12 JUR 1971 00 ~ '2 17,3 47.717R 114.265M 4.40HB 5 8 Rn REPORTED FELT IHFORHhTIOH HYpocE)CCER snLUTIGN DEpTH REsTRAIHED BY GEopHYsIcIsT 00G P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH HOAA FEELS 11-IIS IS A LESS RELIABLE SOL(ITIj)H ORIGIHCJ DA'I'A SOURCE ~ HOS 1345 13 JUR 1971 18-51-21.5 47.748R 114.276M 4.40HB 5 Hn REPORTED FELT It)JFORt)AT ION HYPOL~ICER soLul rot) DEPT)l RF TRArt)ED BY GEnl HYsICIsT 008 P ARD/OR P'fNIVALS USED Itl )IYPOCEHl'ER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOL(CCION ORIGIHCJ DATA SOURCE Nos 1346 14 JUH 1971 07 25 00.0 47.6'90H 114 155M

~ III UE POLSOH t tlntrf.

1347 16 JuR 1971 08.-00-.00.0 47.690H 11 I. 155M III UE POLSOH ~ Hnlff.

1348 19 JUR 19'71 05 18 00 0 47 690R 114 ~ 155M III uE pnLsoH, Ho)fr.

1349 19'UH 1971 09>>48:00.0 47.690R 114.155M III UE POLSONg HOHT ~

1350 20 JUH 1971 '1=25=00.0 47.690H 114.155M III UE POLSONg HOH'C.

MOODWARD-CLYDE CONSULTANTS . 23 APR 81

1 MoowhRD-CLYDE cowcULTAtfrs 23 APR ~%F 0

PAGE 79 CAT ~ DATE TIHE(GHT) LAT LONG SL INTEH HAG SH H DIS 0 S L 0 C A T I 0 H h H D C 0 H H E H T S Ho. DAY-Ho-YEAR HR-HIW-SEC (HH) (KH) (KH) 1351 22 JUN 1971 02 10 00.0 47.690H 114.155M UE POLsowp HONTE 1352 22 JlDt 1971 10 02:00.0 47.690H 114.155M III UE POLSOwr Hotff.

IX'3 JUH 1971 10 Ri:00.0 47.690H 114.155M UE POLsotl ~ HOWT o 1354 23 JUH 1971 19 15 14,2 49.852H 114.769M 4,80t19 E tin How-'rECTOHIC Assocxh'rED pt(EHOHEtth=

ACCIDEHTAL CotrlROUXD, OR SUSPECTED EXPLOSIOH HYPOCEttTER SOLUTIOH DEPTtl REOTRAIHED BY GEOPHYSICIST 007 P AWD/OR P'RRIVALS USED IW HYPOCEttlZR SOLUTIOH PARAHETERS OF OTttER EXPLOSIOHS ~ Ho'f COHPUTED SOLUTIotl ORIGIttAL DATA SOURCE = m 0 1355 24 JUH 1971 02:26.52.8 47,580H 122. 193M 3.26 23 UM STATIOHS'USED . 6 Rtls ~ 09, HAG STD ERR-" .28 1356 24 JUH 1971 06 55 00.0 47.690H 114.155M UE POLSOwg HOKf.

1M7 24 JUH 1971 15 10 00.0 47,690H 114.155M UE POLSOI'l ~ Hot rf 1%8 25 Juw 1971 13 45 40so 47.573H 122o204W 3.01 22 UM STATIONS USED. 6 RHS.. ~ 07, HAG STD ERR:" .54 1359 26 JUH 1971 04 18 00.0 47.690W 114.155M . III UE POLSOH, Ht)HT.

1360 26 JUH 1971 05 54 00.0 47.690H 114.155M UE POLSotl ~ HOWT, 1361 26 JUH 1971 22 02 14 ' 47.578H 1>>.194M 3.29 ltu STATIONS USED= 6r RHS~ 04 ~ HAG STD ERR" 42 1362 29 JUW 1'971 0'9-55 00 ' 47.690H 114 '55M UE POLSOW, HOtff, 1363 5 JUL 1971 02:34:00.0 47.6'vow 114.155M III uE poLsow, Hotfr.

1344 11 JUL 1971 18:34 00 ' 47.690tt 114.155M xxx uE poLsott, Hotrf.

1365 12 JUL 1971 18N28 00.0 47.690H 114.1:i5W III UE POLsowr I4()ttTo 1366 12 JUL 1971 20-.1O.-OO.O 47.6VOW 114 '55M UE poLSOH, >>nwr.

1367 13 JUL 1971 18~51 32.1 47.760H 114.240M 3.40W' Ho REPOR'fED DAtlhGE HYPOCEtfl'ER SOLUTIOW DEPTH RESTRAIHED BY GEOPHYSICIST oos P AHD/OR r ARRIVALS usED xw HYPOCEwtER socuTxow ORIG1HAL DATA SOURCE .= ERL LOCAL HAGHI1't)DE 3. 40 SCALE HL Alf(HORITY. ERL 1368 14 JUL 1971 14 50 00.0 47.690H 114.155M III UE POLSOWy HOHT ~

1369 23 JUL 1971 15 01 50.7 47.814W 114 '22M 4.00H' Ho REPOSED DAHAGE trYPOCEttfER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST 011 P Atlo/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION ORIGIHAL DATA SOURCE ~ ERL LocAl t(AGNITunE 4. oo Sera.E HL AUT)toRITY~ EPJ MOODMARD-CI YDE COHSULTAHTS 23 APR 81

0 WOODWARD-CLYDL COHSULTAHTS 23 APR 8~

PAGE 80 n

CAT. DATE TINE(GHT) LAT LONG SL IHTEN HAG SH H DIS 0 S LOCATION AHD COHHENTS HO. DAY-HO-YEAR HR-HIH-KC (HH> (KH>(KH) 1370 23 JUL 1971 15.44-27,4 47.026H 114.201M 3.50H' HO REPORTED FELT I)IFOAHATIOH HYPOCE)ffER SOLUTIOH DEPTH RESTRAIHED BY GEOPHYSICIST 000 P AHD/OR P'RlwIWLS USED IH HYPOCENTER SOLUTIOH ORI(3IHAL DATA SOUACC ~ERL LOCAL HA()NXTUDE ~ 3.50 S( ALE =HL AUTHORITY= ERI 1371 24 JUL 1971 11r3(3126.0 47.050H 114.263M 4/50(& 5 T HO REPORTED FELT IHFORHATIOH HYPO~(TER SOLUTIOH OG TH RESTRAIHED BY GEOPHYSICIST 010 P AND/OR P'f5;IVALS USED IH IIYF'OCEHTER SOL(ffIOH HOAA Ff33 S THIS IS A LESS RELIABLE SOLUTION ORIGIHAI DATA SOURCE ~ EAL.

LOCAL HA(IHITUDE = 3.20 SCALE -"HL AUTIIORITY. ERL O 1372 24 JUL 1971 11 43-02.6 47.023H 114.341M 4.30H(3 5 4 HO AEPORTED FELT IHFOAHATIOH HYPOCENTER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICXST 000 P A."ID/OR P'RRJWLS UMI) IH HYPOCENTER SOLUTI(3H HOAA RXLS THIS IS A LESS RELIABLE SOLUTIOH ORXGIHAL DA'I'A SOURCE ERL LOCAL HA(JHITlll)E ~ 2 ~00 SCALE HL hUT((ORITY< ERL 1373 25 JUL 1171 13 20 00.0 47/690H 114.155M III UE POLSOH, H(mr.

1374 26 JUL 1971 06:05:00.0 47 690tl 114/155M

~ III UE POLSON, HO)rr.

1'75 28 JUL 1971 06 04 19.4 47 004H 114.312M V 4.903(B 5 HO REPORTED FELT IHFORHATIOH 6

~

/ t(YPOCEHTER SOLUTXON DEPTH RESTRAINED BY GFOPHYSICIST 016 P AM)/OR P'fd'XVALS USED IN IIYPOCENfER SOLUTIOH ORIGINAL DATA SOURCE ~ ERL LOCAL HlhHXTlJDE .= 4.40 SCALE HL AUTHORITY= ERL 1376 28 JUL 1971 12"44 00.0 47.690l'I 114/155M III UE POI SONp HOtff.

Q 1377 2S JUL 1971 14-5/5'00.0 47.690H 114 '55M III UE POLSOH ~ HOtff.

O 1 78 28 JUL 1971 1S 6-00.0 47.690H 11h/155M IIX UE POLSOHt HOKf.

1379 20 JUL 1'971 10 47 00.0 47.690H 114.155M IIX UE POLSONg HOHT.

1300 2S JUL 1971 19"-03 00 ' 47.6'90H 114.155M III UE POLSONp HONTE 1301 1 AUG 1971 10:27:00.0 47.690H 114.155M III UF POLSOH, HOtrr.

1302 3 NJG 1971 23"'2."00.0 h7.690H 114 '55M III UE POLSOHg HOÃf.

1383 0 NJG 1'971 19 34 00.0 47.690H 114.1.J5ll III UE POLQ)HE HOI(T.

O 1304 9 AUG 1971 15-53-00.0 47.690H 114.155M IXI UE POLSOHt HOKf.

1385 10 AIJG 1971 20"-26:47.0 47.mm 122.210M 3,14 22 UM STA'fIONS USED- 7 RHS= .13 HAG STD ERR ~

.20 1306 14 AUG 1971 23-24 00.0 47.690H 114.155M III UE POLSOH ~ HOHT, WOODWIND-CLYDE COHSULTAHTS 23 APR 81

~/'eei ~

MOODMCZJI-CLYDE COt'SULTAtff8 23 APR 8 PAGE 81 CA'f, DATE TINE(GHT) LAT LONG Sl INTEH I"JAG SH H DIS 0 8 LOCATION AHD COHHENTS NO. DAY-YiO-YEAR HR-Hit)-~MC (HH) (KH) (KH) 1387 18 AUG 1971 05 18.08.0 53.890N 117.160M 3 00HN o 18 CA HYPOCENTER DEPTH ASSIGNE1)

STANDARD ERRORS T->1 ~ X~0.10> Y.-0.10> Z~ 0 ORIGIN/J DATA SOURCE ~ EPB 2 STATION RECORDINGS USED IN SOLUTION HAGNITUDE ~ 3 ~ 00 HN 1388 18 AUG 1971 23 44 25.0 47ohlON 120.083M 3 18HC

~ 2 1389 23 AUG 1971 22 37 00.0 47.690N 114.155M UE POLQN HONT.

1390 24 AUG 1971 12 25 00.0 47.690H 114.155M UE POLSONg HOtff.

1391 26 AUG 1971 09.-14:00,0 47.690N 114.15m III UE POLSON, HO!(r.

1392 27 AUG 1971 07 20 00.0 47.690N 114.155M UE POLSON ~ HUNT, 1393 27 AUG 19'71 16=50 00.0 47.690N 114.155M UE POLSON ~ HONTE 1394 28 AUG 1971 16 42 00.0 47.690N 114.155M UE POI SONg tJOt(T.

1395 2 KP 1971 00 06 00.0 47.690N 114 '55W UE POLSON, HONT.

1396 2 SEP 1971 06 34 00.0 47.690N 114 '55M III UE POLSON, HONT.

1397 2 SEP 1971 08 ~.00 ~ 0 47,690l't 114.155M UE POLSONg HONT.

1398 5 SEP 1971 18-42 00 0~ 47.690N 114.155M UE POLSOllp HOlff.

1399 9 SEP 1971 00 20 17.2 47.779tt 114 248M

~ 3.90HB 5 NO REPORTED FELT It!FORI(ATION HYPOCEHTER SOLUTIOtt DEPTH RESTRAINED BY GEOPHYSICIST 009 P AND/OR P'lKIVALS USED IN HYPOCENTER SOLUTION ORIGINAL DATA SOURCE ~ El'M 1400 9 CMP 1971 20.32 58.6 47.569H 122.211M 3,51 23 STATIONS USED- 7g RHS llr HAG STD ERR . ~ 11 1401 11 SEP 1971 03".10 00.0 47.690N 114.155M III UE POL~~ly HOtff.

1402 13 SEP 1971 22 41 00.0 47.690N 114.155M III UE POLSONe MOt(To 1403 18 SEP 1971 06-.38:00.0 47.690N 114. 155M III UE POLSOI't g HOtff 1404 19 SEP 1971 12 57 00.0 47.690!( 114.155M III UE POLSOH ~ t ORf, 1405 22 SEP 1971 il"37 10.0 48.800tt 121.800M 3.00HL 18 CA tlYPOCEttTER DEPTH ASSIGNED ORIGINAL DATA SOURCE = EPB 2 STATION RECORDINGS USED IN ~MI UTION HAGHITUDE = 3 00 ~ HL 1406 1 OCT 1971 13r15:00o0 47o690N 114s155M III' UE POLSON ~ HONT.

1407 OCT.1'971 18t45 19.5 48o261N l~o901M 3s18 UM STATIONS USED- 7, RHS .14, HAG STD ERR-" .18 MOODMARD-CLYDE CONSULTAt'TS 23 APR 81 Q

e ~

e 6 23 APR 8 MOODMARD-CLYDE CONQILTAHTS PAGE 02 CAT ~ DATE TINE(GHT) LAT LONG SL IN'rEN HAG SH H DIS 0 S LOCATION AND COHHEHTS NO ~ DAY-HO-YEAR Hk-HIH-SEC (IN) (KH) (KH) 1400 20 OCT 1971 00-.09:~ 5 46,547N 121.814M

~ 3e3e> 7 IN STATIONS USEDee by R)ISe"..09 HAG STD ERfe - .61 1409 22 OCT 1971 06.39 00.0 47.690H 114e155M UE POLSONy HOI(f.

1410 25 OCT 1971 05-06-00.0 47.690H 11R.155M UE,POLSOHy HS'ITe 1411 25 OCT 1971 10:5:?:49.0 46.70ON 119.5RSM . III 3.0ZRC IN FELT 1412 25 OCT 1971 19 18-00e0 47.690H 114.155M UE POLSONy HO?ffe 1413 26 OCT 1971 07".14:00.0 47.690N 114.155M UE POI SON, HO)fr.

'E 1414 27 OCT 1971 14-06"00.0 47.690N 114 '~M POLSONy HONT.

1415 6 NOV 1971 19-10 00.0 47.690N 114.155M UE POLSON, HO)fr.

1416 0 NOV 1971 >> 42 00.0 47.690N 114.155M UE POLSON, HON'r, 1417 11 HOV 1971 21-01-b8.4 40 236H 121 e75RM

~ 3. 15 10 UM STATIONS USED~ 5, RHS~ ~ 00, HAG STD ERR~- .35 1410 16 ttOV 1971 10 40 00.0 47.690N 114 155M

~ UE POLSOHy )IO)ff e 1419 17 HOV 1971 16 54:00.0 h7.690N 114 '55M , III UE POLSONy MONT ~

1420 23 tlOV 1971 02 12 14.5 40.269N 121e102M 4.14 17 UM STATII)NS USED' RHS .00, Hhf> STD ERRe .03 lh21 26 NO'V 1971 06 10 00.0 47,690N 114.155M UE POLSONy HONT.

e 0 14>> 20 NOV 1971 10 52 41.1 47.8XW) 123,9~~ 3.39 43 IN STA'f IONG USED- 7y RHS~ 27 ~ HAG STD ERR" ~ 12 14'>3 30 NOV 1971 01 47"24.0 40 500N 115e300M

~ 3,00HL 10 CA ttYPOCE)?TER DEPT)l ASSIGNED Q STANDARD ERRORS T.-2y X=0.06y Ye-.0.09y Z< 0 ORIGINAL DATA SOm?CE ~ EPI)

R STATIOH RECORDINGS (ISED IN SOLUTIOH HAGNITUDE .= 3.00 tiL 1424 6 DEC 1971 07-%5-00.0 47.690N 114.155M III UE POLSONy HONT.

1425 7 DEC 1971 03-"50=00.0 47.690N 114.155M III UE POLSOtdy Htmfe 9 1426 13 DEC 1971 20:59:03,6 47.051N 123.446M 3.56 20 UM STATIONS USED= 6 RHS .14 HAG STD ERR: .10 1427 20 DEC 1971 10 ~~~-00.0 47.690N 114.155M III UE POLSOHy HOtffe 1428 22 DEC 1971 20rhb 53.0 h7.521N 1'>>.067M 3.37 20 IN STATIONS USED~ 6y RHSye .02y HAG STD ERRe .13 1429 23 DEC 1971 10 tS 57 ~ 0 50e500N 12 I e500M 3e30HL 18 CA I-IYPOCENI'ER DEPTH ASSIGNED ORIGINAL DATA SOURCE EPB 6 STATION RECORDINGS USED IN SOLUTION LRGNITUI)E .= 3.30 HL e

WOODMARD-CLYDE Cot<Gut TANTS 23 APR 81 e eeeee y$

eee.e r

I t

I

0 MOODMARD-CLYDE CON!)ULTAHTS 23 APR 81~ j n.=,

PAGE 83 CAT. DATE TINE(GHT) LAT LONG SL INTEN HAG SH )I DIS Q 8 LOCATION AHD COHHEHTS HO. DAYWO-YEAR HR-HIH-SEC (HH) (KH)(KH) 1430 24 DEC 1971 17"30"00.0 47.690H 114.155M III UE POLSONp HO)IT ~

1431 27 DEC 1971 08 09 52.4 47.721H 114,238M 4 40HD

~ 5 f. NO REPORTED FELT XNFOld1ATION HYPOCEHTER SOLUTIOH DEPTH RESTRAIHED BY GEOPHYSICIST 007 P AND/OR P'RRIVALB USED IH )IYPOCEHTER SOLLITXON HOAA FEELS THIS IS A LESS RELIABLE SOLlfTIOH ORXGIHAL DATA SOURCE ~ ERL 1432 28 DEC 1971 07 50:00.3 47,WR 122.214M 4 '8 23 UM STATIOHS USED~ 8t PAS~ ~ 12'AG STD ERR ~

~ 05 1433 30 DEC 1971 14 2.17.7 47.604N 1~2.730M 3.21 16 I)M 8'fA'fIOHS USED' RHS-- .07 HAG STD ERM .15 1434 30 DEC 1971 17-.54=00 0

~ 47.690H 114.155M Iii UE POLSOH, MONT ~

1435 5 JAM 1972 10 32 26 6 47 ~ 769H 1 14 209M

~ 4 40)3B

~ 5 e )IO REPORTED FELT INFORHATXON HYPOCENTER SOLUTIOH DEPTI3 RESTRAINED BY GEOPHYSICIST 00/ P AHD/OR P'RI(IVALS USED IH )IYPOCENTER SOLUTION NOAA FEELS THIS IS A LCSS RELIABLE SOLUTION OR)GINAL.DATA SOUfiiE ~ EPJ 8

1436 13 JAN 1972 22 06 16.6 47.318H I'>+.604M 3.61 UM STATIOHS U.,ED= 6, IJIS- .06 HAG STD ERR - .14

'O 1437 17 JAH 1972 02 07 28.8 47.621N 121.907M 3.04 19 . UM STATIONS USED:. 6, PJIS- .10, HAG STD ERR. ~ 17 1438 23 JC'A 19/2 10 40-40.9 43a532N 127a043M 4.80HB 33 e HO HYPOCE))TER SO) lffION )IELD hT 33 KH (NORHAL DEPTH) 0 035 P Al'ID/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH HOAA FEELS THIS IS h LESS RELIABLE SOLUTION ORIGINAL DATA SOUIICE = EPJ Q HAGHITUIZ - 4 4 USING HOAA AVERAGE HS (IASPEI FORHULA)

~

1439 22 FEB 1972 12 35 04.9 47.326H I>'~.759M 3.36 7 UM STATiONS USED= 8, RHS .09~ HAG STD ERRi- .10 Q

1440 4 IVB 1972 12 26.13.0 47.813H 114.379M 3.70)x" 5 NO FiEPORIED FELT IHFORHATION IIYPOCEH TER SOLUTIOH I)EPTH RESTRAI)IED BY GEOPHYSICIST Q 009 P AHD/OR P'(RIVALS USED IN IIYPOCENTER SOL.UTIOI'I I ORIGIHAL DATA SOURCE = EM I LOCAL HAGHITUDF 3.70 SCALE WL AUl)IORITY= EFJ..

j (()

1441 4 IVli 1972 12 42 04.5 47o818N 114.416M 4 40HD 5 e NO REPORTED FELT I)IFORHATIOH HYPOCENTER SOLU1'IOH DEPTH RFSTRAINED BY GEOPHYSICIST 006 P AM)/OR P'RRXVALS U ED IN HYPOCENTER SOLUTIOH NOAA FEG S THIS IS A I&SS RELIABLE SOLUfIOH ORIGINAL DATA GOUT(CE ~ ERL LOCAL HAGHIT(IDE = 3.20 SChLE HL AUTHORITY= ERL 4 IK) )IYPOCEHTER SOLUTIO)I )TELD AT 33 KH (NORHAL DFPTH) I:

1442 23 HAR 1972 21t25 40.3 42.692N 126.241M 4.90HD 33 O 017 P AHD/OR P'RRlVAI 8 USED Ol HYPOCEHTER SOLUTIOH HO(L) FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE .= ERL I; MOODWARD"CLYDE CONSIILTAHTS 23 APR 81 en[;r: nn

6 MOOD)JARD-CLYDE CONSULTAHTS 23 APR 81 g

~ PAGE 84 CAT. DATE TINE(G)ff) LAT LOHG SL INTEH HAG SH H DIS Q 8 LOCATION AHD COHHENTS NO. DAY-MO-YEAR HR-HIH-SEC (HH) (KH) ()N)

Q 1443 24 HAR 1972 02 50 25.4 42.6W&) 126.271M 4.80HD 33 C HO HYPOCEHTER SOLUTION HELD AT 33 Kti (NOR))AL J)EPlH) 014 P AND/OR P'RRIVALS USED IH HYPOCE)JCER SOLUTION t)OAA FEELS ')HIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE = ERL 1444 28 HAR 1972 10:40.52.0 47.011H 114.307)J 4.40HD 5 4 HO HYPOCENTER SOLIJTION DEPTH RESTRAINED BY GEO) HYSICIST 006 P AND/OR P'RRIVhl S USED IH HYPOCEHTER SOLUTION HOAA FEFLB 'CHIB IS h LESS RELIABI.E SOLUTIUH ORIGIt)AL RATA SOURCE ~ ERL

' 1445 4 hPR 1972 11 01-53.3 47.809H 122.085M 3,02 24 UM STATIONS UM= 7 RHB ~ 15, HAG STD ERR: .16 1446 5 APR 1972 19 14-10.0 49.809H 114 850M

~ hi70HD E NO HOH-TECTOHIC ASSOCIATED P)%NO))Et~rh-ACCII)EHlhL COHTROLLED, OR SUSPECTED EXPLOSION HYPOCEt)TER SOLl)TIOH DEP IIl REBlRAI))ED BY GEOPHYSICIST 006 P ht)D/OR P'RRIVALS USED IH HYPOCENIER SOLl)TION PACW)ETERS OF Ol)KA EXPLOSIOHS, NOT COYiPUTED SOLUTION ORIGINAL DATA SOURCE = ERI O 1447 0 APR 1972 06-24 13.7 42.646H 126.320)J 5.60i)D 11 HO 079 P AND/OR P'RRIVALS USED IN HYPOCE))TER SOI..UT OH ORIGI))AL DATA SOURCE = ERL t)hGHITUI)E(FRACTIOH/J HOfhTION AVE) 5.50, AUTHORITY-PRK 1440 9 hPR 1972 01-10 10.0 42.700H 126.275M 4,70HD 33- IirO HYPOCEHTER SOLUTIOH HELD AT 33 KH (t)OF@%) DEPTH>

017 P AHD/OR P'RRIVALS USED IH HYPOCENTER Fllll IITvii~l ORIGIHA'h'CA SOURCE r- ERL 1449 '9 hPR 1972 21"19 25.2 40 101N 114.143M

~ 4.50t)D 8 HO HYPOCEHTER SOLU'CIO)4 DEPT)l REB'IRAI))ED BY GEOF')IYSICIST

)9 006 P AND/OR P'RRIVA)B USED IH HYPOCEHTER SOLUTION HOAA FEELS THIS IS h LESrS REI IABLE SOLUTIOH ORIGINAL DATA SOURCE ERL 1450 10 t)AY 1972 05 07 39.3 40.419)l 122 ~ 001'M 3i 12 13, UM STATIOHB U. ED 6 RtLB..11 HAG BTD ERR'l 1451 18 YiAY 1972 12 09 03.6 47.690N 114,155M IV UE NEAR POLSO)) ~ HOHT.

0 1452 29 HAY 1972 li .rb 16ib 46:787H 121i906M 3.02 UM TATIONS USED- 6 RHS-, 19 HAG STD ERR .20 1453 9 JUH 1972 21:50-57.7 47.742H 121.978M 3.29 U)J STATIONS USFD:". 5r Pit)B'" .09r HAG STD ERRr i18

' 1454 19 JU))'1972 23 '.r/-57 7

~ 40 121M 121.194M

~ 3.15 10 UM STATIONS USED<<7r RHS= .13r HAG STD ERRrr i17 DEPTH FIXED 9 1455 25 JUH 1972 01 42=21.9 47.'953H 1 r r.127M UM STATIONS USED- 7 RHB..06 HAG STD ERR" .00 1456 20 JUH 1972 10-16 54.6 48.404N 1~.475M 3.16 20 UM STATIONS USED= 7r RHB .23r HAG STD ERR..13 lrbrr 5 JUL 197r 10-16-30.4 49.545N 127.213M 5iOOHD 27 NO REPORTED FELT IHFORHATIOH 067 P AND/OR P ARRIVALS USED IH HYPOCEHCER SOLUTION ORIGINFJ DATA SOURCE i= ERL HAGNITUDE =- 5.7 USING HOAA AVERAGE HS (IASPEI FORHULA)

MOODMARD-CLYDE CONM)LTAI(TS 23 APR 81 6

0 '

WOOINhftD-CLYDE CONMJLTAIITB 23 APfl PAGE 05 CAT. DATE TIVE(Gtff) LAT LONG SL ItffEN HAG SH H DIS 0 0 LOCATION AND COHHENTS HO. DAY-HO-YENI HR-l(IN-SEC (HH) (KH)(KH)

HAGHITUDE(FRhCTlt)NAL tIOTATION,AVE) 5.50, AUTIIORITY-BRK 1450 17 JUL 1972 21 09-36 0 47.541H 122.000M 3.14 IN STATIONS USED 8 RMS~ .06 HAG STD ERR- ~ 00 1459 28 JUL 1972 15.04 01.2 47./58R 1&.456M 3.02 UM STATIOHS USED= 7 RHSr .05, HAG STD ERR,12 1460 13 AUG 1972 12-55-15.0 47 '07R 121 '07M 3.02 UW SThrIONS USED. 0, RHS .10, HAG STD ERrl- .11 1461 26 AUG 1972 10 0'5 01 ' 43.210N 127s394M 4 '0HB 33 0 Rt) HYPOCEHTER SOLUTIOR I(EI.,D AT 33 KH (ttt)IJIAL DEPTII) 014 P hND/OR P'RRIVhLS (ISED IH HYPUCEtffER SOLUTION HOAA FEELS TIIIS IS A LESS RELIABLE SOLUTD3tl ORIGINAL DATA SOURCE ~ CRL HAGIIITUDE =- 4.4 USIHG HOAA AVERAGE HS (IAI PEI FORHULA) 1462 27 SEP 1972 01 08 15.9 45a230N 121.635M 3,09IQ 5 D GS RHS O.~tHSE 17.0g2SE 14.7ptISTtt 33)OAP-320tD 04 1463 4 OCT 1972 12 38-50e5 40.375H 1'~.242M 3.15 19 IN STATIOHS I)BED=. 8 RHS '1'9 HAG STD ERR- .21 1464 lb OCT 1972 22 08=32.1 4t).030N 122.122M 3.04 IN STATIONS USED- 7, RHS'= .31, HAG STD ERR,08 6 1465 22 OCT 1972 09 16:20.3 47.567N I>+.211M 3.77 UM STATIONS USED 8 RHS= .11 ~ HAG STD E~ .14 1466 25 OLf 1972 01".01 41 ' 43.438R 127e732M 5.30HD 33 NO HYPOCENTER SOLUTIOtl IIELD AT 33 KH (tlORHAL DEPTH) 054 P AHD/OR P'RRIVALS tISED IN HYPOCEtITER SOLUTION ORIGINJ1. DA'fh SOURCE ~ ERL HAGHITUDE 5.2 tHOIG HOAA AVERAGE l(S (IASPEI FORHULA) 0 1467 3 I'IV 197- 23-40"-31.2 47.721H 122 906M

~ 3.05 40 IN STA'fIONS USED= 10, RHS .20, HAG STD. ERR - ~ 10 1468 6 NW 1972 10 38 39.3 47.294R 1~.913M 3. 67'3 IJW STATIOHS USED= '9 I'HS . 10 HAG STD ERR .05 1469 6 Ntw 1972 23 47>>18,4 47o092tt 114.250M 3. GOR' ttO HYPI)CEHTER SOLUTION DEPTII RE'"fRAIRED BY GEOPHYSICIST 014 P hND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGINJJ DA'rh SOIJRCE ERL LOCAL HAGHITUDE = 3.80 SCALE rHL AUTHORITY= ERL Q 9 1470 9 Nt)V 1972 04 19" 18,4 40.449N 123.334W 4 '2 52 UM STATIOHS USED= 11, RHS .17 HAt STD ERR-. ~ 14 1471 14 NOV 1972 10 26'24.1 47.744N 122.249M 3. 27 22 IN STATIOH. USED= 11 R%= .12, HAG STD ERR .10 1472 17 ROV 1972 02 15 23.4 45.080R 122.643M 3.0P> UW STAT'IOHB USED-' RHS ..36 HAG STD ERR .66 1473 24 ROV 1972 23-10-32.7 47.212N 114.005M IV tlo PZPORTED FELT INFORttATIOR HYPOCEtffER SOLUTION I-ELD AT 33 KH (tIOfu&Q DEPTH) 016 F A)ID/OR f ARJIIVAI.S IJSED IN IIYPOCEIITER SOLUTION ORIGIHAL DATA SOURCE ~ ERL 1474 3 DEC 1972 10 17 41.8 47.483N 122.760M "

3 '2 18 UM STATIOHS USED 11 RHS ..17 ~ HAG STD.ERR=..21 1475 6 DEC 19'72 10 "32 26.7 47 060N I+M.443M 3.00 46 IN BTAfIONS USED= lip RI4BLo .12> HAG STD ERR: .19 8 ~

14/6 6 DEC 1972 17 35 M.b 47.766H I++.457M 3.25 26 IN STATIOtlS U.XD<< ll RHS'= .17 HSB STD ERR ~ .03 MOOINARD-CI YDE CONQJLTAN'fS 23 APR 01

~ ~

8 0 ~'

MOODMARD-CLYDE COHSULTAtlTS 23 APR 01 << ~ ~

I 8

PACE eb CAT. DATE TIYiE(GMT) LAT LONG SL IHTEH MAG SH H DIS 0 0 LOCATIOH AND COtlHEHTS tIO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH)

Q 14/7 9 DEC 1972 01 ~.34,5 40.590H 1>> 997M

~ 3.29 11 UM STATIOHS U~ 10, RH9=..M MAG STD ERR .12 1478 20 DEC 1972 19 50 41.'9 49.703H 114.017M 5. 10HB HO HOH-TECTOIIIC AS~MCIATED PIIEHOMEHA ACCIDENTALt COtllROIJXDt OR SUSPECl'ED EXPLOSION 011 P AHD/OR P'RRIVALS USED IH IIYPOCEtFCER SOLUTIOH e PARAHETERS OF OTHER FXPL()SIGNS ~ t!OT COYiPUTED SQLUTIOH ORIGlt<<<<AL Dhl'A SOURCE i= EFd 6

1479 16 JAFI 19T3 03 'i7 >9.9 47.902)l 121.'945M 3.30 10 UM STATIOHS USED= 10 RHS ..16, MAG STD ERR- .33 6 1480 20 JAH 1973 11 53 17.5 45.989M 1>><<109M 3.27 7 I UM STAT OHS USED+ 10 t RHS ~ 30 ~ HAG STD ERR ~ 20 1401 22 FED 1973 04 47 17,2 47.267N 1>>,053M 3.76 24 UM STATIONS USED=- lip RtIS<<- .29 ~ HAG STD ERR-.- ~ 06 8

1402 4 ted% 1973 02z47=32.0 52.060N 110.070M 4.60ML 10 CA HYPIKEtITER DEPT)I ASSIGFIED STANDARD ERRORS T-0 X 0.04 Y 0.03 Z 0 ORIGIHhL DhTA S(mF<<<<E <<= EPB 0 STATION RECORDINGS USED IH SOLUTIOH MAGNITUDE ~ 3.90 MH HAGtIITUDE 4.60 03 15:44,0 52.040H 110.000M 3. 40ML 18 )ER DEPTH ASSIGNED O

1403 4 HAR 1973 Ch HYPOCEt STANDARD ERRORS T..l g X-.0,04 ORIGINAL DA'Ch SOURCE ~ EPD

'a0 ~ 04 t Zm 0 5 01ATIOH RECORDINGS USED IN SOLUTION MAGNITUDE ~ 2.00 HH HAGNITUDE = 3.40 ML 1404 4 HAR 1973 05 02 43<<0 52 '30H 118.040M 4 <<30tIL 10 CA HYPOCE))TER DEPTH ASSIGHED STAtIOARD ERR()RS: T=O, X=0.05, Y 0.04, 2 0 ORIGIN('J DATh SOURCE EPB 0 STAl ION RECORDINGS USED IH SOLUTION MAGNITIJDE ~ 3.50 HH HAGHITUDF ~ 4 ~ 30 HL 14M 16 HAR 1973 06 20 56.0 40.910H 114,000M 3.50HI 18 CA I-IYF'OCEHlER DEP1)I ASSIGNED STAtlDARD EIRORS T 2 X=O. 11 Y=O. 1'5 2 0 ORIGIHN DA'I'h SOUI'CE - EPB

'I Sl'ATION RECORDINGS USED IH SOLUTION MAGNITUDE ~ 3.50 til O

1406 17 HAR 1973 23:17=13.7 47.770H 120.000M 3.00 RU 1407 22 HAR 19'1 21.51.0 52.060H 110.010M 4.20ML 10 Ch HYPOCENTER DEPTH A 'IGHED STAtlDARD ERRORS T. 1 X=O 05 Y 0.04

~ Z= 0 ORIGIHAL DATh SOURCE - EPB 5 STATIOH RECORDIHGS USED IH SOI UTIOH HAGHITUDE - 3.90 MN HAGHITUDE = 4<<20 HL MOODMARli-CLYDE CONSULTANTS 23 APR 01 <<

ct MOODMARIJ-CLYI)E COHSULTAH'I'8 APR 8 PAGE 87 e

CAT o DATE Tit(E(GMT) LAT LOHG SL IHTEN HAG SM H DIS O 8 LOCATION AHD COHMEHTS NO. DAY-t(O-YEAR IR-HIH-SEC (HH> (KH>(KH) 1488 30 t(AR 1973 16 li6 30.0 52.030H 118 '70M 3.70>tt 18 CA HYPOCENTER DEPTII ASSIGNED STANDARD ERRORS: T~ip X 0.05'.-0.04'~ 0 ORIGIHAL DAI'A SOURCE ~ EPB 5 STATIOtl RECORDIHGS ltSED IH SOLUTIOH MAGHITUDE ~ 3.20 HH HAGtlITltDE = 3.70 HL 1489 13 APR 1973 07:03" 08.9 47.823N 122.762lt 3.67 52 UW STATIOHS USED 11 RMS= .10 MAG STD ERR-1490 19 NS 1973 19 33>>45.9 46.312)t 12?.225M UM BTArlOHB USED= 9, RMS ..10, HAG STD ERI?-: .13 1491 27 APR 1973 llt00"19.8 43.618N 127o134W 4 90MB

~ 33 4 ltO llYPOCEtffFR SOLUTION IIELD AT 33 KH (HORHAL DEP'fH) 018 P AHD/OR P'RRIVALS USED IN HYPOCEHfER SOLUTIOH HOAA FEfLS TtlIB IS A LESS RELIABI.E S01.UTIOH ORXGIHAL DATA SOURCE ERL 1492 12 HAY 1973 19 31 21.0 49.610H 127.400M 3. 50ML 18 CA HYPOCEI(TER DEPTII AS -IGHED S'f Al'lt)ARD ERRORS TZ> ~ X"-0. 30 Y=0. 13 Z 0 ORIGIttAL DA'I'A SOURCE ~ EPD 5 BTATIO)t RECORDINGS USED IH SOLUTION

)IAGNXTUDE 3.50 M 9 1493 25 MAY 1973 11."36.25.9 43. 45H 126,767M n.20MB NO HYPOCENTER SOLlffIOH HG D AT 33 KM (tml&AI DEPT)l) 013 P AHD/OR P'RRIVALS ltSED IN HYPOCEHfER SOLUTIOH ORIGIHAlDAfASOUR(.F ~ ERI 1494 6 JUH 1973 00 12 07.0 48.659H l>M.094M 3.05 19 UM STAfIOHS USEI)'~ 10~ RMS~ ~ 36'AG STIt ERR~ .35 O lh95 6 JUH 1973 17 22-K?.I 43 417H 126. 106M o 4.50MB 33 0 HO HYPUCEI'll'ER SOLUTIOH HELD AT 33 KH (HORHAL DEP'fH) 006 P AHD/OR P'RRIVALS USED Itl HYPOCEHTER SOLUTIOH HOrJI FEELS 1HXB IS h LE~M RELIABLE SOLUTI(>H ORIGIHAL DATA SOURCE ~ ERL 1496 9 JUH 1973 il 11 39,1 47.5'93H 121 803M

~ 3a30 10 UM STATION USED= ll, RMI .17 MAG STD ERR'" .1O 1497 lh JUH 1973 12-54.Zi.7 47 630l'I 123,227M

~ 3a04 49 UW STA'rXONB USED-" 11, RMB ..16, MAG STD ERr - .18 1498 16 JUH 1973 14-.43.-47.5 44.980H 1~~,774M 5.60MB 33 HO REPORTED FFLT IHFORHATIOH HYPOCENTER SOLUTIOH HG D AT 33 KH (HORHAL DEPTH) 115 P AHD/OR P'RRIVALS USFM IH HYF'OCEH1ER SOLUTIDH ORIGII'lAL l)ATA SOURCE ~ ERI.

MAGHI11JDE 5,1 USIHG NOAA AVERAGE HS (IASPEI FORMULA>

lh99 18 JUH 19'8-20 37.6 43.477H 126.600M 4.80HD 33 4 HO tlYPOCEHTER SOLUTION 033 P AHD/OR P'INIVALS tlELD AT h tQi (NORHAL DEPTH)

USED IH HYPOCENTER SOLUTIOH HOAA FEELS THIS IS A LESS RELXABl E SOLUTIOH ORIG mAL DATA SOURCE G?L MA(INXTUDE n 4.1 USIttG HOAA AVERAGE HB (IASPEI FORMIJLA) 1500 22 JUH 19Th 21 27 lb.0 49.860H 114.710M 3.00HI 18 CA llYPOCEHIER DEP ftl ASBXGHED STANDARD RNJRS T -1 X=0.07 Y 0.08 Z 0 MOOINARD-CLYI3E CONSULTAtffS 23 APR 81 Q

WOODWARD-CLYDE CON~~ TAlffS 23 APR 8~ 5 ~ ~

~ r 6 PAGE 88 CAT ~ DATE TZHE(GHT) LAT LONG SL ItffEN HAG SM H DIS () 8 LOCATION AND COHMEHTS HO. DAY-HO-YCAR HRWIN-SEC (HH) (KH)(KH) ~

ORIGlttAL DATA SOURCE 55 EPB 3 STATION RECORDINGS USED IN SOLUT'ION HAGNITUI)E ~ 3.00 HL 1501 13 JUL 1973 02:59:30.1 n9.115N 127.8nOM n.80HD 33 8 NO tlYPOCEHTER SOI UTIOH HELD AT 33 KH (NOPJ(AL DEPTH) 011 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION HOAR FEEI S TllIS IS A lFSl RELIABl.E SO(.UTIOH ORIGINAL DATA SOUl55E 55 GS Q

1ti02 18 JUL 1973 21 58 05.n n6.832N 121.828M 3.90 8 UM STATIONS USED= 12, RHS= .23 tlAG STD ERR .10 1503 12 AUG 1973 15 11 20.0 n7.638N 123.568M 3.n6 51 UM STATIOHS USE)= 13 RHS'5 ~ 20, HAG STD ERR .21 150 l 2 SEP 19>> 3 01>39 'll >>2 n3 7 7H 127>>n79M h. 60tlD 22 NO 013 P ANI)/OR P'N;IVALS USED IH t(YPOCENTER SOLUTIOH NOAA FEEt S THIS IS A LESS RELIhBLE SOLUTION ORIGIHAL DATA SOURCE G-

'8 1505 n SEP 1973 17!56>>h9.2 n8a232H 121.158M 3.67 UM STATIOHS USED ln ~ RHS5= .35, HAG STD ERR,22 1506 7 OCT 1973 13-M 10.3 n7>>602N 122>>3+~M 3a27 8 UM STAfIONS USED. 11 RH.. 11, HAG STD ERR .40 1507 12 OCT 1973 05 tin-27.7 n3.736N 127.n69W 5 'OHB -

6 NO 061 P AND/OR P'RRIVALS USED IN tlYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE =- GS HAG)lITUDE I 5,2 USIHG NOAA AVERA()E HS (IASPEI FORHULA) 1508. 22 NOV 1973 22-09 2n.n n3.n73N 126.780M n.50t% 17 HO 01n P AND/OR P'gKIVAI 8 USED IH tlYPDCEtlTER SOLUTIOH 0 ti(thA FEELS Tl(IS IS A LESS RELIAD1% SOLUTION ORIGItlAL DATA SO(JRCE . G 1509 20 DEC 1973 01 08 28,2 nf.868N 119.353W n>>38HC 1510 5 JAN 197n 15 16 1n.1 n2.298tl 126.606M n.OOHD 33 f. NO HYPOCCHTER SOLUTIOH HELD AT 33 KH (NORHAL DEPTH) 8 P AND/Olk P'RRIVALS USED Itl MYPOCENI'ER SOLUTION HOAA FEELS THIS IS h LE" S RELIABLE SOLUTION ORIGINAL DATh SOURCE ~ GS

~ 5 1511 5 JAN 197n 15 2n 05.0 n2.318N 126>>865M n.30)19 33 4 NO tlYPOCEtlTER SOLUTION HELD A'f 33 KH (NORHAL DEPTH) 6 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH '

HOAh FEELS Tl(IS IS h LESS REl IABI.F 801 UTIOH ORIGIHAL DATA SOURCE = GS 1512 5 JAH 197n 15.30 2n.2 n2.5RiN 126,n5nM n 00HB

~ 33 8 NO HYPOCENTER SOLUTIOH HELD AT 33 Ktl (NOFJ(AL DEPTH) 11 P AHD/OR P'fÃIVALS USED IH HYPOCEN!TER SOLUTIOH

}lOAA FEELS THIS IS h LFSP>> RELIABLE SOLUTION ORIGINAL DATA SOURCE = GS 1513 5 JAN 197n 15 37=33.7 n2.632N IÃ.n23M n.60)(B NO tlYPN:E)5!TER SOLlffION I)ELD AT 33 KH (t(ORt(AL DEPTH) 25 P AND/OR P'RRIVALS Itl HYPOCEtlTER SOLUTION ORIGINAL DATA SOURCE <'SUSED HAGHITUDE - n.7 lfSIHG HOAA AVCRAGE HS (ZASPEI FORHULA)

WOODWARD-CLYDE CO)atSULTAlffS 23 APR 81

>> 55 ~ ~

.4>> A

Q CJ l

MOODMARD-CLYDE CONSULTANTS 23 APR 8~ 's s ~ ~

l s/ A ~ ~

lhGE 89 CAT. DhrE TIHE(Gtfr> LONG SL INTEH HAG SH H DIS 0 8 .LOCAT I OH AHD COHHEHTS tfO, DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (KH) 1514 5 JAH 1974 15"54 03s3 42.475H 12hs59'7M -4. 90HB 33 HO tlYPf)CENTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTH) 0 70 P AtlD/OR P'RRXVALS lEED IH HYPOCEHXER SOLUTIOH ORIGIN'J. DATA SOURCE is GS HAGHITUDE 5.1 USIHG HOAA AVERAGE HS (IASPEI FORHULA) 1515 5 JA)l 1974 16.Zi.56.1 42.369H 126.597M 4 '0HD 33 HYPOCENTER SOLUTIOH tfELD AT 33 KH (HOI?tfAL DEPTH) 5 P htfD/OR P ARRIVALS USED IN HYPOCEtffER Sol UTION NOAh FEELS ltlIS IS h LESS RELIABl E SOLUTION ORIGINAL DATA SOURCE ~ GS 1516 5 JAH 1974 17 43.02.1 42.576H 126.333M 4.30HB 33 HYPOCENTER SOLUTIOfsf tlEl D AT 33 KH (HORHAL DEPTH>

15 P AND/Of? P'RRIVi~ (JSFJ) Xtl HYPOCENTER SOLUTIOH HOAA FEELS TtlIS IS h LESS RELIABl..E SOI UTXON Of? IGItfAL DATA SOURCE GS HhGHITUDE 3.9 USIHG HOAA AVERAGE HS (IAfiPEI FORHULA) 1517 5 JAH 1974 23 M"56.7 42.520N 12hs602M 4 s 40HB 33 4 HO HYPOCENTER SOLUTIOH tKLD AT 33 KH (HOfJJAL DEPTH) 15 P AHD/OR P'RRXVALS USED IH HYPOCENTER SOLUTIOH HOAA FEELS TtlIS IS A LESS RELXABLE SOLUTION ORIGIHAL DATA SOURCE ~ GS HAGNITlJDE si 4,0 USING tfOAA AVERAGE HS (IASPEI FORMULA) 1518 5 JAH 1974 23 "29 18.6 42.585N 12hs580M HO 43 P AHD/OR P ARfsIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DATA SOURCE ~ GS HAGHITUDE ~ 4.6 USING HOAA AVERAGE HS (IASPEI FORHlJLA) 1519 6 JAN 1974 12.33-35.3 47.766H 1>M.835M 3.07 50 STATIONS USED- 13 RHS." .20 HAG STD ERR . 8 sQ 1520 6 JAH 1974 14"-41 "13s0 52.090N 118.060M 3 70tL

~ 15 tlYPOCEH'fER DEPTH ASSIGk~D 8TAtll)hRD ERROR. T- 1, X=0.06, Y=Q.04 ~ Z= 0 ORIGIHAL DATA SOURCE ~ EPB 8 STATION RECORDIHGS USED IH SOLUTIOH HAGHITIJDE m 3 10 HH

~

HAGHITUDE ii 3.70 HL 1521 6 JAtl 1974 16:33 30s0 52.090N 118s 110M 3.20HL 14 CA IJYPOCENTER DEPTH ASSIGNED STAHDARD ERRORS- T. Oi X=0 ~ 04i Y=O 03 'm 0 ORIGIN DATA SO( JRCE EPl) 5 STATION RECORDINGS USED IH SOLUTIOH HAGHITUDE ~ 2.60 HH HAGNITUDE si 3.20 HL 1522 17 JAH 1974 08'-48 02,0 49' 120H 116s620M 3s00N 18 HYPOCEtffER DEP'I'H ASSIGtlED 9 STANDARD ERRORS- T~2g X-.-0.13i Y>>O ~ 19 ~ Z~ 0 ORIGItfhl DATA SOURCE s-. EPD 3 STATION RECORDINGS USED IN SOLUTIOH HAfiHITlJDE s= 3;00 HL 15+& 12 FEB 1974 03.04 53.0 50.210N 127.610M 3. 40HL 18 CA HYPOrEtfrER DEPTH ASSIGNED Sfhtff)ARD ERRORS: T-2, X=os14, Y.-0.06 Z 0 ORIGIHAL DATA SOURCE ~ EPB s s 9

MOODMARXI-CLYDE CONSULTANTS 23 APR 81

~ ~

PhriF 90

Q ~ , a- '*

MOODMARD-CLYDE CONSULTANTS 23 APR 81 ti..- -:

PAGE 90 CAT. DATE TIME(GH'f) LhT LONG SL IHTEH MAG SM H DIS 0 S LOCATION AND COHHENTS na. DAY-HO-YEAR HR-MIN-SEC (HH) (KH) (KH) 4 STATION RECORDINGS USED IH SOLUTIOH MAGNITUDE ~ 3.40 Hl 1524 13 FEB 1974 15 45 14.0 49.900H I+M.030M 3. 10'0 CA HYPOCENTER DEPTH ASSIGNED Sl'ANDARD ERRORS T.=2) X<0.13) Y=-ososg Z< 0 ORIGIHAL DATA Sm)RCE EPB 4 STATIOtl RECORDIHGS USED IH Sol.UTIOH HAGNITUDE ~ 3.10 tll 1525 4 HAR 1974 18 1/:34.1 43.541tl 126.892M 5.00HD 33 HO I-IYPOCEHTFR SOLUTIOH HELD AT 33 KH (tIORHAL DEPTH) 18 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGIH/'J DATh Sm)RCE GS 1526 23 HAR 1974 19:09.40.9 42.68ltl 126.094M 4.50HB 33 4 HO HYPOCElfrER SOLUTIOH HELD AT 33 Ktl (tlORHAL DEPTH) 6 12 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION tIOAA FEELS TIIIS IS h LESS RELIABLE SOLUTIOH GRIGINAL DATA snURcE Gs 6 0 1527 20 HAR 1974 01256 26.9 42.597N 126.390M 4. 60tIB 33 4 HO HYPOCENTER SOI UTIOH IIELD AT 33 KH (HORHAL DEPT)I) 12 P hHD/OR P'RRIVALS USED IH HYPOCEtffER SOUJTION NOAA FEELS THIS IS h LESS RELIABI.E SOLUTIOtl ORIGINAL DATA SOURCE GS 1528 20 APR 1974 03-00 10,5 46 813H 121 611M

~ ~ 4. 65 IN STATIONS USED 10 RHS .33 HAG STD ERR .22 1529 21 APR 1974 14=00 54.5 46.761H 121.556M 3o48 IN STATIONS USED~ 11'HS~ .20w HAG STD ERR~ .50 1530 29 APR 1'974 16 15-"00.2 43.376H 126ab67M 4. 50)ID 33 IIYPOCEtffER SOLUTIOH IIELD AT 33 KH (t!ORHAL DEPfH) 28 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH HOAA FEELS THIS Is h LESS RELIABLE SOLUTION ORIGINAL DATA SOURCE ~ Gs 1531 15 HAY 1974 20 52 42.0 52.290H 115.160M 3. 60HN 18 'CA HYI OCE)frER DEPT)I AS IGtIED STAHDARD ERRORS: T~1, X=0.05t Y"--0.04, Z= 0 OR1GIHfJ DATh SOURCE ~ EPB 10 STATION RECORDIHGS USFD IH SOLUTION HAGHI fUDE = 3.60 HN 9 1532 16 HAY 1974 13 04 36.4 40.104tl I'~.984M 4 '7 53 UM STATIONS USED- 11 RHS ..12 HAG STD ERR .28 1533 21 HAY 1974 15-47 "~~.9 46.214N l>M. 1~v 3e51 11 UM STATIONS USED~ 9t RHS~ .23 ~ HAG STD ERM ~ 44

'534 22 HAY 1974 lit50 10.3 48.608N 1~+ 970M

~ 3. 11 14 STATIONS USED'-" 12m RHS=- .2bg HAG STD ERR: ~ .30 1535 25 HAY 1974 06 59 20.0 47,956H 121.886M 3.30 22 UM STATIONS USED= 13'HS=. ~ 20'AG STD EFR~ ~ 00 1536 30 HAY 1'974 01:00.-02.0 49.200N 127.650M 3,80HI 10 Ch IIYPOCEHTER DEPT)I ASSIGNED STA)ID') ERRORS T~2y X=0,18y Y~o 13'= 0 ORIGIHPJ DATA SOURCE ~ EPB 13 STAl'ION RECORDINGS USED IN SOLUTIOtl MAGNITUDE ~ 3.80 HL MOODMAIJ3-CLYDE COHSULTAHTS 23 APR 81

0 '

0 WOODMARD-CLYDE COHSULTAHTS 23 APR 81~

n PAGE 91 (JIT. DATE TIME(GMT) LAT LONG SL INTEH MAG SM O'XS 0 S LOCATION AHD COMMENTS HQ. DAY+no-YEAR HRWIH-SEC (MM) (KM)(KM) 1537 8 JUH 1974 14-13z27.5 42.777k -126, 150M ne XOMB 33 1'O 5 P AND/OR P'RRIVALS USED IH IIYPOCFHTER SOLUTION A HOAA FECLS THIS IS A (ASS RELIABLE SOLUTIOH ORIGINAL DATA SOIJRCE ~ GS 1538 6 JUL 1974 18:18".41.0 51,220k 115,680M 3. 10MH 18 CA tlYPOCEHTER DEPTH ASSIGNED STANDARD ERR()RS T 1 y K'0 ~ 08 g Y 0 ~ 08 g Z 0 ORXGItfhl DATA SOURCE r EPD 6 STATIOH RECORDIHGS USED IH SOLUTION MAGNITUDE .= 3.10 tfw 1539 20 JUL 1974 19 15 57aa 49.700N 127s040M 4. 20ML 18 IIYPOCEtfTER DEPTH ASSIGNED STA)mARD ERRORS: T=1. x--o.as, Y o.a5, Z o ORX()IHAL DA'fh SOURCF ~ EPI) 13 STATION RECORDINGS lfSED IH SQLUTIOH MAGNITUDE ~ 4.20 ML 6 15no 26 JUL 197n 23-.36.-03.0 n8.717w 114,8ssW 3.70N'3 NO 19 P AHD/OR P'RRIVALB USED XN llYPOCEHTER SOLUTXOH ORIGINAL DATA SOURCE ~ GS LOCAL MAGHITIJDF ~ 3.70 SCALE =ML AUTHORITY= GS lun1 18 AUG 1974 19 23 29,5 43.788H 127.229M 4. 10MB IIYPQ(xw'rER sol.uTxow IIELD A'r 33 KM (tforJnAL DEPTtf) 8 P AHD/QR P ARRIVALS usED xw HYPOCENTER sOLuTxow NOAh FEELS THIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SalfRCE a Gs o 1542 20 SEP 1974 11 33 49.0 50.100k 127.790() 3. 50ML 10 STA)mARD ERwRS. -I HYPQCEt(TER DEPTtl ABSIGH'ED 2, x=a.xn, Y o.os, Z= o ORIGIN('J DA'I'h SOURCE EPD 4 STATXOH RECORDINGS USED IH SOLUTIOH MAGNITUDE ~ 3.50 ML 9 1543 18 OCT 1974 19."36 48.9 43.479k 126.392M 4.00I% 33 0 HQ tlYPOCEHTER SOLUTIOH ttELD AT 33 Ktl (NORMAI- DEPTH) 6 P AHD/QR P'Rf<IVALS l)SED IH HYPOCEHTER SQLUTIQH-HOAh FEELS 1HXS IS h LESS RELIABLE SOLUTION QRIGxtfAL DATA SOURCE .= Gs 1544 19 OCT 1974 22"09"42.5 43.290H 126.490M 4,50MB 33 Ir. NQ t(YP(KE)rrER COLUTIOH tlELD AT 33 KM (NQR)IAL DEPTH)

O 12 P AND/OR P'RRIVALS USED IN IIYPOCEHTER SOLUTION HOAA FEELS THXS IS h LESS RELIABLE SQLUTIQH ORIGINAL DATA SQURCC ~ GS 1545 21 OCT 1974 13-21:00.1 43.602k 126.606M 4.30MB 33 4 HO MYPOCE)ffEfl SOLUTIOH tfELD AT 33 KM (NOIVIAL DEPTH) 7 P AHD/OR P'RRIVALS USED IH HYPOCEHI'ER SOLUTIOH HOAA FEELS THIS IS h LESS RFI IABLE SOLUTIOH OftxsxtfAL DATA SOURCE = GS O 1546 28 OCT 1974 09t38 39.4 48.174N 127.684M 4.20MD 33 1: HO HYPOCEHTER SOLUTIOH tfELD AT 33 KM (NORMAL DEPT)l) 10 P AN)/QR P'RRIVALS USED IN HYPQCEHTER SQLUTXOH NOAA FEELS THIS IB h LESI RELIABLE SOI..UTIOH ORIGI?IAL DATA SOURCE ~ GS 1

WOODMAfiD-CLYDC CQHSUI TAISfS 23 APR 81 porc ~~

8 MOODMARD-CLYDE CONSULTNffS 23 APR 8~

PAGE 92 CAT. DhTE TINE(GHT) LAT LONG SL INTEN HAG SH H DIS Q 8 LOCAT I OH AHD COHHEHTS HO. DAY"HO-YEAR HR-HIH-SEC (HH) (KH) (Ktl) 1547 1 NOV 1974 20 22-50.6 48.677H 123.214M 3.50 58 UM S'fhTIOHS USED~ 13@ RHS- s 17'AG STD ERR.i 22 C) 1540 17 HOV 1974 13 45" 09.3 43.709N 127 124M

~ 4.00tIB 4 NO HYPOCENTER SOLUTIOH HELD AT 33 KH (tIORFIAL DEPTH)

I 9 P hHD/Oa P'RRIVALS USED IH HYPOCEHrER SOLUTION HOAA FEELS THIS IS h LESS RELIABLE SOLUTION ORIGIHAL DATA SOURCE GS 15 9 17 HOV 1974 15 27 5'9 4

~ 43 498H 127 036M

~ 5.10HD 12 HO 50 P AHD/OR P'RRIVALS USED IH HYPOCEFITER SOLUTION ORIGINAL DATA SOURCE GS 1550 25 tIOV 1974 02"43 14.0 49.840)I 127 '20M 3. 30tkl 18 Ch HYPOCEHTER DEPTtl ASSIGNED STAFIOARD ERRORS: T 2, X 0.13, Y. 0.07, Z= 0 ORIGINA DATA SOURCE EPD 4 STATIOH RECORDIHGS USED IN SOLUTIOH tIAGHITUDE ~ 3.30 HL 1551 13 DEC 1974 03-"28 54 2

~ 45 265N 121.599M

~ IV 4 '0IID 22 NO REPOITfED FELT It(FORHhl'IOH 32 P A)ID/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGIFICS DATA Sni)RCE -- GS LOCAL HAGHITUDE 4. 00 SCALE -"HL AUTHORITY= GS 1552 15 DEC 1974 02"25 19.0 42.510H 126.583M 4 s 20)ID 33 8 HO HYF'OCEtflER SOLUTION IIELD AT 33 KH (HORHAI DEPTH) 9 8 P A)ID/OR P'RRIVAI& USED IN HYPOCEFITER SOLUTIOH HOAA FEELS THIS IS h LESS RELIABLF. SOLUTIOH ORIGINAL DATA SOURCE = GS 1~3 17 JAH 1975 04-18 56.1 47.442tl 114.3S3M 4 '0HD . 5 HO REPORTED FELT XHFORHATIOH HYPOCEtlfER SOLUl'ION DEPTH RESTRAItIED BY CiEOPHYSICIST 30 P AND/OR P ARRIVALB USED IH klYPOCEFITER SOLUTIOH ORIGINAL DATA SOUFiCF GS O 15 4 29 JAH 1975 04 42" 14.0 49.700N 119,710M 3. 10IFL 10 - Ch DEPI'H RESTRhINED ~

5 STATIONS USED IH SOLUTIOH.

ORIGIHAL DATA SOURCE = EPB 1555 31 JAN 1975 08=10 00.0 44.732)I 116. 438M IV MEST YEI.LOMSl'OHE~ HOHT.

SEVEFiAL AFTERSHOCKS FEL'T 1556 31 Jhtl 1975 08 54 45.1 48.174M 114.142M 4. 10HB 5 HO REPOliTED FEL f INFORHhTIOH HYPOCEtll'ER SOLUTION DEPTH RFATRAIHED BY GEOPHYSICIST 35 P AHD/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTION ORIGIHAL DATA SOURCE =- GS LOCAL HAGFIITUDE = 3.00 SCFiLZ =.ML AUTHORITY GS 1SS7 2 FEB 1975 02"06 00.0 40.170H 114.140M 3,20tf f 18 Ch DEPTH RESTRAINED.

4 ST*TMHS USED IH SOLUTIOH.

ORIGIHAL DATA SOURCE EPD ii%8 4 FEB 1975 01-3>-52.1 40.213H 114. 110M VI 4.60HB 0 HO REPORTED DAHF'NE 9 50 P AHD/OR P'RRIVAID USED IH HYPOCENTER SOLUTIOH ORIGIFIAL DATA SOIFRCE = GS MOODMARD-CLYDE GONNA TAFITS 23 APR 81 i ~,

6 0

- ~

MOODMARD-CLYDE COHSLJLTA)frs 23 APR 8~

PAGE 93 CAT. DATE TIHE(GHT) LAT 'OHG SL ItffEN HAG SH H DIS Q 8 LOCAT I OH AHD COHHEHTS HO. DAY<(0-YEAR HAIN-SEC (HM) (KH) (KH)

LOCAL MAGNITUDE 5. 00 CALE -HL AUTIIORITY= GS 1559 17 FEB 1975 09 10 26.1 43.565N 126.0051J 4.60(& 33 HO HYPOCENTER SOLUTION )IELD AT 33 KH (NORMAL DEPTH) 19 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATA SQLIRCE . GS MAGNITUDE .= 4.1 USIHG HQAA AVERAGE HS (IASPEI FORMULA) 1560 1 HAR 1975 16 "29:17. 4 43.320H 126.222M 4.40MB HO IIYPOCFHTER SOLUTIOH )IELD AT 33 KH (HORHAL DEPTH)

Q 33'.

10 P hND/OiR P'RRIVALS USED IN HYPOCEHTER SO'TIOH ORIGINAL DATA SOURCE ~ GS 1561 17 HAR 1975 21 06 07.2 50.208H 114 062M

~ 10HB NO HOH-1'ECTONIC ASSOCIATED PHE)IOMEHA ACCIDE)ITAL, CONTROLJ ED OR SLISPECTED EXPLOSION 16 P AHD/OR P ARRIVALS USED IH )IYPOCEHTER SOLLJTIQN ORIGINA( DATA SQUttc = GS 1562 19 HAIL 1'975 12"09 20.4 49.314N 127.350M 4. 20( 10 33 HO HYPOCEN'IER SOLUTION HELD AT 33 KH (HORHAL DEPTH>

11 P Ri(D/OR P'RRIVALS USED IH HYPOCENTER SOLUTIQH HOAh FEELS 'fHIS IS A LESS (LELIADLE SOLIJTIOH ORIQIHAL DATA SOURCE = GS 1563 31 HAR 1975 05"48-38.0 4'9.270H 125.960M 5 40ML - 10

~ CA DEP'I'H RES fRAIN%.

23 STATIONS USED IN SQI UTION ~

ORIGIHN DA'fh SOURCE EPB 1564 10 f'K 1975 10z',)/!16.7 46 929H 1'21.594M 3.70HB 2 M NQ 30 P AHD/OR I ~ ARI"IVALS USED IN IJY OCEHTER Se.UTIOH 0

~

ORIGINAL DATA SOLIRCE GS

'PAILAMETERS OF EPICE)JTER FROI'I UHIV, MACHIHGTONq SEATTLE LOCAL HAGNITLJDE ~ 3.50 SCALE --HL AUTLIORITY~ GS 9

lb 09t29.0 47.570H I'M.905M 4.00H'7. REPORTED FELT IHFORHATIOH APR 1975 V

'S 1565 19 M HQ 20 P AHD/OR P'RRIVALS (ISED IH HYPOCEHTER SOLUTIOH ORIGINAL DA'I'h SOLJILCE PA(LAMETERS OF EPICEHfER FROM UNIV. LJASHIHGTOH ~ SEATTLE Mh( HITIJDE(FRACTIONAL H(JThTIOH,AVE) 4.00, ALJT)(ORITY-SEA LOCAL HAGHITl(DE 3. 30 SCALE -HL AUlltQRITY= GS 1566 10 APR 1975 04-57 5bih 4hi943N 121ib39M III 3.90MB 5 M HO FiFPORTED FFLT IHFORHATIOH 25 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION ORIGIHAL DATh SOURCF ~ GS PARAMETERS OF EPICENTER FROH UHIV. LJASHIHGTON, SEATTLE LOCAL HAGHITUDE ~ 3.90 SCALE ~CL AUTHORITY= SEh 1567 23 APR 1975 01 03 42.4 47.Q76H 1>M.647M VI 4. OOMD 46 M NO REPORTED DAHAGE 9 40 P AND/QR P hRRIVAL.S US D IN HYPOCENTER SOLUTIQH QRIGIHfJ DA'I'h SOURCE i GS PA(RMEIHK OF EPICEHfER FROH UNIV. MASHINGTOH, SEATTLE LOCAL HAGNITLJDE 3.00 SCALE HL ALJlHORITY= GS 1568 3 JRJ 1975 09 43-54.5 44,095H 115.290M 3.30MB '5 NO HYPOCE)(TER SOLIJTI()N DEPTH RESTRAIHED BY GEOPHYSICIST 13 P AHD/OR P'RRIVhLS LISED IH HYPOCEHTER SOLUTIOH ORIGIHPJ DATA SOURCE i- GS LJOODMMD-CLYDE COHRJLTA)ffS, 23 APR 81

g f

MOODMARD-CLYDE COND(LTANrS 23 APR 8~

I'AGE 94 CAT. DATE TltlE(Gtff) LAT LONG SL INTEH t(AG SH ll DI8 0 8 LOCATION AHD COHHEHTS HO. DAY-t(O-YEAR HR-HIN-SEC (HH) (KH) (KH) 1569 5 JUtl 1975 04 47 54.0 48.810H 124.370M 3. 00HL 18 Ch DEP CH RESTRAINED.

3 STATIONS USED IH SOl.UTIOH.

ORIGINAL DATA SOURCE r EPB 1570 15 JUH 1975 17 51 31.5 4bo237N 119 103M

~ 3.12HC UM, FEL'r 1571 28 JUN 1975 16 33 43s7 46.129N 119.702M 3.30HC 11 1572 28 JUH 1'975 22" 17 "52. 6 46. 118H 11'9 e 697M 3.81HC 10 UM FELT 1573 1 JUL 1'975 05 28-02.2 45.627H 120.001M 3.59HC 15/4 7 JUL 1975 20 41 17.8 46.074H 11.8.449M 3. 18(IC 3 1575 14 JUL 1975 05 80-34.6 47.325N Iran.407M . V 3. 45t(' M HO REPORTED FELT INFORHATIOH 17 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE r: GS PA(4ht(ETERS OF EPICEt!TER FROH UNIV. MASllIHGTOHi SEATTLE LO(:AL HA('HITUDE . 3. 45 SCALE rCL AUTHORITY SEh 1576 17 JUL 1975 07 33 56.9 43.799N I+Ao774M 3.90t(B; 33 . f. HO HYPOCEHTFJ( SOLUTIOH t(ELD AT 3 KH (HOfd(AL DEPTH) 7 P At(D/OR P'RRIVALS USED IH HYPOCEt(TER SOLUTIOH NOAA FEELS fHIS I. A LES! RELIABLE SOLU'rION ORIGINAL DATA SOllRCE = GS 1577 24 JUL 1975 05 39 57.1 43.204H 126.214M 4.90HB 33 8 N) llYPOCEHTER SOLUTIOH )(E).D AT 33 Ktl (HOIJ(AL DEPTH) 6 16 P At(D/OR P'RRIVALS USED IN HYPOCFHTFR SOLUTIOH '

HOAA FEEl 8 Tt(IS IS A LESS RELIABLE SOI UTION ORIGIHAL DATA SOURCE = GS 0 0

1578 24 JUL 1975 11 42 11.8 47.323N 122.407M 3.40N'EPORTED FELT IHFORHATIOH 20 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINA'- DATA SOURCE - GS Ph((ht(EIERS OF EPICEtflER FROH UNIV. MASHIHGTOtlg SEATTLE LOCAL HfANITUDE a 3.40 SCIL E rCL AUTHORI(Yr SEA 157'9 25 JUL 1975 04 13 21.5 43.61SH 127.017M . 4.50HD 33 HO !IYPOCEH'fER SOLUTIOH !HALD AT 33 KH (HORI(AL DEPTH) 6 35 P At!8/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE r. CiS HAGHIT(lDE - 3 8 USItlCi HOAA AVERAGE HS (IASPEI FORHULA)

~

1580 27 JUL 19'75 04 15-41.0 43.678H 127.1ShM 4.70HB 31 HO 38 P AND/OR P'RRIVALS USFD IN llYPUCEHTFR SOLUTION ORIGINAL DATA SOURCE = GS HAGHITUDE . 4.2 USIHG NOAA AVFRAGE HS (IASPEI FORt(ULA)

.1581 29 JUL 1975 01"48 Iba2 43.687H 126.103M 5.20HB 33 HO HYPOCEHTER SOI.UTION llELIl AT 33 KH (HOMAL DEPTH)

Q 68 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGlt!A( Dhrn SoiaCE - GS HAGHITU()E = 3.8 USING HOAA AVE((AGE HS (IASPEI FORHULA)

MOODMARD-CLYDE CONSULTAtff8 23 APR 81

~ ~

'~d'.ZSf'Ik'~

Q ~'

MOODMARD-Cl YDE CONSIJLTAtfra 23 'APR 81

~ ~

a PAGE 95 CAT. DATE TIHE(GHT) LAT LONG SL IHTEH HAG SH tl DIS 0 8 LOCATION AHD COHHEHTS NO. DAY-HO-YEAR HR-HIH-SEC (HH) (KM) (KH) 1582 6 AUG 1975 21 M-07 8 43.088M 126.195M

~ 4.90HD 33 4 tIO IIYPOCEHTER SOLUTIOH HELD AT 33 KH (HORINL DEPTH) 18 P AHD/OR P'RRIVALS USED IH HYPOCEtITER SOLUTIOH HOAA FEELS THIS IS A LESS RELIABLE SOl.UTIOH ORIGIHAL DATA SOURCE - GS 1583 18 SEP 1975 12 19 28.'5 47 '96N 118.231M 3.50HC 1 UM 1584 25 SEP 1975 06 26 40.2 43.401H 126.869M 4. 20HD 33 B HO HYPOCENTER SOLUTIOH HELD AT 33 KH (HORHAL DEPTH) 7 P AHD/OR P'RRIVALS USED IH MYPOCEHTER SOLUTIOH HOAA FEELS fHIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA sOURCE = rs HAGtIITUIJE 3,4 USIHG tIOAA AVERAf)E Ifs (IASPEI FORHIJLA)

O 1585 M'SEP 1975 21 23 53 0

~ 48.110H i>W.450M 3. 10HL 18 CA DEP'f M RESTRAI HED.

4 STATIOHS USED IH SOLUTION.

ORIGINAL DATA SOIJRCE .-" EPD 1586 3 OCT 1975 22 31-26.0 48.650M 122.830LI 3,00HL 18 Cn DEPrtI RES(RAINED.

5 Sl'ATIOHS USED IH SOLUTION. ~

ORIGIHAL INfA SOURCE =. EPD 1587 14 OCT 1975 11 54 15.0 47.350H 124.420M 3. 10HL 18 CA DEPTH RESTRAIHED ~

O 3 Sl'ATIOHS USED IH SOLUTIOH.

ORIGItLAL DATA SOURCE ~ EPD

'9 1588 20 OCT 1975 14 17:54.8 48.202H 114.275M 4 o 30MB 25 HO IIYPOCEHTER SOLUTIOH DEPTH RESTRAINED BY GEOPIIYSICIST 19 P AND/OR P'RRIVALS JIBED IH HYPOCENTER SOLUTIOH ORIGItL>J DAI'A SOURCF r.. Gs 1589 22 HOV 1975 22."54 03.1 43.418H 126.750M 4.30HB 33 IJ HO HYPOCENTER SOI.IJTIOH IIELD Al 33 KM (HORHAL DEPTH) 11 P AND/OR P'RRIVALS USED IH HYPOCEtITER SOI UTIOH tIOAh FEELS TIIIS 18 A LESS RELIABLE SOLUTIOH ORIGItIAL l)ATA SOURCE ~ GS HAGHITlJDE ~ 4.0 USIHG NOAA AVERAGE HS (IASPEI FORMOL) 1"90 24 HOV 1'975 13.00.~.0 46.400H 126.5'90LI 3s30N 18 CA DEPTH RFSTRAIHED ~

3 STATIOHS USED IH SOLUTIOH ~

ORIGIHl'J DATA SOURCE ~ EPD 1591 29 HOV 1975 loi50=30.0 49 430H 126.790M

~ 4.40N 18 . Cn DEP III RESTRAINED.

14 STATIONS USED IH SOLUTIOH.

ORIGItIAL DArA sour'rE .= EI B 1592 o HOV 1975 Io 48 21.0 49.230H 1>w.620M 4 90N

~ 10 CA DEPTH RESTRAINED.

23 STATIONS USED IH SOLUTIOH.

ORIGItIAI DATA SOIJIwE -. EPB 1593 30 HOV 1975 10 51 49.0 49.230H 123.630M 3.20tQ 18 CA DEP1 tl RESTRAIHED.

3 sTATIOtls LJSEn IN SOLUTION.

ORIGItIAL DATA SOURCE ~ EPB MOOIJMARD-CLYDE COHSULTANTS 23 APR 81 Pl!.780M

~ 3.80HI 18 DEP IH RFSTRAIHED.

A 9 STATIONS USED IH SOI.UTION.

ORIGINAL DATA SOURCE EPD 1595 12 DEC 1975 15 40 54.0 46.310H 126.470M 3. 20HL 18 DEPTH RESTRAIHED.

3 STATIONS USED IH SQLUTIOH.

ORIGIHAL DATA SOURCE n EPB 1596 13 DEC 1975 11"-27=43.0 46.280N 126.370M 3.60HL 18 Ch DEPTH RESTRAINED.

3 STATIONS USED IH SOLUTIONi ORIGItIAL DA'IA SOIIRCE n EPB 15'97 26 DEC 1975 04" 44i 09i5 44.597H 115i150M 3.50HB 5 HYPOCEHTER SQLUTIOH DEPfH RESTRAINED BY GEOPHYSICIST 19 P hHD/Qfl P'RRIVALS USED IH HYPOCEHIER SOLUTION

=HOhh FEELS fHIS XS A LESS RELIABLE SOLUTION ORIGINAL DATA SOURCE = GS Hhl HITUDE(FRACTIONa HorhTION,AVE) 3.30, AUTIIORITY-ERD LOCAL HAGHITUDE ~ 2.90 SCALE ~HL hUTtKIRITY~ GS 1598 26 DEC 1975 04e46-47,2 44.~&I 115.218M 3 '0N' 0 NO HYPOCENTER SOLUTIOH DEP'f}l f&STRAI)IED BY GEOf HYSICIST 11 P htID/OR P'RRIVALS USED IH HYPOCENTER SOLUTION HOAA FEELS 'IHIS IS A LESS RELIABLE SOLUTIOtl ORIGINAL DATA SOURCE ~ GS HAGNITUDE(FRACYIOtfffl NO'I'ATIOH,AVE) 3.80, AUTHORITY-ERD LOCAL HAGHITUDE ~ 3.10 SCALE i ML AUTHORITY~ GS 1599 4 JAH 1976 14 04 35.0 49.270N 123.640M, 3.10HL 18 Ch DEPTH RE'RAIKiED.

3 STATIONS USED IN SOLUTION.

ORIGII'fhL DA'IA SOURCE ri EPD O 0

1600 5 JAN 1976 13 25E43.8 47.460H 122.599M IV 2 '0N'2 REPORTED FFLT IHFORHATION 13 P AHD/OR P'RRIVALS USED IH HYPOCEtffER SOLUTION o r GS

)

ORIGIHFJ DhTA SOURCE LOCAL HAGHITUDE n 2.90 SCf J.Z ~

PARA)IEfERS OF EPICEtlTER FROH U)IIV. MASHIHGTONy SEATTLE AIIIHQRITY~ SEA ok 1601 10 JAH 1976 08r58!45,2 43.551H 1'27.431M 5 i 40HB 33 NQ tlYPOCE)ITER SOLIJfION HELD AT 33 KH (NORMAL DEPTH) 51 P AHD/OR P'Rf<IVALS USED IH HYPOCENTER SOLUTIOH o i ORIGDIAL DA'fh SOURCE r GS 1602 13 JAN 1976 17" 09 31.3 44.463tl 117.730M 3.80H' 4 tfO HYPOCE)flER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST o 6 P At(D/OR P'RRIVALS USED IN HYPQCEHTER SOLUTION )

NQAA FEELS ff!IS IS A LESS RELIABlE SOLUTIQN ORIGINAL DATA SOURCE ~ GS LOCAL HAGNITUDE = 3.80 SCALE =HL AUT)IQRITY= AEC 1603 14 JAH 1976 06"06 w.8 44.130H 127.958M 4.50I& 33 4 HO HYPOCENlER SOLUTION HELD AT 33 Kt'I (HORHAL DEPTH) 9 P AND/Oft P'RRIVALS USED IH HYPOCEHTER SOLUTIOH HOAh FEELS THIS IS h LESS RELIABLE SOl.UTION ORIGINAL DATA SOURCE ~ GS O

MOODMARD-CLYDE CONSULTANTS 23 APR 81 i

I ni ~ r ns

0 ~ a MOODMARD-CLYDE COHQ)LTAtfl'S 23 APR 8~ la 6

PAGE 97 CAT. DATE TltIE(GMT> LAT LONG SL INTER MAG SM H DIS 0 S LOCATION ARD COMMEHTB HO. DAY-MO-YEAR HR-MIH-SEC. (MM) (I(M) (IQ(>

3.90H'0 a'604 18 JAtl 1976 08 38:01.2 48.587H 125.551M M HO REPORTED FELT IHFORMh'fIOH 25 P AHD/OR P'RRIVALS USED IH HYPOCEIITER SOLUTIOH ORIGIHAL DATA SOURCE' GS PARAMElKRS OF EPICEtlTER FROM UHIV. MASHIHGTOH, SEATTLE LOCAL MhGHITUDE 3 90 SCALE ML

~ AUlHORITY= OTT 1605 21 JAH 1976 13 43 29 6~ 48,221M 114.095M IV 3. 10H' h'0 REPOI'TED FEI T IHFORMATIOH HYPOCEHTER SOLUl'IOH DEPTH RESTRAINED BY GEOPHYSICIST 21 P ARD/OR P ARRIVALS USED IH tlYPOCFHTER SOLUTIOH ORIGINAL DATA SOURCE aa GS LOCAL MAGNITUDE 3. 10 SCALE =ML AUTHORITY GS 1606 24 JAH 1976 16 08 55.0 52.180H 115a220M 3. 10rrr Ch DEP'(H RESrRAINED.

6 8 STATI(IHB USED IH SOLUTIOH.

ORIGIhAL DAlh SOURCE = EPI'h 1607 26 Jhtl 1976 19'6 51.0 52a200H 115 200M

~ 3.0QRT 5 DErrH RESrRAI¹D.

7 STATIOHS I)SED IH SOI UTIOH.

ORIGINAL DATA SOURCE EPB 1608 m.JAH 1976 03.-09".31.3 47.875R 12 a 171M IV - 2.75N'9 M RO REPORTED FELT IHFORMATIOH 21 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH ORIGINAL DATA SOURCE ~ GB PARRKTERS OF EPICE)IfER FROM UtlIV~ MASHItIGTOHy SEATTLE LOCAL MMIITUDE . 2.75 SCALE CL AlffHORITY= SEA 1609 27 JAtl 1976 16 06.47.5 43.571R 127.408M 5.20MB 33 4 RO }IYPOCEHTER SOLUTIOR HELD AT 33 KM (NOfc)IAL DEPTH) 103 P AHD/OR P'RRIVALS USED IN HYPOCEtlTER SOLUTIOH NOAA FEELS THIS IS A LESS RELIABLE SOLUTIO)I ORIGINAL DATA SOUPaaE ~ GS MAGNITUDE 4.9 USING tIOAA AVERAGE MS (IACPEI FORNCLA)

L()CAL Mhr~IITunE 5.00 sCALE --ML huTHORI I I 1610 29 JAH 1976 18"45-54a3 43.560R 127.248'M 5,20MB 33 ' HO HYPOCEHTER SOLUTIOH HELD AT 33 KM (NOR)IAL DEPTH>

102 P hND/OR P'RRIVALS USED Itl HYPOCE)ITER SOLUTIOH HOAh FEELS THIS IS h LESS le IABLE SOLUTIOtl ORIGIHAL DATA SOU~i fiS MAIRIITUBE . 4.7 USING HGAA AUERAGE Ms (IABpEI FGRMULA) 1611 31 JAh 1976 12 7 14.0 48a348R 122a319M 'V 3a00R'8 RO REI ORTED FELT It,'FORMA'rlON 16 P A)ID/OR P'RRIVALS l)SED IH HYPOCENTER SOLUTIOH ORIGIHAL DATA SOURCE . GS PA(~fERS OF EPICEtffER FROM M)IIV. MASHINGTOH SEATTLE LOCAL Mh(wITUDE 3.00 scn E =CL AI)THORITY= SEA 1612 10 MAR 1976 02-29 59.0 47.820N 115.820M 3.10N 18 CA DEPTH RESI'RAINED, 3 STATIONS USED IH SOLUTIOH.

ORIGINAL DATA SOURCE " EPD 1613 10 MAR 1976 03"-54 51.0 49,260R 1>M.690M 3.60N 18 CA DEP'fH REb'IRAIRED.

8 SlATIONS USED IN SOLUTION.

MOODMARD-CLYDE C055%ILTARTS 23 APR 81 aaa. a +f' PACIF, 98

~ aa j

~ &~

5 MOODMARD-CLYDE CO))NJLTANTS 23 APR 8

'I PNK 98 TINE(fuff)

CAT ~ DATE LAT LONG SL IHTEH HAG SH H DIS 0 8 LOCATIOH AHD COHHEHTS HO, DAY-HO-YEAR HRWIH-~MC (HH) (KH) (t(H)

Q ORIGINAL DATA SOURCE EPD 161h 16 HAR 1976 11 "54 h2.5 h3.856N 127.995M h.30HB 33 4 HO HYPOCENFER SOLUTIDH ))ELD AT 33 KH (t)OF@)AL DEPTH) 2h P AND/OR P'RRIVALS USED IH HYPOCEHl'ER SOLUTION t)OAA FEELS ft)IS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE ~ GS l)AGHITUDE 3.6 USING HOAA AVERAGE HS (IASPEI FORNJLA) 1615 13 APR 1976 00-47 17.1 hi5.221N 120>>771M VI ' 0.50)1D 15 HO REPORTED DJ'PAGE k)YPOCE))TER SOLUl'IOH DEPTH RESTRAINED BY GEOPHYSICIST 96 P AHD/OR P'RF>>IVALS USED IH )IYPOCEHTER SOLUTION URIGI'HAL DATA SOURCE = GS ISOSEIS))AL t)AP PUF4.ISHED BY P HAGNITUDE 3.3 USING t)OAA AVERAGE HS (IASPEI FORt)UI.A)

LOCAL HAGNITUDL h. 80 SCAI E HL AUTHORITY.= IIS 1616 17 APR 1976 02 11 hh.h h5.080H 120.797M 4 ~ 20N'5 HO REPORTED FEL'f IHFORHAT ION HYPOCEt)TER SOLUTIOtl DEPIH RESTRAINED BY GEOPHYSICIST h2 P At)D/OR P'RRIVALC USED IH t)YPOCENTER SOLUTIOH ORIOIHAL DATA SOURCE .= GS LOCAL HAGHITUDE 0.20 SCAIS HL AUTHORITY= GS 1617 22 APR 1976 Qh 21 39.1 h3.636H 127.005M 4.20ND 4 HO HYPOCEHTER SOLUTION tlELD AT 33 IQ) (HOFdVJ DEPTH)

Ct 27 P AHD/OR P'RRIVALS O'D IH klYPOCEHTER SOLUTIOH HOAA FEELS 'fHIS IS h LESS RELIABLE SOI UTIO)l ORIGIHAl. DATA SOURCE GS 1618 2h APR 1976 08" h9" 12.0 h8.255H 11h,089M 3.5QH' 'O t)AGNITUDE = 3 h USING HOAA AVERAGE HS (IASPEI FOFRULA)

~

REPORTED FEI T IHFORHA'fIOH HYPOCEt)TER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST 23 P AHIJ/OR P AMxIVALS USED IH HYPOCEHl'ER SOLUTION ORIGBJAL DATA SOURCE GS e HAGHITUDE(FRACTIOHAI NOTATION AVE)

LOCAL t)AGHITIJDE ~ 2.90 SCALE ~ 3.50 ~ AUTHORITY-HSO AUTHORITY= GS 6 1619 25 hPR 1976 11-20 11.0 'r)9.41QN 127.110M 4, hO))I 18 Ch DEPTH RE"FRAINED.

IH SOLUTIOH.

8 STATIONS USED ORIGI)lAL Dhl'h SOURCE EPD Cl 1620 28 APR 1976 08-39-58>>5 hi7>>787N 122>>336M 3>> OON'3 M HO 15 P AHD/OR P'RRIVAI 8 IJSED IH HYPOCENTER SOl UTION ORIGINAL DATA SOURfE o (iS PARtNEFERS OF EPICEÃfER FROH UHIV MASHIN(ifOHg SEATTLE

~ j.

I LOCAL t)ASH TUBE 3. 00 SCALE -Cl AU INOR ITY SEA C 1621 15 IQY 1976 13=Oh 53.6 47.706H 120.033M 3. 05l)C 5 0 5.40N

,1622 16 HAY 1'976 08 35 15>>0 hi8.800N 123>>340M 18 Ch DEPTH RESTRAIHED.

32 Sl'ATIONS USED IH SOLUTIOH. 0 f.

ORIGINA) DATA SOIJRCE . EPB 1623 6 JUH 1976 02 17 18.0 h9.0hOH 127.860ll 5. OOYiL 18 Ch DEPTH RESTRAI))ED:

23 STATIONS USED IH SOLUTIOH ~

MOODMARD-CLYDE CO)lSIJLTANTS 23 APR 81

6 MQODMARD-CLYDE COHSIJI TAHl'8 23 APR 8~ (t.

PAGE 99 Ch'f. DATE TINE(GHT) LAT LONG BL INTEH t(AG SH H DIS 0 S L 0 C h T I. 0 H A H D C 0 H tl E N T S HO. DAY+(0-YEAR HRWIH-SEC ((%) (KH) (KH)

ORIGINAL DATA SOURCE ~ EPB 1624 6 J(JH 1976 02. '"31,0 49.150H 127.830M 3 a 40HL 18 Ch DEPTH RESTRAINED ~

6 STATIONS USED IH SOLUTIOH ~

. ORIGIHAL DATA SOURCE c<<EPD 1625 15 JUH 1976 14:b7 31.8 44.638H 114.574M 3o70H' HQ HYPOCEHTER SOL(ffIOH DEPT}l REBTRAIHED BY GEOPHYSXCIST 14 p AND/QR p'RRIvALs UGED IN HYpocEHTER sol UTIQH ORIGINAL DATA BQUfiCE rc GS LOCAL HAGNITUDE 3 70 SCALE HL

~ hUTI(ORITY= GS

' 1626 26 JUH 1976 11 12 ?5.3 43.760k 127.752M 4.60HB 33 0 HO HYPOCE}(TER SOI UTIOH IIELD AT 33 I04 (HORHAL DEPTH) 14 P AHD/OR P'RRIVALS lL'JED IH HYPOCEHTER SOLUTION NOAA FEELS THIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE GS 1627 1 JUL 1976 19 06 19.0 49.540H 127.330M 3 10HL 18 Ch DEPTH REB'IRAIHEDo 0

e

-? 5 81'ATIONS USFD XH SQI.UTXOH.

ORIGI}I~J DhTA SOURCE r- EPD 1628 23 JUL 1976 17 59 36.8 .46.079}I 118.745M 3,05HC 3 1629'6 JUL 1976 10:45 28.2 45.022k 114.179M V 4.30(IB 10 HO REPORTED FEl T IHFORHATION e HYPQCE}(TER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST 51 P AHI<</OR P'RRIVALS USED Ik HYPOCENTER SOLUTIOH ORIGINAL DATA BOIJRCE <<<<GS LOCO HAGNXTUDE = 4.40 SCN E rHI AUTHORITY= GS 1630 30 JUL 1976 14L'll 03.7 49.079k 127.923M 4 30HB

~ 10 4 HO HYPOCENTER SOLUTIO}I DEPTH RESTRAXHED DY GEOPHYSICIST 34 P hHD/OR P'RRXVf<<LS USFD IH HYPOCEHTER SOLUTIOH HOhA FEELS THXS IS h LEBB RELIABLE SOLUTIOH ORIGItIAL DATA SOURCE -- GS 1631 12 AIJG 1976 06-28=60.0 50o640H 12? 3<<050M III 3eGOHL 18 CA P<<EPOIY(ED FELT IHFORHATIOH DEPTH RESTRAX}IED.

ln BTATXO}IS USED XN <<a)LUTXQH.

ORIGINAL DATA SOURCE ~ EPB 1632 28 hUG 1976 22 14" 43.5 43.580k 127.134M 4,70HB 33 4 HO }IYPOCEH1ER SOLUTIOH HELD hT 33 KH (HORHAL DEPTH>

23 P A}ID/OR P'RRIVALS USED IH HYPOCE}ITER SOLUTIOH HOAR FEELS FHIS IS A LEB( RELIABLE SOLUTION ORIGIHAL DATA SOURCE = GS HAGtlITUDE 3.7 USING HOAh A'VERAGE HS (IASPEI FQRH(JLA>

1633 30 hUG 1976 16!34 01.5 47.649k 120.177M 3.05HC 3 1634 1 SEP 1976 22 45 01 0~ 52.890k llhs100M 3.00kr 5 CA DEP'I'H REBTRAI HED.

7 STATIONS (ISED IN SOLUTIOH.

ORIGINAL DATA S(3(JRCE r EPD 16M 2 SEP 1'976 13 36 11 ~ Q 48.205k 1?'?.761M V 4.30HB 24 M HO REPORTED FELT IHF(3RHATION 33 P AND/OR P'RRIVALS l)SED IN HYPOCE}ffER SOLUTION MOODMhf(XI-CLYDE CON QJLTAÃf8 23 APR 81 I

0

?

'cP} <<

nc,<<<<<<. e c<<n

0 MOODMARD-CLYDE CORQJLTA>fl S 23 APR ~

PAGE 100 CAT ~ DATE TINE(GNT) LAT LOHG SL INTER NAG SN H DIS I> 8 LOCATION AHD CONNEHTS RO. DAY-1$-YEAR HRWIH-SEC (NN> (KN)(KN)

ORIGIHAL DATA SOURCE ~ GS PARANETERS OF EPICDfrER FRON UNIV, MASIIIN(nON, SEC;rrLE NAGHITUDF(FRACTIONAL HOTATIOH,AVE> 4.00, AUTHORITY- GS LOCJJ IM'J NITUDE - 4.00 SCALE CL Atff)M)RXTY= SEA 1636 5 SEF'976 07 13-55.8 43.XU)R 126.028M 3oBONB 15 T RO )IYPOCEhtTER SOLUTIOH DEPTH f'EBTRAIHED BY GEOPNYBXI.TBT 8 P A)ID/OR P'RRXVALS USED XH HYPOCENTER SOLUTF>>'OAA FEELS TIIIB IS A LESS REI XABLE SOLIJTIt)H ORIGINAL DATA SOURCE = GS 1637 8 SEP 1976 08 21 01.6 47t382H 123s084M VI 4. 60NB 48 M HO REPORTED DANAGE 82 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGINAL DATA Snt)RCE GS PAIIANETEfK OF EPICEHI'ER FRON UHXV. MASHIFIGTOH SEATTLE NJJ))IITUDE = 3.9 USING NOAA AVERAGE NS (XASPEI FORNULA)

NAGHITUDE(FRACTIONAL HOTAl'ION AVE)=4 80 AUTHORITY- GS

~

LOCAL NAGHITUDE ~ 4.50 SCJJ E ~CL AIITIIORXTY.- SEA 1638 30 SEP=1976 17 36.02.6 43 '52R 126.965'M 5.20NB 33 4 RO HYPOCEHTER SOLUTIOH t(ELD AT 33 KN (NOIJ'IAI DEPTH>

18 P AHD/Ott P'RRIVALS IISED IH HYPOCENTER SOLUTION NOAA FEELS T)IIS IS A LESS RELIABLE SOLUTIOH ORIGXFIAL DATA SOIJRCE ~ GS 163'9 4 OCT 1976 08 24 56 ~ 1 44,31BR 115.016M 3.20H' 4 HI) HYPI)CENTER SOLUTIOH DEPTH RESTRAINED BY GEOPHYBXCIST 8 P ARD/OR P'RRIVhLS USED IH HYPOCEFITER SOLUTIOH HOAA FEELS ll)IS IS h LV~ RELIABLE SOLIJTIOH ORIGFRAL DATA SOURCE GS LOCAL NAGRITUDE . 3. 20 SCi'lZ ->>NL AIJFHORITY=- ERD 1640 14 OCT 1976 21:39" 17.7 4b.SPAN 122.343M 10H'0 M RO REF'ORTED FELT INFORFIATION 15 P AND/OR P'RRIVALS USED IH HYF'OCEHTER SOLUTION ORIGINAL DATA SOURCE t-- GS PAI(ANE'IERS OF EPICBITER FIION UNIV. MASIIIFIGTOH SEATTLE LOCJ'AGFIITUDE ~ 3. 10 SCALE =NL AU I>)ORITY~ GS 1641 15 OCT 1976 15 33 30.0 52.200N 115a230M 3. 20N'f 5 CA DEPT)I RESTRAIHED.

6 STATIONS USED IH SOLUTION.

ORIGIHAL DATA SOURCE = EPB

~ 1642 1 ROV 1976 22~% 51.1 44,263R 114.973M 3.70H' HO REPOI TED FELT IRFORNATIOH HYPOCEtffER SOLUl'IOH DOTH RESl'RAINED BY GEOPHYSICIST 7 P AHD/OR P'RF(IVAI 8 USED XN IIYPOCEHTER SOLUTION ORIGII IAL DAl'A SOU)'CE GS LOCAL NAGNXTUDE 3. 70 SCAJ.E =NL Atfl>IORXTY= ERD 1643 17 HOV 1976 23 24-32.0 4'9.440R 126.150M 4. 30NL 18 Ch DFPTH RES'fRAIIIED.

14 STATIONS USED IH SOLUTION.

ORIGINAL DAI'A SOIJRCE .-- EPD 1644 2 DEC 1976 03 35 47.0 52.290N 115,450M 3a00IK 5 CA DEPTI I RESTRAINED.

9 3 Sl'ATIORS USED XH SOLUTIOH, ORIGINAL DArn SOURCE - EPB MOODMARD-CLYDE CONSIJLTANTS 23 APR 81 t ~ ~

gt

MOODMARD-CLYDE COHCULTAtlTS 23 APR

~ - 0

\ ~

PAGE 101 Chr. DATE TIHE(GHT), LONG SL Itf(EN HAG SH H DIB Q 8 LOCAT ION AHD COHHEHTS NO ~ DAY-HO-YEAR HRHRDI-SEC (HH) (KH) (IO()

1645 13 DEC 1976 08 47 29.4 47.643H 120.129M 3 10HC o 6 UM FELT 1646 19 DEC 1976 19.00 59,5 42.752N 125,603M 5 ~ ROHD 15 4 NO HYPOCEHTER SOLUTION DEPTII RESTRAIHED BY GEOPHYSICIST

'9 P AND/Oft P'RRIVALS USED IH HYPOCEHTER SOI UTION NOAA FH3 8 THIS IS A LESS RELIABI E SOI UTION ORIGINAL DATA SOURCE = GS 0 1647 23 DEC 1976 05 51:37.0 47.900H 1>&.100M 3 o 10HL 18 . CA DEPTH REBTRAIHED o 6 STATIOIIS USED IN SOLUTION.

ORIGII'NL DATA SOURCE . EPD 1648 ., 29 DEC 1'976 06 59 35.1 44 488N 115.819M

~ 3.60H' 0 NO flYPOCE)ffER SOLUTIOH DEPTtl REBTRAIttED BY GEOPHYSICIST 5 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH NOAA FEELS THIB IS A LESS RELIABLE SOLUTIOtl ORIGIHAL DATA SOllRCE ~ GS LOChL HAGHITUDE 3.60 SCN E =HL AUTHORITY ERD ~

1649 29 DEC 1976 08 03-43.'2 43.438H l>M.785M 5. 0(M(B 15 f. NO HYPOCEHTER SOLUTIOH DEPT)I FZSTRAIHED BY GEOPHYSICIST 18 P AND/OR P'RRIVALS U.'iiD IH HYPOCEHTER SOLUTIOH NOAA FEELS THIB IS h LESS RELIABLE SOI UTIOH

. ORIGIHAL DATA SOURCE = CiS 1650 5 Jhtt 1977 23-27 43.0 52.2RON 115.110M 3.90tff 5 CA DEPTH RESTRAIHED 8 STATIONS USED IH SOLUTION ~

OR IGIHAL DATA OURCE ~ EPB O-1651 6 JAH 1977 02 RR:02.0 52.270H 115.190M 3a70tff 5 CA DEPTH RESTRAIHED.

7 STATIONS USEI) IN SOLUTION.

ORIGINAL DATA SOLACE i= EPB 1652 27 J/ft 1977 07-47 29.2 46.939H 119.592(l 3e 18HC 1 1653 11 YiM 1977 22 50 11.4 45.895H 119.675M 3o12HC 1654 30 HLR 1977 17 42 01.0 49.010H 125.240M 3.10HL 18 CA DEPTH REiZfRAINED.

7 STATIONS USED IH SOLUTION.

ORIGIHAL DATA SOURCE i= EPD 1655 11 APR 1977 03~14 37.9 .42.526N 126.219M 4.70IID 15 4 N) HYPOCENTER SOLUTION DEPTII RESTRAIIKD BY GEOPHYBICISf 5 P AHD/Of< P'RRIVALS USED IN HYPOCENTER SOLUTIOH NOAA FEELS THIS IS h LESS RELIABLE SOLUTIOH ORIGIttAL DATA SOUfKE ~ GS 1656 23 APR 1977 17 54 43.4 42.002H 126.737M 4.80HD 15 8 HO HYPOCEIITER SOLUTIOH DEPTII RESTRAINED BY GEOPHYSICIST

.'9 P AND/OR P'RRIVALS llSED IH HYPOCEHTER SOLUTIOH ttOAA FEELS TIIIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE ~ GS IW7 16 HAY 1977 06 34 54.6 44 416N 114,420M

~ 3.10N 5 e HO IIYPOCEtITER SOLUTIOII DEPrtt RESTRAIttED BY GEOPHYSICIST 10 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH NOAA FEELS TIIIS IS A l.ESS RELIABLF- SOLUTIOH MOODMARD-CLYDE COHSULTAttTS 23 APR 81 W' P/g$

~

PA(IF 10:>

MOODMARD-CI YDE COH"-UI TAHTS 33 rrR 'i i Q

~ ~

rr r

PAGE 102 CAT. DATE TIHE(G)ff ) LAT LONG SL IHTEH HAG SH H DIS 0 S LOCATION AND COHHEHT5 HO. DAY-Ho-YEAR HR-HIN-SEC (HH) (KH)(KH)

ORIGINAL DATA SOURCE 33 GS LOCAL HAGNI1UDE 33 3.10 SCALE 3HL A'IIIHORITY3 ERD 1658 26 HAY 1977 06 49-51.0 51 150H 124 430M

~ ~ 3.50HI 18 CA DEPTH RES rRAIHED.

8 STATIOHS USED IH SOLUTIOH.

ORIGINAL DATA SOURCE ~ EPB 165'9 12 JUH 1977 02:57 06.0 51.540H 118.460M -

3.60HL 18 Ch DEP'fH RESTRAINED.

9 STATIONS USED IH SOLUTION.

3 ORIGINAL DATA SOURCE EPB j O 1660 17 JIJH 1977 06" 16 01.8 47.736H 1~M.712M V 3.30H'5 M Ho REPORTED FELT IHFORHA'I ION 19 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOUJTIOH ORIGINA DATA SOURCE 33 GS PARAHEKERS OF EPICENTER FROH UNIV. MASHINGTOHy SEATTLE LOCAL HAGNITUDE 3 30 SChl E =HL

~ AUTHORITY GS 1661 23 JUH 1977 >M-26 47.0 49.090H 123.380M 3.50HL 24 CA 7 STATIONS USED IH SOLIffIOH, ORIGINAI DATA SOURCE EPB

'9 1662 10 JIJL 1977 07 19:30.3 48.532H 1>> 447M

~ 4,30HD 11 M HO REPORTED FEI T I)IFORHATIOH 14 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DATh SOURCE ~ GS PARAHETERS OF EPICEHI'ER FROH UNIV. MASHIHGTOH SEATTLE LOCAL tlAGHITUDE r 3.40 SCAN ~HL AUTHORITY~ GS O 1663 13 JUL 1977 07 15 06.2 47.060H 120.952M FEL'f O 16 JUL 1977 19 "06 21.3 43.702H 127 602M 4.6OHB L5 e NO HYPOCE)irTER SOLUTIOH DEPTII RESTRAINED BY GEOPHYSICIST 9

1664 ~

25 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH 6 NOAA FEELS flIIS IS A LESS RELIABI E SOLlJTIOH ORIGIHAL DATA SOURCE GS 1665 24 JUL 1977 09 07 29ro 52.180H 115.190M 3. 50I4l' CA DEPTH RESTRAINED.

7 STATIONS USED IN SOLUTIOH.

ORIGINAL DhTA SOURCE .. EPB 1666 24 JUL 1977 17 49 56.0 52.180H 115.220M 3.40Yf 5 CA DEPTH RESTRAINED.

O 6 STATIONS USED IN SOLUTIOH.

ORIGINAL DATA SOURCE .. EPB 1667 25 JUL 1977 21 04-03.8 48,071H 122.852M 3.20H'5 M Ho REPOIiIED FEL'f IHFORHATIOH 14 P AHD/OR P'RRIVALS USFD IH HYPOCENTER SOLUTIOH ORIGI)uJ DATh SOURCE ~ GS PARAHElZRS OF EPICENTER FROH UNIV. MASHINGTOHg SEATTLE LOCAL HAGHI1UDE ~

3. 20 SCALE HL AUTHORITY GS 1668 27 JUL 1977 02 17"42eo '52 '30N 115r260M 3.20NT 5 CA DEPT)I RE'.-rRAIHED.

8 STATIONS USED IH SOLUTIOH.

ORIGINAL DATA SOURCE -- EPB O

,I 9

MOODMARD-CLYDE CONSUL'rh)frS 23 APR 81

~ ~

3 't.T r

t ac WOODMARD-Cf YDF COHSIJLTAtfrS 23 APR ~ 0 A

'i ~ ~

PAGE 103 CAT. DATE TINE(GHT) LAT LOHG SL INTEH HAG SH H DIS 0 S LOCATION AHD COHHEHTS tlO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (f(H) ~

1669 13 AUG 1977 10 13 07.6 44.654H 114 614M 3.30H' 8 HO HYPOCEtfTER SOLUTIOH DEPTll RFBTRAIHED BY GEOPHYSICIST

~

14 P AHD/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH '8 tK4'fA FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGIHAL DATA SOUf'CE GS LOCAL HACiHITUDE 3.30 SCALE t9 AUTHORITY= ERD 6 1670 14 AlJG 197) 21t43-36.0 52.280)i 115. 190M 3 '0HT 5 CA'EPTH RESTRAINED, 11 STATIONS lJSED IH SOLUTIOH.

ORIGIHAL DATA SOURCE ~ EPD

' . 1671 25 AUG 1'977 12t07 11.5 44.642N 114.59'7M 3. 10H' 0 HO kfYPOCENTER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST 5 P AHD/OR P'RRIVALS lJBED IH HYPOCENTER SOLUTIOH FEELS THIS IS h LESS RELIABLE SOLUTI()H 'OAh ORIOiIHAL DATA SOUf<CE GS LOCAL HACiHITlfliE - 3. 10 SCALE =Hf AUTHORITY ~ ERIJ 1672 27 AUG 1977 11~51-33.0 52.190H 115.200M 3. 10tff 5 CA DEPTH RESTRAINED.

6 STATIONS USED IH SOLUTIOH ~

ORIGINAL Dhlh SOURCE EPB 1673 29 AUG 1977 12 56 23.4 44.658H 114.522M 3,20HB 5 HO HYPOCE)(TER SOLlJTIOH DEPTH RESTRAIHED BY GEOPHYSICIST 19 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGINAL DATA SOURCE ~ GS LOCAL HAGHITUDE 4.30 . CALE =HL AUTHORITY GS O 1674 9 OCT 1977 16!42 39.0 53 '50H 118o290W 4 40l'ff

~ 18 CA DEPT)I RESTRAINED.

14 Sl'ATIOHS lJBED IN S)OLUTIOH ~

ORIGINAL DATA SOURCE ~ EPB 1675 11 OCT 1977 03"50 49.2 43.869H 127.948M 4. BOHB 15 4 HO HYPOCEHTER SOLlJTIOH DEPTH RESTRAIttED BY GEOPHYSICIST 31 P hHD/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH HOAA FEELS THIS IS A LE~8 RELIABLE SOLUTION ORIGINAL DATh SOURCE = GS 1676 14 OCT 1977 02 53.32 9

~ 48.522)l 122. 197lJ 3. OOHL 1677 26 OCT 1977 00 34 00 ' 52 '70H 115 '40M 3,50HT 5 Ch DEP I'l RESTRhIHED.

8 STATIONS USED IH SiOLUTIOH.

ORIGIHAL DATA SOURCE i EPD 0 1678 20 HOV 1977 00t22i39 1 43.470N 126.895M 4.70HB 15 NO tlYPOCEhTER SOL(JTIOH DEPTH RESTRAIHED BY. GEOPHYSICIST 28 P hHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAL DhTA SOURCE I- GS 1679 27 HOV 1'977 09 25 55.1 44.582)l 116.273M VI 4.20HD 5 HO REPORTED DAHAGE HYPOCENTER SOLUl'IOtl DEPTH RESTRAINED BY GEOPHYSICIST 30 P AHD/OR P'RRIVALS lJSED IN JJYPOCE)JTER SOLUTIOtl ORIGINAL 9!Yfh SOURCE -" GS LOCAL tfAGHITUDE ~ 4.50 SCFLX HL AUTHORITY GS MOODMARD-CLYDE COHSUI TAHTS 23 APR 81 PARF 104

MOODWARD-CLYDE CONSULTANTS 23 APR 8 PAGE 104 CAT. DATE TIIJE(GHT) LA'f LONG SL INTEN IVY) SIC H DIS Q 8 LOCATION AND COHHENTS tlo DAY-HO-YEAR HR-HIN-SEC (Htt) (KH) (KH)

'3 ~

1680 4 JAN 1978 16" 15 04./ 43.277N 126.523M 4.50tiD 15 4 NO POSSIBLE TSUhPJlI G&KRATED BY EJ'Ãf)K)UA!(E POSSIBLE SEICHE ASSOCIATED MITH EARTHQUAKE HYPOCENTER SOLUTIOtt DEPTH RESTRAINED BY GEOP))YSICIST 34 P h)JD/OR P'RRIVAI.S USED IN HYPOCENTER SOLUTION NOAA FEELS THIS IS A LESS RELIABLE S(XLUTIOIJ ORIGII'!AL DATh SOURCE = GS 1681 25 JAN 1/78 01 "09"20.8 47.891N 120.108lJ 3. 31)(C 1 1682 1 FEB 1978 05 07 26.6 43.816N 127s979M 4.7OHB 15 4 NO POSSIBLE TSU)VXI GENERATED BY EARTHQUAKE POSSIBLE SEICHE ASSOCIATED lJXTH EARTHQUAKE HYPOCEt'TER SOLUTION DEPTH RESTRAINED BY GEOPHYSICIST 18 P hND/OR P'RRIVhLS USED IH HYPOCENTER SOLUTION NOAA FEELS THIS IS A LESS RELIABLE SOl.UTION ORIGINAL DATA SOURCE =. GS 1683 6 FEB 1978 09 55 48,6 43.530N 126 864M

~ 4.00t19 15 4 NO POSSIBLE TSl)NAHI GE)"FRATED BY EART))QUA!(E POSSIBLE SEICHE ASSOCIh'I'ED WITH EARTI(QUAKE HYPOCEI'ffER SOLUTIO)J DEPTH RESTRAINED BY GEOPHYSICIST 20 P AND/OR P'RRIVALS USED IN HYPOCFNTER SOLUTIOH NOAA FEELS TllIS IS A LESS RELIABLE SOLUTION ORIGINAL DATA SOURCE = GS 1684 10 FEB 1978 14 0'9 16 1 F 47.804H 123.246M F 08 1685 13 FEB 1978 17"35 36.1 45.072H 114.516M 3 NO POSSIBLE 'fSU)JAHI GEk~RA'fED BY EAR'f))QUfJ(E Q POSSIBLE SFICHE ASSOCIATFD MXTH EARTt(QU'NE HYPOCEtffER COLUTIOtl DEPT)l RESTRAIHFD BY GEOPHYSICIST

'0N'686 / P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH 6 ORXGX)tn DATA SOURCE ~ GS LOCAL HAGNITUDE ~ 3.30 SCALE:=HL AUTHORITY= GS 6

16 FED 1978 12 00>>"21.2 42 685N 125o890M

~ 5.00MB 15 4 NO POSSIBLE TS(JNAHI GEHERATED BY EART))QUAKE POSSIPLE SEICHE ASSOCIATED MXTH EARTHQUAKE HYPOCENTER SOLlffION DEP'IH RESTRAINED BY GEOPHYSXCIST e 50 P AND/OR P'RRIVALS t.lSFJ) XN HYPOCENTER SOLUTION NOAA FEEI.S THIS IS A LESS RELIABLE SOLUTIOH ORIGIt!AL DATA SOURCE ~ GS 9 HAGNXTUDE 4.5 USING NOAA AVERAGE HS (IAS)WX FORtlULA),

LOCAL HAGNITUDE 4. 80 SCALE '".HL AUTHORITY= BRK e

1687 22 FEB 1978 00~37:00.0 44.605N 115.O70M 3. 90HB 5 NO POSSIBLE TS()ttAHI GENERATED BY EART))QUAKE POSSIBLE SEIC)lE ASSOCIATED lJITH FKTIRQ(LVE HYPOCENTER SOLUTIOH DEPT)l RES1RAI)JED BY GEOPHYSICIST 14 P hND/OR P'RRIVALS USED IN HYPOCEtlfER SOLUTION ORIGIttfJ DATA SO~i .= GS LOCAL HAGNITUDE 3. 80 SChLE .HL AUTHORITY GS 1688 24 FEB 1978 06-"58-37.3 43.031N 126.342M 4,50HB 15 4 NO POSSIBLE 'fSUHAHI GEtJERA'IED BY EARTtlQUAKE POSSIBLE SEXCHE ASSOCI!YTED MXTH EARA(QUAKE HYPOCENTER SOLUTIOH DEPTH RES'fRAINED BY GEOPHYSICIST 0 6 MOODMJJ)D-CLYDE CONSULTANTS 23 APR 81 9 )

WOODMARD-CLYDE COHQJLTANTS RPR I.

0 r.

6 PAGE 105 CAT. DATE TINE(Mf) . LAT LONG SL INTEH HAG SH H DIS Q 5 LOCATION AND COHHENTS HO. DAY+)0-YEAR HR-HIN-SEC (HH) (KH)(KH) 36 P AND/OR P'RRIVALS USED IN HYPOCE))TER SOLUTIOH

)IOJ'A FEELS THIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE R GS MAGNITUDE RR 4.2 USING NOAA AVERAGE HS (IASPEI FORHULA)

I 1689 5 le( 1978 18 13 35.9 48.057N 1~.998M IV . 4,00HB 57 W NO PO IDLE TSU)IAHI GEtKRATED BY EART)IQUAKE POSSIBLE SEICIIE ASSOCIATED MITH EARTHQLIKE REPOR1ED FELT IHFORHATIOH 18 P hND/OR P'RRIVAI B USED IN HYPOCEHTER SOLUTIOH ORIGINAL DAI'A SOURCE = GS PARAHETERS OF EPICE))TER FROH UNIV. MASHINGTONy SEATTLE LOCAL HAGNITUDE R 3 30 SCAJ.E ~HL

~ AlJJHORITY= GB 1690 11 HAR 1978 15-52 11.2 47.416N 122.710M VI 4R30HD M NO POS. IDLE TSUNAHI GENERA'fED DY EARTHQUJJ(E,,

O POSSIBLE SEICHE ASSOCIATED MZTH EARTHQUAKE 8 RE)ORTED DAHAGE pc 52 P AND/OR P'RRIVALS USED XN HYPOCE))TER SOLUTION ORIGI)IAL DArn Boi)RCE . GB ISOSEIBIIAL H.!P PUBLISHED BY USE PARA)IETERB OF EPICENTER FROH UNIV~ MASHI)ICRTOHR SEATTLE HAGNITUDE = 3,2 USING tlOAA AVERAGE HS (IASPEI FORHULA)

LOCAL HAGHI1UDE 4.80 SC('J.E )IL AIJfHORITY ~ GS 1691 19 HAR 1978 02133 47,8 44,496N 114,418M NO POSSIBI.E TSUI)AHI GENERAlED BY EAR'IHQUAKE POSSIBLE SEICIIE ASSOCIATED IJIlll EAR)'HQUAKE HYPOCF)f)XR BOI UTION DEP'ltl RES1RAIHED DY GEOPHYSICIST 3.20N'.31HC 9 P AND/Oll P'RRIVALS USED IH HYPUCEtflER SOLUTION ORIGI)IAL DAIA BouRCE GS LOCAL HAGNITUDF 3.20 SCALE 'R)IL hUTHORZTY GS 1692 22 MAR 1978 03 08 59.6 . 48.090H 119 '91M 12 ~

O 1693 22 HAR 1978 14-30 15.7 44.293N 115.496M 4.10H' 'NO PO. BIBLE TSUNAHI GENERATED BY EART)IQUfÃE POSSIBLE SEICHE ASSOCIATED MITH DKTHQUAKE HYPOCE)ffER SOLUTIOH DEPT)l RFSTRAINED BY GEOPHYSICIST 20 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION ORIGINAL DA'I'A SOURCE ~ GS LOCAL HAGHITUDE RR 4.10 SCALE ~HL AUTHORITY~ GS 1694 29 HAR 1978 09:58-50.0 50.110H 127.620M 3. 10HL 18 CA DEPTH RES fRAI)IED.

7 Bl'ATIONS USED IH BOLUTZOH.

ORIGINAL DATA SOURCE . EPD 1695 29 )IAR 1978 12-16-38.4 48.204H 122.762IJ ZV 2.70N'4 . M NO POSSIBLE TSU)IAHI GE)KRATED DY EARTHQUAKE POSSIBLE SEICHE ASSOCIATED IJZTH EARTHQIJAKE REPORTED FELT I))FOR))ATION 16 P AND/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH ORIGINAL DATA SOI)~i RR GS PARAHETFXS OF EPICE)ITER FROH IJHIV. MASHIHGTOHR SEATTLE LOCAL HAGHI'lllDE 2.70 SCALE =HL

~ AIJfHORITY" GS MOODMAl%)-CLYDE CONQ3LTA)f)S 23 APR 81

e MOODMARD-CLYDE COHSUI TAHTS 3 APR t~

~ ss

)

~

PAGE 106 CAT. DATE TINE(GHT) LAT LONG SL ItffEH HAG SH H DIS Q S LOCATION AHD COHHEHTS NO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH)

Q 1696 31 HAR 1978 08 03:00,2 47.417H 1 i2.715M VX 4.20H'3 M HO POSSIX'LE TSUHNOI GENERATED BY EARll(QUAKE POSSIBLE SEICHE ASSOCIATED MITH EARTHQUAKE REPORTED DAI(AGE 24 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH ORIGINAL DATh SOURCE GG ISOSEX. 1(AL HAP PUBLISHED BY USE PARAHElERS OF F3 ICEHTER FROH UHIV, MASHIHG'fOH~ SEATTLE LOCAL HAGHITUDE ~ 4.20 SCALE =HL hUTHORITY-> GS 1697 3 APR 1978 10-10 08.1 44.051N 116,356M V 3s20H' HO POSSIBLE TSUHCAI GENERATED BY EARTIIQUCSE POSSIBLE GEICIIE ASSOCIATED WITH EARTHQll)KE REPORlED FELT IHFORl(h'TIOH HYPOCEHl'ER SOLUlIOH DEPTH RESTRAINED BY GEOPHYSICIST 9 P AHD/OR P'LSRIVALS USED IH HYPOCENTER SOLUTIOH ORIGIHAI D')TA SOURCE ~ GG LOCAL HAGNITUDE = 3.'io SCWXZ HL AUTHORITY= GS 1698 15 APR 1978 15 29 23.1 42.762N 126,672M 4 '0HB 15 4 HO POSSIBLE TSUHAHI GEHERATED BY EART)(QUAKE POSSIBLE SEICHE ASSOCIATED WITH EARlHQUAKE HYPOCENTER SOI.UTIOH DEPTH RESTRAINED BY GEOPHYSICIST 13 P AND/OR P'RRIVE USED IH HYPOCEHTER SOLUTIOH HOAA FEFLS THIS IS A LESS RELIABLE SOLUTIOH ORIGXHAL DATA SOURCE ~ GS 1699 16 APR 1978 19."451'lb.9 47.752N 120,233M 3.30HC 1 O

1700 23 FZA 1978 20" 10:02,4 44,549H 127.245M 3.90HB 15 4 NO POSSIBLE T, UNAHX GiEHFRAlED BY EARTHQUAKE POSSIBLE SEICHE ASSOCIATED MXTH EARTHQU()KE HYPOCE1CTER SOLUTION DEPT)I RESTRAINED BY GEOPHYSICIST 7 P AHD/OR P'RRIVALS USED XH HYPOCEHTER SOLUTIOH HOAA FEELS THIS Is h LESS r'ELXABLE SOLUTION ORIGXHAL DATA SOURCE - GS 1/01 26 APR 1978 07-16-45.3 43.915H 114.115M 3o ION' 0 HO POSSIBLE TSITHAHI GENERATED BY EAR'THQUN(E Q PUSS I)3LE SEICHE ASSOCIATED MITH EARll(QUAKE HYPOcaCIER SOLUTION DEPTH RE. rRAI>~ Bv ( EOPHYSICIGT 6 P AHD/OR P'RRIVALS lfSED IH HYPOCENTER SOLUTIOH NOAh FEELS THIS IS h LESS RELIABLE SOI.UTIOH ORIGINAL DATA SOURCE -- GG LOCAL HA()NITUDE 3. 10 SCALE -.HL AUTHORITY> GS 1702 2 HAY 1978 21204-06.9 46.512H 118.618M 3,05HC 3 r GGGIBLE En LGGIDH.

1/03 14 HAY 1978 2:? 37 04.1 52, 661H 118 704M

~ h. 801(D 10 HO POSSIBLF TGU)(hill GEHERATED BY EARTHQUAKE POSSIBLE SEICHE ASSOCIATEE WITH EARTHQUAKE HYPOCEHTFR SOLUTION DEPTH RESTRAINED BY GEOPHYSICIST 82 P hND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH

~

'! ORIGINAL DATh SOITRCE ~

GS HAGHITUDE 4.4 USING HOAA AVERAGE HS (IASPEI FORHULA) 0 MOODMARD-CLVDE CONSULTANTS 23 APR 81 is'% 1!tVg alt

~

Phi'.F

0 WOODMARD-CLYDE COHSlJLTANTS 23 APR B~I 6

PAGE 107 CAT. DATE Tlt)E(GHT> LAT = LONG SL I)(TEN HAG Stl H DIS Q S LOCATXOH AHD COHHEHTS NO. DAY-HO-YEAR HR-HXH-SEC (HH > (KH)(KH>

1/04 25 HAY 1978 21-b3-44.0 50.200H 127.700M 3.30HL 18 CA DEPTH RESTRAI HED.

7 STATIONS USED IH SOLUTIOH.

ORIGIHAL DATA SOURCE EPD 1705 2 JUH 1978 20 41 43.7 Soo259H 127 688M

~ V 5.10HD 21 NO POSSIBLE TSUNAHI OK%RATED BY EARTHQUAKF POSSIBLE SEICHE ASSOCIATED MXTH EARTHQUAKE REPORTED FELT IHFORHhTIOH 183 P AHD/OR P'RRIVALS USED XH HYPOCEt)TER SOLUTIOH ORIGXtnl Dhrh SOIJRCE .= GS HAGHXTIJI)E = 5.2 USING Nohh AVERnGE HS (I*SPEX FORHULA>

6 1706 3 JUN 1978 11 54 39.1 50.305H 127.618M 4o60HB 30 HO POSSI!XZ TSU)JAHI GEHERAlED BY EAR1'HQUAKE POSSIBLE SEICHE ASSOCIATED WITH EARTHQUAKE REPORTED FEL'r It)FOR))ATIOH 58 P AHD/OR P'RRIVALS USED IH HYPOCEHI'ER SOLUTIOH ORIGIHAL DATA SOURCE ~ GS HAGHITUDE ~ 4.3 USING HOAA AVERAGE HS (IASPEI FORMULA>

1707 3 JlJH 1978 12-54-26.0 50.200H 127a750M 3. OOHL 18 Ch DEP TH RES)RAINED.

7 STATIOHS USED IH SOLUTION.

ORIGINAL DATA SOURCE ~ EPB 1708 11 JUH 1978 02I43"-b> 0~ 46.841N 120.9~a 3. 06HC 1709 12 Jl)H 1978 10 52 "23 0 50,220H 127.640M 3o 90m 18 Ch DEPTH RESTRhlt)ED.

6

~

8 STATIONS USED IH SOLlJTION ~

ORIGINAL DATA SOUFCE ~ EPD 1710 13 JUH 1978 11 39"30.0 50.230H 127.530M 3. 60HL 18 Ch DEPTH RESTRhIHED.

8 STATIONS USED XH SOWTXON.

ORIGIIIAL DATA SOURCE ~ EPB 1711 18 JUH 1978 01 03 45o3 42.699N 126o291M 4 o 30HB 15 4 HO POSSIBLE TSUNAMI GE>IERATED BY EARTHQUN(E POSSIBLE SEICHE ASSOCIA'TED WITH EARTHQUAKE HYPOCENTER SOLlffIOH DEP'TH RESTRAIt(ED BY GEOPHYSICIST 13 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH HOAA FEELS THIS IS h LESS RELIABLE SOLUTION ORIGINAL DATA SOURCE ~ GS 1712 2O JUN 1978 14=40:2O.B 47.546N I~W.7 OM 3.31 So UM 1713 27 JUH 1978 02.19 00.3 46.937H 121.137M 3 '3 3 UM 1714 9 JUL 1978 23 50-05.5 42.537H 126.628M 4 OOHB

~ 15 8 HO POSSIBLE TSUNAHI GE)IERATED BY EARTHQIJ(J(E POSSIBLE SEIC)TE ASSOCIATED IJITH EARTHQUAKE HYPOCEtffER SOLUTION DEPTH RES1RAIHED BY GEOPHYSICIST 10 P AtlD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH tlohh FEELS THIS IS A LESS RELIABl.E SOLJTIOH ORIGINAL DATA SO)JRCE = GS WOODWIND-CLYDE CONS)JLTAHTS 23 APR 81 PAGF IOB

MOODMF'JID-CLYDE COh<<SIJLTAtff0 23 APR 8~,

p PAGE 100 CAT. DATE Tl)K(GNT> Lhl I.OHG SL -IHIFJI NAG SN tl DIG a 8 LOCATION AHD COMMENTS NO. DAY-NO-YEAR HR-NIH-GEC (NM) (KN)(KN)

.J 1715 10 JUL 1970 22 16 10<<0 52.200H 115<<300M 3.30HT 5 CA DEPTH RESTRAINED.

5 STATIONS USED IH GOLUTIOH, ORIGINAL DATh SOURCE .. EPD 1716 1'9 JUL 1978 04:17:30.6 45,007H 114.416M 3.70H' HO POSSIBLE TSUNAMI GE)IERATED BY EARTHQUAKE POSSIBLE SEICHE ASSOCIATED MITH EhRTHQUAKE HYPOCEtffER BOLU'fION DEPT)I REBTRAIHED BY GEOPHYSICIST 5 I htID/OR P'mVALS USED Itf HYPOCEtfrER SOLUTIO)I HOAA FEELS THIS IS h LESS RELIABLE SOLUTIOH ORIGINAL DATh SOUIICE GB MAGNITUDE(FRACTIOHAI NOTATION AVE) .3.70 Afff)IORITY-NSO LOCAL NADtIITUDE = 3.60 <<SCALE:NL AUTHORITY GS 9 1717 25 JUL 1978 23 30 S0.9 50.303H 127,577M V 5,30MB 11 HO POSSIBLE 'IBUKANI DE)IERATED BY EAF(THQIJAKE POSSIBLE GEICHE ASSOCIATED MITH EARllIQIlIKE REPORTED FELT IHFORtfhTIOH 161 P h)ID/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ORIGD'"J Dhfh SOURCE =- GS NACiHITUDE = 5.1 USING HOhA AVERAGE NS (IASPEI FORMULA)

LOCAL MAGNITUDE - S.60 SCAIK =NL AISIHORITY OTT 1718 26 JUL 1970 06 09 40.0 SO ~ 210H 127<<930M 3. 00NL 10 CA DEP FH RESTRAINED ~

6 STATIONS USED IH SOLUTIOH.

ORIGIt(AL DATA SOURCE EPB 1719 3 AUG 1970 10"13"M.O S2.060H 115.320IJ 3. OONI 5 CA DEPOI REBTRAltIED.

4 GTATIOHS USED IN SOLUTIOH.

ORIGIHAL DATA SOURCE ~ EPD 1720 15 AUG 1970 01ti1 bi.0 52 '20H 115.390M 3.40NT 5. CA DEPTH RESTRAI)KD.

0 Sl'ATIOHS USED IN SOLUTIOH.

ORIGIHAL DATA SOURCF EPB 1721 15 AUG 1978 06 58-52 0~ 52 190H 115.340M

~ 3<<10tfr 5 CA DEPTH REFFRAIHED.

0 7'STATIONS USED IH SOI UTIOH.

ORIGINI'ATA SOURCE ~ EPD 1722 19 AUG 1'970 01:51 19.0 40.629M 123,550M V 4. 30MB 32 POSSIBLE TBUHANI GE)I<<GRATED BY EARTHQUAKE POSSIBLE SEICHE ASSOCIATED MITH EARTHQUAKE REPORTED FELT IHFORNh'f IOH 11 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH OFiIDIHAJ DATA SONXE <<-. GS PAIL<<INE'FERS OI= EI~ICEtfl'ER FROM CONN. EHERG. ATOM. PARIS LOCAL MAGNITUDE i= 3.50 SCh<<LE =NL AUTHORITY= OTT 1WM 23 AUG 1978 10t37 10<<5 40.358tf 123.223M 3. 60 21 UM 1/24 20 AUG 1970 02117'11 <<3 47 623H 122 958M

~ 3. 15 47 . UM 1725 10 OCT 1970 12 04 27.9 47 900H 11'9.682M

~ 3. 07NI: 2 UM MOODMARD-CLYDE COh<<GULTAHTS 23 APR 81

MOODMJRD-CLYDE CONSULTANTS 23 APR 8 PAGE 109 CAT. DATE TINE(GH'f) LAT ,

LONG SL INTEN HAG SH H DXS Q 8 LOCATIOH AHD COHHEHTS NO. DAY-HO-YEAR HAIN-SEC (HH) (KH) (KH) ~

1/26 10 OCT 1978 12.-04=37.0 47.3"GH 119.420M 3.2RMC 8 UM 1727 29 OC'f 1978 13-46".44.5 44.962H 114.271M V 4. 20HD 5 POSSIBLE TbUNAHI GENERATED BY EART)IQUAKE POSSIBLE SEICHE ASSOCIATED MITH EARTHQUAKE REPOR1ED FELT INFORHATIOH HYPOCENTER SOLUTION DEPTH RESTRAIHED BY GEOPHYSICIST 49 P AND/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTION ORZGINAL DATA SOURCE = GS HAGNITUDE(FFd'ZTIONAL NOThTION AVE) 4.00 AUTHORITY- GS 0

XAAM 29 OCT 1978 17 20 19.4 44.916H 114.346M 3.30H'O 5 -

4 NO LOCAL HAGHITlJDE 5. 00 SCALE -"HL POSSIBLE TSUNAHI GEHERATED BY EJRTHQUrXE hUTHORZTY HSO POSSIBLE SEICHE ASSOCIATED MZTH EARTIIQUAKE HYPOCENTER bOLU1'ION DEPTH RESTRAINED BY GEOPHYSICIST 11 P AHD/OR P'RRIVALS (ISED IN HYPOCENTER SOLUTIOH NOAA FEELS f)IIS IS A LESS RELIABLE SOLUTIOH ORIGINAL DATA SOURCE GS LOCAL HAGHITUDE =. 3.30 SCALE =HL AIJTHORITY= GS 9 1729 9 HOV 1978 13 08 28.0 50.730H 114.280M 3.20HL, 18 DEPTI I RESTRAI)KD.

5 STATIONS USED IH SOLUTIOPI.

ORIGIHAL Dhfh SOIJRCE ~ EPD 1730 20 HOV 1978 14 25 51.8 44 001H 11R.414M

~ IV , 3,70N' NO f OSSIBLE rSUNAHI rE). f ATED BY EARrHQUAm POSSIBLE SEICHF. ASSOCIATED llITH EARTHQUAKE REPORlED FELT INFORHATIOH HYPOCE)ITER SQLUTXON DEPTH RESTRAIHED BY GEOPHYSICIST 11 P AND/OR P'f(RIVALS USEI) IN HYPOCENTER SOLIJTZOH 50H'A ORIGIHAL DATA SOURCE ~ OS

~

HAGNITUDE(FRACTIONAL NO'fhTION AVE)M~ 70 AUT))ORITY-HSO LOCAL HAGNZTUDE = 3.20 SCALE AUTHORZTY= GS 1731 12 DEC 1978, 08 24 58.2 43.992N 114.410M 3 HO IOSSIX4 E 'fSUNA!II GE)fERATED BY EARTHQIJAKE POSSIBLE SEICHE A~CIATED MZTH EARTHQllhKE HYf'OCENTER SOLUTIOH DEPT)l REbTRAINED DY GEOPHYSICIST 11 P AND/OR P'RRXVALS llSED ZN HYPOCEHTER SOLUTION ORIGINAL DATA SOURCE ~

GS LOCAL HAGNITllDE 3 50 8('hLE '"HL AUTHORITY GS 1732 28 DEC 1978 12 18t58o3 R7.309)l 123 '63M 3.42 1733 31 DEC 1978 03-23 46.7 47.579H 121 849M

~ . VI RsOON! 20 M NO POSSIBLE TSU)IAHI GENERATED BY EJ'ÃfHQUAKE POSSIBLE SEICIIE ASSOCIATED WITH EARTHQUAKE REPORTED DOSAGE 36 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION ORIGXNAL DA'I'A SOURCE ~ GS PARAHETERS OF EPICE)ffER FROH UNIV~ MASHINGTOH1 SEATTLE LOCAL ))AG)IITUDE 4.00 SCALE =HL AlffHORZTY= GS 1734 19 JAH 1979 14~Hi 15.4 47,923H 119,685M V 3,60HL 10 H ORIGINAL Dh'fh SOURCE - GS REPORTED FELT Z)lFORHATION.

MOODMARD-CLYJ>E COHSULTA)ffS 23 APfi 81 PAGE $ )0

6 MOODMAR&-CLYDE COHSULTANTS 23 APR 8~

A PAGE 110 CAT. DATE TIHE(GHT) LAT LOHG SL INTEH HAG SH H DXS 0 S LOCATION AHD COHHENTS tlO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (KH) 18 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

PAf&AETERS OF EPICEH'lER SUPPLIED BY IJHIV OF MASHIttGTON 1735 21 JAtl 1979 20" 40-06.1 47,895H 119.682M 3. 01t'IC 3 1736 1 FEB 1979 11-26-46.4 42.575H 126.346M 4 ~ 80tlB 15 H ORIGIHAL DATh SOURCE ~ GS HAGNITUDE- 4.2HB HS COMPUTED FROH LON(mPERIOD VERTICAL COHPOHEtlT ~

HYPOCEtlTER SOLUl'IOH DEPTH RESTRAIHED BY GEOPHYSICIST.

43 P AHD/OR P'RliIVALB USED IH IIYPOCEtll'ER SOLUTION.

NOAA FEELS THIS TO BE A I&SS RELIABLE SOLUTIOH.

Q 1737 - 1 FEB 1979 16 23 51.4 42.554N 1&i.356M 4 30HB

~ 15 H ORIGIHRL DATh SOURCE < GS HAGNITUBE-~ 3. 9HS HS CONF'IJTED FROH LONG-PERIOD VER'fICAL CQHPOHEHT.

HYPOCEtlfER SOLUTIOH DEPTH RESTRAXHED BY GEOPHYSICIST.

28 P AND/OR P'RRIVALS UM1) IN IIYPOCEtlTER SOLUTIOH.

HOAA FCEI.S THIS TO BE A LESS RELIABLE SOI.UTIOH ~

1738 1 FEB 1979 20 18 28.2 47.524)l 121.920M V 3.60HL 8 H ORIGIN'3 DATh SOURCE ~ GB 9 REPORTED FELT XHFQRHATIOH. 9 13 P AND/OR P'RF:IVALB USED Itl tIYPOCEFITER SOLIJTIOH.

PARAHETERS OF EPICEtIFER SUPPLIED BY UHIV OF IJASHINGTOH 9

~, 1739 17 FEB 1979 08 36 21,4 46 169H 119.9MM

~ 3. 59HC '9 1740 3 Hei 1979 09-46-%.3 42.714H 126.018M 3.90HB 15 H ORIGINAL DATh SO(EKE ~

GS HYPOCENTER SOLUl'IOH DEPTH RESTRAIHED BY GEOPHYSICIST.

'9 P AHD/OR P'RRIVALS USED XN IIYPOCENTER SOLUTION.

HOAA FECLS THIS TO BE A LESS RELIABLE SOLIJTIOH.

1741 11 HAR 1979 14-"39-33,0 46.464H 122.399M V 3 '0HB H ORIGItIAL DATh SOURCE ~ GS 9 REPORTED FELT IHFQIttIATIOH.

39 P AND/OR P'RRIVALB IJSED IN IIYPOCEIITER SOI.UTI(JH.

PARAHEFERS OF EPICEtITER SUPPI IED BY UNIV OF MASHIHGTON 3 80HLp HAIJtIITUDE AIFIIIORITY ~ GS O

1742 12 Ill 1979 12 41 36.1 48.202H 1>>.761M V 3.80tIB 26 H ORIGXIIF'J. DATA SOURCF ~ GS REPORTED FELT IHFORHATION.

30 P AIID/OR P'FchIVALS USED IH HYPOCENTER SOLUTIOH.

PARAHETIDK OF EPICEtfIER SUPPLIED BY UNIV OF MASHIHGTOH 3.40ta, HAGIIIXTUDE AIfrHORXTY - GS 1743 13 HAR 1979 10 06 14.0 49.257N 126.958M 4,70HB 10 N ORXGXtIAL DATA SOURCE GB 9 HYPQCEI'ITER SOLUl'XOH DEPTH RESTRAIHED BY GEOPHYSICIST.

11 P AtlD/OR P'RliIVALS USED IN IIYPOQZITER SOLUTION, 1744 15 lVJt 1979 09'-"50-24.2 43. 105N 126.345M 3.9MB 15 H ORIGIHAL DATh SOUfKE ~ GS tlYPQCEtlTER SOLUTIOH DEPTH RFSTRAIHED BY GEOPHYSICIST.

10 P AHD/OR P'RF'IVALS USED IH IIYPOCE)ITER SOLUTIOH.

NOAA FEELS THIS TO BE A LESS RELIABLE SOLUTIOtI.

MOODMARD-CLYDE COtlSIJLThtll S 23 APR 81

l O 8~

~

MOODMARD-CLYDE COHSULTFAX 0 23 APR

(; ~ -.

)

I I

~

~ PAGE 111 CAT. DATE TINE(GNT) LAT LONG SL IHTEN HAG SH H DIS 0 0 LOCATXOH AHD CONHEHTS HO. DAY-HO"YEAR HR-HIH-SEC (NH) (KH)(KH) 1745 1/79 14 49 24.3 42.005H 126.709M 4.50ND 15 H ORIGINAL DATh SOURCE ~ GS

~

21 MAR 0 HYPOCENTER SOLUTIOH DEPTH RESTRAXHED BY GEOPHYSICIST.

26 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

)IOAA THIS Ta BE A LESS RELIABLE SOLUTIOH.

0 1746 8 J'J% 1979 07 29 37.S 45.995H 110.447M 4, 15NC 5 1747 4 HAY 1979 00 00" 49.9 43.575H 127,206M - 4,30HD 15 H ORIGIhh+L, DATh SOURCE = GS MAGNITUDE~ 3. 6HS HS COMP))TED FROM LONG-PERIOD VERTICAL CONPONEHT ~

HYPOCEHTER SOLUl'IOH DEPlll RESTRAI)'IED BY GEOPHYSICIST.

10 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOH. =

NOAA FEELS THIS TO BE n LESS RELXABIE, SOLUTION.

1748 7 JUN 1979 09~50.-30.4 43.533N 127.093M 4.90MB 15 H ORIGINS DATA SOIJRCE ~ GS MAGNITUDE~ 4.2NS NS CON.'UTEIJ FROM LOHG-PERIOD VERTICAL COMPONENT.

HYPOCE)lTER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSICIST 76 P AHD/OR P ARRIVALS USED IH NYPOCFHTER SOLI JT ION 1749 19 JUH 1979 1S=44 30o2 43.261H 126e 197M 4 '0MB 15 H ORIGINAL DATA SOURCE .-- GS HYPOCENTER SOLUl'IOH DEPTtl RESTRAINED BY GEOPHYSICIST 16 P At<D/OR P'RRIVALS USED IN tlYPOCFNTER SOLUTION NOAA FEEI.S THIS TO BE A LESS RELIABLE SOLUTION ~

1/50 27 JlJH 1979 12 40 21.5 43.295H 126.553M 4.50MB 15 H ORIGIHAL DATA SOlJRCE ~ GS HYPOCEHI'ER SOLIJTIOH ~TH RESTRAINED BY GEOPHYSICIST.

33 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH.

HOAA FEELS THIS TO ))E A IJ:SS RH IAB)& SOLUTIOH ~

1751 7 Jl)L 1979 20E50 01.5 46.521N l>M.169M V 3,00NL 5 N ORIGIHAl.. DATh SOURCE ~ GS 8 REPORTED FELT INFORMATION.

HYPOfXIITER SOLIJTIOit DEPTH RESlRAXHED BY GEOPHYSICIST.

9 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

HOAh FEELS THIS TO BE A LESS RELIABLE SOLIJTIOH.

1752 21 JUL 1979 22" 18" 47.3 47.715H 114 152lJ

~ 3,50ML 5 H ORIGINAL DATA SOURCE . GS Cl REPORTED FELT IHFORHATIOH.

HYPOCENTER I OLlJTIOH DEPTH RFSTRAXHFD BY GEOPHYSXCIST.

6 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH.

HOAh FEFJ S THIS TO PE A LESS REI IABLE SOLlJTIOH.

(

1753 20 JUL 1979 02-19-06.9 46'70H 120.591M 3. 69NC 1754 20 AUG 1979 01 23 56.9 . 43.392H 126.330M 4. 20HD 15 o )'

1755 30 AUG 1979 14 M=50o0 47.645H 127a037M 4.90MB 15 ORIGINAL DATA SOIJRCE ~ GS 0 HYPOCENTER SOLUl'IOH DEPTH RESTRAINED BY GEOPHYSICIST.

9 MOODMARD-CLYDE COHSULTAHTS 23 APR 01 O

8 MOODMARD-CLYDE COHSULTA)ffS 23 APR 8 PAGE 112 CAT ~ DATE TI)IE(GHT) LAT LOHG SI INCH HAG SH H DIS 0 S LOCATION AHD COHHEHTS HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH)

Q 15 P AHD/OR P'RRIVALS USED IH HYPOCEI'ITER SOLUTION.

NOAA FEELS 1)IIS TO BE A LESS RFLIABLE SOLlJTIO)I.

1756 25 SEP 1979 18 28 28.0 52o249H 115.440M 4.30 5 tl ORIGIHAL DATA SOURCF ~ GS HAGHIllJDE AUTHORITY OTT 9 , 14 P A)ID/OR P'RRIVALS IJSED IH )IYPOCEHTER SOLUTION. O 1~~ 16 OCT 1979 18:33-44.6 48.245H 114 '40M 3. 10IQ 5 N ORIGIHAL DATA SOURCE ~ GS RFPORTED FELT INFORHATIOH ~

HAGHITUDE ~ 2.70 HAGNITUDE AUTIIORITY ~ HSO HYPOCE)l fER OL(ITION DEPTH RESTRAINED BY GEOPHYSICIST.

6 P AHD/OR P AIJiIVALS IJSED IN HYPOCENTER SOLUTIOH NOAA FEELS THIS TO BE A I.FSS RELIABLE SOLUTION.

17 8 9 HOV 1979 lht02 11.4 49.002H 124.415M IV 4,30HD 28 tl ORIGINAL DATA SOIJfiiE ~ GS REPORl'ED FELT I)IFORHATION.

16 P AHD/OR P'RRIVALS UMD Itl )JYPOCE))TER SOI-UTIOH.

4. 10HL, HAGHITUDE AUTIIORITY PGC 1759 10 HOV 1979 04~K5=29.8 47.719N 120,056M 3s20HC Q

1760 15 HOV 1979 16 12 47.6 '49.2hOH 1'M.345M III 3.60)Q, 15 H ORIGIHAI Dh'I'h SOIJRCE i" GS REPORTED FELT IHFORHATION.

9 P A)"D/OR P'RRIVAI 8 USED IH HYPOCE)ITER SOLUTIOH.

HAGNITUDE AUTHORITY ~ PGC 1761 18 HOV 1979 02-"08 45.5 46.887H 119.567M 3. 10HC 1

.1762 24 HOV 1979 11 51alh.0 46,931H 119.565M, 3.40HC 8

1763 26 NOV 197'r 23-18 26.2 48.590H 1Ã.398M V 4 10HD

~ 21 H ORIGINAL DATA SOURCE ~ GS fiEPOI<TED FELT IHFORHATIOH.

27 P AHD/OR P'RRIVALS USED IH HYPOCEÃfER SOLUTIOH ~

PARAHETERS OF EPICE)ITER SUPPLIED BY UNIV OF MASHItIGTON 3.90HL ~ HAINITUDE AUf))ORITY " GS 1764 27 )IOV 1979 02=13=46.5 48.587H 1~~.4O6M 3.30)Q 20 N ORIGIN'I. DATA SOURCE - GS REPORTED FELT IHFORHATION.

~

HYPOCENTER SOLUTIOH DEPT)l RESTRAINED BY GEOP)IYSICISTa 13 P AHD/OR P'RRIVALS l)SED IH HYPOCEH)'ER SOLUTIOH.

HOAA FEELS 1)IIS TO BE A LESS RELIABLE SOI.UTIOH.

8 ORIGIM'L DATA 1765 29 HOV 1979 16" 19 07.1 49.388H 123.955M 3.80HB H SOURCE GS REPORTED FELT IHFORHATIOH.

1)i P AND/OR P'RRIVALS USED IH IIYPOCEtffER SOI IJTIOH.

1/66 10 DEC 1979 05 40 07i5 46.656H 120.575M 3.40HC 5 UM FELT 1767 7 IVB 1980 21 36 30.1 49.790H I+M.741M 4,90HB 44 H ORIGIHAL DATA SOURCE ~ GS REPORTED FELT IHFOfiHATIOtl a 57 P AHD/OR P'RRIVAI 8 lJSED IH HYPOCEHTER SOLUTION.

MOODMPZiD-CLYDE COHQJLTAHTS 23 APR 81

0 MOODMJ'BD-CLYDE CONNlLTAtrls 23 APR 81 PAGE 113 CAT. DA1E TIHE(GHT) Lhr LONI sL XHTEN HAG sH H Dzs o s LOCATION AHD COHHENTS HO. DAY~-YEAR HR-HIHMEC (MM) (KH) (KH) 1748 20 HAR 1980 23=47 43.3 46.210M 122.192M 4.10NL 4 H ORIGINAL DATA SOURCE Gs EARTHQI)hKE ASSOCzhTED IJITH VOLCANXSM.

1/ P AND/OR P'RRIVALS USED XH IIYPOCEHTER SOLUTIOH.

HAGNITUDE AUTHORXTY GS 1769 22 HAR 1980 22 22"42.2 46.209H 122o191M 4.30MB 3 N ORIGINAL DATA SOURCE ~ GS 16 P AND/OR P'J EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

IVALS USED IH tlYPOCEHTER SOLUTIOH.

3.50HL MAGNITUDE AUl'HORITY GS ~

r

. 1770 23 HAR 1980 15 22 42.9 46.222H 122.208M 3s40HL 1 H ORIGZHAl. DATA SOURCE < GS EhRIIIOUAKE ASSOCIATED MITH VOLCANISH.

10 P AHD/OR P'RI?IVALS USED IH IIYPOCENTER SOLUTXOH.

MAGNITUDE AUTIIORXTY ~ GS 1771 24 HAR 1980 13 14 42.2 46.204H 122.221M 3,20N 2 N ORIGINAL nhrh soURcE Gs 6 EARTIIDUAKE ASSOCIATED l)I'I'H VOLCAHISH.

6 P AHD/OR P ARI?XVALS USED XH HYPOCEHTER SOI UTIOH ~

HAGNITUDE AUTHORITY ~ GS

)s 1772 24 HA 1'980 21 56 49.6 46.211H 122.188M 4,20MB 3 H ORIGINAL Dh'rh SOURCE .. Gs EARl'HOUAKE ASSOCIATED MITtl VOLCAHISH.

24 P AHD/OR P'f0?XVALS USED IN IIYPOCE)rIER SOLUTIO)l.

4.20HLy HAGHITUDE AUTHORITY ~ Gs O 1773 25 HAR 1980 04 07-09.7 46.207H 12r? ~ 189IJ 4,20MB 4 H ORIGINAL DATh So~i ~ GS EARTIIOI.IAKE ASSOCIATED IIITH VOI CANISH.

10 P AHD/OR P'RI?IVALS USED IH HYPOCENTER SOLUTIOH.

3. 40ML MAGNITUDE AUBIORITY Gs 1774 25 MAR 198O 07-"08:46.2 46.200N 1~~.186M 4.20ND H ORIGIHAL DATA SOURCE ~ GS Ehl?THOUAhrE ASSOCIATEn MITH VOL:hNISM.

11 P AND/OR P'FRIVALG USED IH HYPOCEHTER SOLUTIO)l.

3 40HL

~ HAGHITUDE Aol'HORITY Gs 1775 25 HAR 1980 13 42:14 0~ 46.204H 1M.186M 3.30HL H ORIGI)JAL nhrh sol)RCE -- Gs EARl'tlOUhm: ASSOCIATED MITH VOLCAHISH~

7 P AND/OR PRRIVALS USED IH IIYPOCENTER SOLUTIOH 3.30HL MAGNITUDE AUllIORITY .= GS

@ 1776 25 HAR 1980 17 18 47.0 46.212M 1>>,181M 3. 50HL 1 N ORIGX)IAL DATA SOURCE Gs EARlHOUhKE ASSOCIATED MITH VOLCAHISH.

9 P A)in/OR P'RRIVAI 8 USED IN HYPOCE)JTER SOLUTXOH MAGNITUDE AUllIORITY ~ GS 1777 25 HAR 1980 21 50 51;3 46,207H 122.201M 3. 40HI 3 H ORIGINAL DhTA SOURCE ~ Gs O EARTI(ouhKE AssaczATEn MITH VOLCANISM.

3 P AHD/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOH.

HAGHITUDE AUllIORITY ~ GS MOONNRD-CLYDE CONSULTANTS 23 APR 81 r~

PAIIF'14

WOONJARD-CLYDE CONSULTAHTS 23 APR 8~

p, 9 PAGE p 114 CAT ~ DhTE TIIFE(GHT) LAT LONG SL INTEH HAO SH H DIS 0 8 LOCATION hHD COH)'IEHTS HO. DAY~-YEAR HR-HIH-BEC (HH) (KH) (IQ1)

'3 1778 25 HAR 1980 22 22-14.7 46.203H 122i167M 3.40HL 3 N ORIGINhL DATA SOURCE ~ GS

, EARTHQUAKE ASSOCIATED MITH VOLCANISH.

7 P A)ID/OR P'RI'IVALB USED IN HYPOCEHTER SOLUTIOH.

HAGHITIIDE AUTHORITY ~ (iS 1779 25 HAR 1980 22-W-01.7 46.203N 1>> i 178M 3.80HB H ORIGIHAI DATA SOUliiE ~ GS EARTIIQuhKE ASSOCXA'rED WITH VOLCANXSH.

18 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH 3 70HLy HAGHITUDE AUTHORITY i GS 9 1780 26 HAR 1980 01 06.30.0 46.212H 1~2.190M 3. 50N H ORIGINAL DATA SOIJfiCE i-. GS EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

14 P AHD/OR P ARRIVALS USED IN t)YPOCEHTER SOLUTIOH ~

Q HAGNITUDE AUTtlORXTY ~ GS 1781 26 l&JI 1980 02 03 18.4 46.215H'~i19IM 4.30HB 4 H ORIGIHAL DATh SOURCE - GS 6 EARTHQLIAKE ASSOCXATED WXTH VOLChHISH.

17 P AND/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTION.

3.80HL, HAGNITUDE Altfl)ORITY GS 0

1782 26 HAR 1980 02-36 00.0 46s204H 122i187M 4.20HB 4 N ORIGINAL DATA SOURCE i GS EARTHQLL4KE ASSOCIATED MITH VOLChHIBH.

16 P AND/Oti I mnlVAI 8 USED Xtl HYPOCENTER SOLUTION.

3. 50HL HAGHITUDE AUTHORITY fiS 1783 26 HAR 1980 03 36 24.1 4bo209H 122e176M 3.50N 4 H ORIGIHJJ DATA SOURCE u-. GS EARTIIQUAKE ASSOCIATED IJXTH VOLCANISH~

5 P AND/OR P'RfiIVALS USED IN ')IYPOCEHTER SOLUTION.

HAGHITUDE 'AUTHORITY ~ GS 1784 26 HAR 1980 04 10 43o4 46a204H 1++i196M 3o 10N 3 N ORIGIHAI DATA SOURCE ~ GB e EhRTIIQUhKE ASSOCIATED IJITH VOLCANISH.

8 P AND/OR P'RRIVALS USED IN t)YPOCENTER SOLUTIOH.

t)AGHITUDE AUTHORITY GS 178S 26 HAR 1980 04 14."28 9

~ 46.210N 122,191M 3. 80t1B 4 H ORIGIHAI DATA SOURCE GS EAR)'HQUAKE ASSOCIATED IJITH VOLCAHISH~

12 P A)ID/OR P'RRIVALS USED IH IIYPOCEHTER SOLIJTIOH.

3 70HL

~ t(l)GHITUDE AUft)ORITY ~ GS 1786 26 HAR 1980 OS 00 04.4 46.210N 122.182LI 4 10HD

~ 3 H ORIGINAL Dhrh SOURCE - GS EARTHQUAKE ASSOCIATED WITH VOLChHISH.

14 P AND/OR P'RRIVAI S USED XH IIYPOCEHTER SOLIJTIOH.

3.60HLg HAGNITIJDE AUTHORITY = GS 1787 26 )IJL) 1980 07 17 21o9 46.207H I i2.179M 3.80HB 4 H ORIGINJ'ATA SOURCE GS EARTHQUAKE ASSOCIATED WITH VOLChttISH.

11 P AND/OR P'RRIVALB USED IN )IYPOCDITER SOLUTION o 3.50HL, NV3HITIJDE ALITHORITY GS MOODMARD-CLYDE COI(SIJLTA)JTS 23 APR 81 t

• MOODMARD-CLYDE CON,2)LTANTS 23 APR 8 PAGE 115 LOCATION COttttEHTS CAT. DATE TI)JE(G)(T) LAT LONG SL I)ffEH klAG Sll H DIS Q S AHD tlO. DAYWO-YEAR HR-HIH-SEC (HN) (KH) (KN)

I s[

1788 26 1980 09 10:07.9 46.210H 1>M.175M 4.10HD 4 ORIGIHti DATh SOURCE GS HAR N EARTllQUAKE ASSOCIATED MITH VOLCAHISH. s 17 P A)JD/OR P'INIVALB USED IN ttYPOCE)ffER SOLUTIOH. [

3.50HLg HAGHITUDE AUTttORITY ~ GS s

178'9 26 HAR 1980 09 4l)-02.7 46.206N 1M.168M 4. 20HB H bRIGINJ'L. DA'fh SOURCE ~ GS [

EARTllQUAKE ASSOCIATED lJITH VOLCANISH.

20 P AHD/OR P'RRIVALS USED IN ttYPOKNTER SOLUTIOH, 6 3.80)(Lp tthGHITUDE AUTHORITY ~ GS 1790 26 HAR 1980 17 07 10.7 46.194H 122.193M 4o 10t% 7 H ORIGIN."J DATA BOl)RCE ri GS s EARlHQUAKE ASSOCDATED MITH VOLCAHISN ~ [

22 P AHD/OR P'RRIVALS USED IH llYPOCEHTER SOI UTION.

4. 00)(L MAGNITUDE AUTHORITY - GS 1791 26 HAR 1980 20-37-49.0 46.207H 122.185M 3.70)tL 5 H ORIGIHAL DATh SOURCE . GS Q EARTHQUAKE ASSOCIATED lJITH VOLCAHIBtt~

7 P AHD/OR P'RRIVALS USED IH llYPOCEHTER SOLUTIOH HAGNIT(lDE AUTHORITY ~ GS 1/92 27 Hf'8 1980 03 40 05e7 4be222H 122s181M 4 10ND

~ 5 . H ORIGIHAL DATA SO(JRCE ~ GS EAR nta(inKE ASSOCIA'rED WIT)t VOLCANIStt.

22 P AHD/OR P'RRIVALS USED IH I)YPOCENTER SOLUTION 3.90HLp NAGNITUDE AUTHOltITY ~ GS 1793 27 M 1980 03 48-58.5 46.212H 1>>.189M 4.20HD 5 H ORIGINAL DATA SO(JRCE ~ GS EARTJJQUAKE ASSOCIATED lJITH V01 CANISH.

20 P AHD/OR P'RRIVALS USED IH llYPOCEHTER SOLUTIOH.

3.90t(Ly PAGHITUDE AUTltORITY ~ GS 1794 27 t(AR 1980 04-26-10' 46a199H 1>>o170M 4. 00(& 7 H ORIGIHAL DA'fh SOURCE GS ts) EARTHQUAKE ASSOCIATED MITN VOLCANISN.

16 P AHD/OR F'Rf(IVALB USED IH HYPOCENTER SOLUTIONs 3.4at(L, HAGNIT(JDE AJJfttORITY - GS 1795 27 )tfSi 1980 05 30:43,5 46.208H 122.185M ., 3.40llL 4 H ORIGIHAL DATh SOURCE -. GS EARTllQlthKE ASSOCIATED WITH VOLChHISM.

'? P AND/OR P'RfiIVALS USED Itt llYPOCFHTER SOLUTION.

ttAGNITtJDE AUTHORITY ~ GS 5

1/'?6 27 ttAR 1980 06 33 24.0 46 205N 1M.226M

~ 4 a 10)tD 1 H ORIGINAL DATA SOURCE . GB EARTHQUAKE ASBOCIhTED MITH VOLCAHIS)t. r' 22 P AHD/OR P'RRIVAL. USED IH llYPOCENTER SOLUTION.

3 80MLg HAGHITUDE AUfttOttITY ~

~ GS 1797 27 )JAR 1980 07-39 15,6 46.208H 1>&.182M 3.40N 5 H ORIGIN'L. DATA SOUR()E ri GS EARTHQUAKF ASSOCIATED WITH VOLCANIStt. .

10 P AHD/OR P'RRIVAI 8 USED IH HYPOCENTER SOLUTIOH.

tthGHITUDE AUTHORITY ~ GS MOODMARD-CLYDE COHQJLTAHTB 23 APR 81 PAGE 116

MOODMARD-CLYDE COHSIJLTANTS 6: '.

p f'AGE 116 CAT. DATE TIME(G)IT) LAT LONG SL IHTEH MAG SM H DIS 0 S LOCATION AND COMMEHTS NO. DAY-MO-YEAR HR-MIH-SEC (MM) (KM)(KM) 1/98 27 MW 1'980 12 32-54.6 46 211M 122.190M

~ 3o40)Q N ORIGINAL DATA SOURCE ~ GS EARTHQUAKE ASSOCIhTED MITH VOLCANISH.

12 P A)ID/OR P'RRIVALS USED IN HYPOCENTER SOLUT!ON.

MAGHITlJDE AlJTHORITY ~ GS 1799 27 MJS 1980 14-~-54.7 4be207N 122.192M 4.20MB N ORIGINAL DATA BOIJRCE . GS EARTHQUAKE ASSOCIATED llITH VOLCANISM.

20 P AHD/OR P'RRIVAI 8 IJSED IN IIYPOCENTER SOLUTION.

3.90J(L, HÃiNITIJDE AUI'IIORXTY GB 1800 27 MAR 1980 15 "~ 03.8 46.216N 122.200M 4oOOMB 6 H ORIGII'IAL DATh SOURCE . GS EARrHQUAKE ASSOCIATED MXTH VOLCANISM.

22 P AHD/OR I 'RRIVALS USED IN JIYPOCENTER SOLUTION. ~

3 ~ 60ML MAfJNITIJDE AUTHORITY GS 1801 27 WB 1980 18 55.44.9 46.210H 122,194M 3.60ML 5 N ORIGINN DATh SOURCE ~ GB EARTHQUAKE ASSOCIhTED MXTH VOLCAHISM. 6 14 P AHD/OR P'RRIVAL USED IN HYPOCENTER SOI.UTI ON ~

MAGNITIJIJE AUlllORITY ~ GS 1802 27 MAR 1980 20 16 43,1 46.209N 122.185M 3,90MB . 5 N ORIGINAI DATA SOIJRCE ~ GB EARTHQUAKE ASSOCIATED llITH VOLCAHISM.

2'> P AHD/OR P'RRXVAI-8 USED IN IIYPOCENTER SOLUTXON. Q 3.80ML ~ MACHITUDE AUTHORITY ~ GS 1803 27 MAR 1980 22"00 05.6 46.219H I>>'o197M 4.60)ID 4 H ORIGINAL DATA SOURCE GS C)

EARTIIQIJAKE ABSOCIATFD MXTH VOlahNXBM.

36 P AND/OR P'RRIVALB USED IN HYPOI~ER SOLUTION.

4. 50ML MAGHITUDE AUTHORITY GS 6 1804 28 MAR 1980 01-"51 12eb 46.212> N1~.183M 4oIOMB 5 N ORIGIJIJ'ATA SOURCE ~ GS CJ EARTIIQUAKE ASSOCIATED MITH VOI.CANISH~ f.

22 P AND/OR P'RRIVALS USED IH IIYPOCENTER SOLUTION.

3.70ML IIAGNITIJDE AUTHORITY -- GS 1805 28 MAR 1980 03-35 50s9 4bo208N 12>2a189M 3.10M 5 N ORIGINAL DATA SOURCE - GS EARTHQUNK ASSOCIATED MITH VOLChNISM.

16 P AND/OR P'RRIVAI 8 USED IN HYPOCENTER SOLUTION.

MAGNITUDE AUIHORITY ~ GS 1806 28 MAR 1980 08 28-25.7 46.'>21N 1>2.175M 4.30MB 4 N ORIGIIW DATh BOUN% ~ GS EARTHQUAKE ASSOCIATED MIl'H VOLChNISM.

29 P AND/OR P'RRIVALS USED IH HYPOCEHTER S OLUTI OH .

4.20ML MAGHITUDE AUTHORITY ~ GS 1807 28 MAR 1980 12 51 19.4 46.217H 122o179M 3 '0MB 5 N ORIGIIIAL DATA SOI fiiE ~ GB Q EARTHQ(JAKE ASSOCIATED MXTH VOLCANISM.

19 P AHD/OR P'RRXVAI..S USED IH JIYPOCENTER Sou)TION.

3.60ML, MAGNITUDE AUTHORITY GS 0

MOODMARD-CLYIIE CONSIJLTA)ffS 23 APR 81 g

~ ~4

Q MOODMARD-CLYIJE COHQJLTANfS 23 APR S~e A

PAGE 117 e CAT. DA'fE TIHE(BHT) LAT LONG SL IHTEH HAB SH H DIS Q 0 LOCATION AHD COHHEHTS NO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH) (KH) 1000 28 HAR 1900 13 59 30.5 46.212tt l~e100M 4.00tf0 5 H ORIGINAL DATA SOURCE e= GS EARTHQUAKE ASSOCIATED MITH VOLCANISH.

~ 19 P AHD/OR P f'BfiIVALS USED IH HYPOCENTER SOLUTION e 3.70HL, HAGHI11lDE AUTtIORITY - GS 1009 28 HAR 1980 15-10 43e4 46 209H 122.204M

~ 3.60HL 2 N ORIGINAL Dffrh SOIJRCE . BS EARTHQUAKE ASSOCIA'IED MITH VOLCAHISH.

15 P AHD/OR P'RRIVALS USED IN IIYPOCEHTER SOLUTIOH.

HAOHITUDE AUTHORITY ~ GS 1010 2S tlAR 1900 22"50 5be7 46.103H 122e202M 3.70HD 5 N ORIGIHhl DATA SOIIRCE GS EARTHQUAKE ASSOCIATED IJITH VOLCAHISH.

10 P AHD/OR P'RliIVALS USED IH IIYPOCEHTER SOLUTION .

3 ~ 70HLy HAGHITUDE AUTHORITY ~ GS 1011 20 HAR 1900 .23'50 28.5 46.216N 122el95M 3, 60HI 4 N ORII)ltJ55L DATA SUIJPiCE e= GS 0 EAR ()(QUAKE ASSOCIATED MITII VOLCAHISH.

13 P AIID/OR P'RIiIVALS USED IH IIYPOCEHTER SOLUTIOH.

HAGHITUDE AUTHORITY . GS 1012 29 HLR 1900 05 40 47,3 46.211tt 122.109M 3.00HL 5 . H ORIGINAL DATh SOURCE ~ GS EhRTHAUAKE ASSOCIATED lIITH VOLCANISH ~ '

24 P AND/OR P'RRIVALS USED IH HYPOCEtITER SOLUTIOtt.

HAGHITUDE AlmIORITY - GS 1013 29 HAR 1980 08 36 Sbe0 46.207H I'>>e170M 4.00HD 5 N ORIGltIAL DATA SOURCE ~ GS EhRTHQUhKE hSSOCIATED MITH VOLCANISH.

20 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3. 80HL, HAGHITUDE AUTHORITY GS 101'4 29 HAR 1900 10 34 40.5 46.220H I'>>e104M 3.70HD 4 H ORIGIHAL DATA SOIJRCE e GS O EAR'fHQUAKE ASSOCIATED MI'fH VOLChHISH.

9' AND/OR P'RRIVAL.S USED IH IIYPOCEHTER SOLIJTION.

3.50HL, HAGHITUDE AUTIIORITY GS 1015 29 HAR 1900 11 51 40.2 46.20'9H 1>Me109M 4. 10HD 6 N ORIBltt55L Dhrh SOIJRCE - GS EARTHQUAKE ASSOCIATED MITH VOLChHISH.

21 P AND/OR P'RRIVALS USED IH tlYPOCEHTER SOLIJTIOH.

4 ~ 00HLy I'15GNITUDE AUTIIORITY e GS

' 1816 2 HRR 1900 13-01 50.9 46,205H 122.208M 3.70HB 1 H ORIGIN/J DATA SOURCE GS EARTHQUAKE ASSOCIATED MITH VOLChHISH ~

15 P AND/OR P'RRIVAI 0 USED IH HYPOCENTER SOLUTIOH ~

8 3.70HLg HAGHITIJDE AUI'HORITY ~ GS 1S17 29 HAR 1900 15 05 24.9 4be207H 122e103M 3.70HD 4 H ORIBIHAL DATh SOURCE ~ GS 0 EART)IQUAKE ASSOCIATED MITH VOLCANISH~

17 P AIID/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTIl3H.

3.80HL HAGHITUDE hUnKIRITY ~ GS MOODMJm-CLYDE CONSULTA)rrS 23 APR 01 e'h5.

5 '55e

8 MOODMARD-CLYDE CONSULTAHTS 23 APR 8~

PAGE 118 (MT. DhTE TIJFE(GHT) LAT LONG SL INTEH HAG SH H DIS Q 8 LOCATI OH AHD COHHENTS HO. DAY-HO-YEAR k JR-MIH-SEC (HH) (KH) (k(H) ~

Q 1818 29 HAR 1980 15- >>-39.4 46.200N 1~a 182M 4.2OHD 5 N ORIGINAL DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

23 P AND/OR P'l&iIVALS USED IN HYPOCENTER SOLUTION.

l 20HL>> HAGHITUDE AUTHORITY ~ GS 1819 29 HAR 1980 19 01-01 9 ~ 46.216N 1>>>>.179M 3. 40kkl N 'ORIGINAL Dh'rh SO()RCE - GS EARTHQUAKE ASSOCIATED lJITH VOLCANISH.

5 P AND/OR P'RRIVALS USED IH kkYPOCE)JTER SOLUTIOH.

HAGNITUDE AUTHORITY ~ GS 1820 29 HAR 1980 20 55-52.1 46.212N 122 185M

~ 4.00kkL N ORIGINJ'J DATA SOURCE i-. GS EARTHQUAKC ASSOCIATED lJITkl 'VOLCANISH.

22 P AND/OR P'Fc?IVALS USED IH klYPOCEHTER SOLUT IOlI HAGHITUDE AUTHORITY ~ GS 1821 2/ HAR 1980 23 20 40.7 46.205H 122s 186M 4.10HB 4 H ORIGINAL DA'fh SOURCE GS EhRTJJQUAKE ASSOCIA'k'ED lJITll VOLCAHISH.

18 P AFJD/OR P'RRIVALS USED IH klYPOCENTER SOLUTIOH

3. 90HL t'LkGFJ IllJOE AUTHORITY ~ GS l~ 30 HAR 1980 02-56-19,8 46;216H 1>>'>>. 188M 4.20HB 3 N ORIGIk!hk DATA SOJJRCE GS EARTFJQ(JAKE ASSOCIA'k'ED WITH VOLCAHISH.

21 P A)JD/OR P'RRIVALS USED IN HYPOCEHTER SOLUTION 3 ~ GOHL>> HAGNITUDE AUFHORITY ~ GS 1823 30 HAR 1980 03 53 54.9 46.204H 1K?.196M 4al0)FB 2 H ORIGIN."3 DA'fh SOUR(:E ~ GS EARTklQUAKE ASSOCIhTED lJITH VOLCANISH.

20 P AND/OR P'RRIVALS USED IN HYPOCEHTER SOLUTION.

3 90HL, HAGNITllDE AUTHORITY OS

~

1824 30 HAR 1980 07J42 17.3 46.214H 122,180M 4. 10HB 3 H ORIGIN'J DATA SOURCE GS e EARTJJQ(JAKE ASSOCIhTED WITH VOLChNISH.

24 P A)JD/OR P'RRIVAJ 8 USED IN JJYPOCENTER SOLUTIOH.

3 OOYiL HAGHI'lllDE AUTI(ORITY GS

~

~

1825 30 HAR 1980 09 16 &.2 46.210H I'>>'>>e 190M 4.20HB 5 N ORIGIHAL DATA SOU!'CE GS EARTHQUAKE ASSOCIATED lJITH VOLCANISH.

29 P AHD/OR P'RRIVALS USED IN kkYPO(~TER SOI UTIOH, 4".20WL, HAGNITJJDE AUfkkok?ITY GS 1826 30 HAR 198012!39-57;8. 46.210N 122.174M 4o10HB 5 H ORIGINAL DATA mRCE GS EARTJ(QUAlK ASSOCIATED MITH VOLCAHISH.

22 P AND/OR P'fd(IVAL, USED IN kkYPOCENTER SOLUTIOH.

3.70HL, JFAGNITUDE AUTIIOF?ITY GS ~

~ 1827 30 HAR 1980 13-"32-25.4 46.215N 1 >>.193M ha30HD 5 N ORIGINAL DATA SOURCE ~ GS>>

(J) EARTJJQUAKE ASSOCIAI'ED lJITH VOLCANISH.

22 P AND/OR P'FJRIVALS USED IH llYPOCEHTER SOLUTIOH.

4.20)FL HAGHITUDE A(ITNORITY =. GS C

MNDMN~CLYDE COHSULTAFJTS 23 APR 81

• '4

~t ~ i

WOODWARD-CLYDE CONuaTAt<rS 23 APR 8 PAGE 119 CAT. DATE TIHE(GHT) LAT LONG SL INTEN HAG SH H DIS Q S LOCATION AND COHHENTS fly DAY-HO-YEAR HR-HIN-SEC (HH) (KH)(KH) 1028 30 HAR 1980 13".49"37 ~ ni 43.430N 127i123M 5,20HB 15 N ORIGINAL Dh'fh SOURCE r GS Q HAGNITUDE~ 4.7HS HS COHPl)TED FROH LONG"PERIOD VERTICAL COHPONFNT.

HYPOC&JTER SOLtfTION DEf TH RESTRAINED BY GEOPHYSIST.

80 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

1829 30 HAR 1980 17 55 10.2 46,216N 122,180M 4.50HB 5 N ORIGINAL DATA SO(JRCE r GS EARTHQtfhl03 hf)SOCIATED MITH VOLCANISH. 8 28 P Af(D/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

4.40HLg HAGNITUDE Atfft(ORITY GS r 1830 - 30 HAR 1980 22 47 11.9 46.218N l~i195W 4.40HB 4 N ORIGIN'J- DATh SOURC'E ~ GS EARTHQtlhKE ASSOCIATED lJITH VOLCANISH.

23 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIlN. 8 4.20HL, HAGNITtrDE Atm(ORITY . GS 1831 31 HAR 1980 02 nn 06.3 46,214N 1~,193M 4.20ltB 4 N ORIGINAL DATA St)URCE ~ GS 8 EARTHQUAKE ASSOCIATED WITH VOLCANISH~

27 P AllD/OR P'RRIVALS USED IN )tYP()t:ENTER SOLUT IOJ'l .

4.10HL, HAGNITUBE Atfl'HORITY GS 1832. 31 HAR 1980 07tn9=42.2 46.217N 122.190M 4.naHL N ORIGINA) DATA SOUtiiE > GS EARTHQUFQCE ASSOCIATED lJITH VOLCANISH. 6 21 P AND/OR P'RRIVALS USFD IN ttYPOCENTER SOLUTION.

HAGNITI.IDE AUTHOfllTY ~ GS 1833 31 HfiJi 1980 08 12 52.0 46.220N 122.204W 4.20HB N OfiIGINAL DATh St)t)RCE ri GS EhRTHQUAKE ASSOCIhTED MI'fH VOLCANISH.

1'9 P AND/OR P'NiIVALS USED IN ttYP()CENTER SOLUTION. Q 4.10HLg HAGNITUD'E AUTI(ORITY ~ GS 1834 31 HAR 1980 il 34 10i0 46.220N 1>M.188M 4.60HD N ORIGINAL DATA SOURCE r GS EARTHQUAKE ASSOCIATED WITH VQI CANISH.

32 P AND/OR P'RRIVALS lJSED IN HYPOCENTER SOLUTION.

4.40HLp MAGNITUDE AUTIJORITY ~ GS 8 1835 31 HAR 1980 14=4'9=01.3 46.222N 122.1'93M n.noHD N ORIGIML DATA SOURCE ~ GS EARTHQUAKE ASSOCIlYt ED lJITH VOLCANISH. 6 24 P AND/OR P ARRIVAI..S USEf) IN HYPOCENTER SOLUTION ~

4.30HL HAGNI'l'UDE A'tfTHQRITY = GS 1836 31 HAR 1980 19 29 11.5 46.213N 122.177M 3.80HL 4 N ORIGINAL DATh SOt)RCE GS EARTHQUAKE ASSOCIATED MITH VOLCANISH.

18 P AND/OR P'RJIIVALS USED. IN HYPOCENTER SOLUTION.

HAGNITl)DE Atfl'HORITY .. GS 1837 31 HAR 1980 19 37 10.1 46.195N 122.180M .SOHD 3 ORIt)INAL DATA SOuRt:E - GS EARTI(QUAKE ASSOCIATED MITH VOLCANISH.

19 P AND/OR P'RRIVALS USED IN ttYPOCENIER SOLUTION.

3.90HLg HAGNITUDE At)THORllY ~ GS 6 MOODWARD-CLYDE CONSULTfÃfS 23 APR 81 PAGF )20

i ~

>> MOODMARD-CI YDF CONSULTAtffS 23 APR ~

%F 6

~ lq

~

PAGE 120 CAT. DATE TXt)E(GHT) LAT LONG SL It)TE)) HAG SH H DIB Q S LOCATION AND COHHEHTS l'In DAY-Hn-YEAR Hf?-HIH-SEC (HH) (KH> (KH>

'3 ~

1838 1 f'ZR 1980 04"-24 30s5 46.222N I'>>'>>.184M 5. 00)ID H ORIGINfJ DATh SOURCE ~ GS EARTHQUAKE ASSOCIATED MXTH VOLCANXSH.

HAG))ITUDE~ 3 7HS

~

HS (J>HPUTED FROH LONG-PERIOD VERTICAL CO)IPONENT, 4 P AND/nR P'f(RIVALS USED IN HYPOCENTER SOLuTION.

'4.70HL, tlAGNITUDE AUTHORITY GS 1839 1 APR 1980 08"-54 25.4 46.218H 122.175M 4.50HD 4 H ORIGINAL DATh SOURCE ~ GB 8 EARTHQUAKE ASSOCIATED WITH VOLCA))ISH.

30 P AND/OR P'RRIVAL." USED IN l)YPOCENTER Snl UTION.

4.50HL>> HAGNITUDE AUTHORITY ~ GS 6 1840 1 APR 1980 12 30-46.7 46.2XSN 122.182M 4 Sot)D

~ N ORIGIt)AI DATA SOURCE ~ Gs

6) EART))QUAKE ASSOCIATED MIT)l VOLCht)XSH. C) 32 P AND/OR P'RRIVALS USED IN HYPOCE))TER SOLUTIONS 4.00)IL HAGNITUDE AUIHORXTY GS 1841 1 APR 1980 23 14 38 6F 46.206N X'>>'>> ~ 194M 4.50HD 5 N ORIGINAL DATA SOUICE . Gs EARTHQUAhE ASSOCIATED WITH VOLCMISH.

32 P At)D/OR P'RI IVALB USED IH l)YPOCEHTER SOLUTION. C) 4.60HL HAGNITIJDE AUTHORXTY GS X842 2 APR X9SO 09"-37'X3,I 46,220)) X~W. 184M 4.80HD 3 N ORXGI))fJ DATh SOURCE ~

GS EARmouhKE ASSOCIATED MIm VOLCANISH.

HAG))ITUDE< 3 'HS t)S COHPUTED FROH LONG-PERIOD VERTICAL COHPONE))T.

35 P AND/OR P'RI IVALS USED IN )lYPOCE))TER SOLUTION.

4 70)IL HAGHITUDE AUTHORITY GS

~

~

1843 2 APR 1980 Xs."48s20,8 46,210N I'>>'? 195M

~ n. Xota. N ORIGIt)N DATh SOURCE ~ GS EART))ouhKE ASSOCIATED MITH VOLCANISH.

14 P AND/OR P'RRIVALS IKED XN HYPOCENTER SOLUTION. 9 HAGHITUDE h)fmnRITY . GS 1844 3 APR 1980 02 43 19.8 46.234N I'>>'>>.204M 4.50I18 3 H ORIGI)'"J DA'fh SOUI"CE = GS EART))QUAKE ASSOCIATED WITH VOLCANISH~

22 P AND/OR P ARRXVALS USED IN l)YPOCENTER SOLUTIOH.

4.40)IL, wot)ITUDE Aumo)?ITY . Gs 6 p 1845 3 APR 1980 09 35 27a2 46.234N 122.173M 4. 80)% 1 N ORIGIt)AL DATA SOURCE ~ GS 9 EARTHQUAKE ASSOCIh'fED WITH VOLCANISH. e 29 P AND/OR P'RRIVALB USFD IN l)YPOCENTER SOLUTION.

4.80HLt HAGNIll)DE AUTHORITY ~ GS 6

1846 3 APR 1980 15 30 20o2 46.208N 122 189M

~ 3.70m 4 N ORIGINA DATA SOUI?CE GS EARTHQUAKE ASSOCIATED WITH Vnl CANISH.

13 P AND/OR P'PtiXVALS USED Itl HYPOCEHTER BOLUTION. e )

O')GNITUDE AUTHORITY ~ GS 1847 3 f'J>>R 1980 21 51:58.8 46,227H 122.204M 3.60)II 3 N ORIGI))AL DATA snuRcE Gs EARTHQ(lhKE ASSOCIATED WITH VOLCANISH.

MnnDMARD-CLYDE CONSULTA))TS 23 0R 81

i r MOODMARD"CLYDE COHSUI ITS 23 APR 81 ! q ~~

8 PAGE 121 CAT. DATE TIKiE(GHT) LAT LONG SL IHTEFI HAG SH H DIS Q 8 LOCATION AND COHHENTS NO. DAY-HG-YEAR HR-HXFI-SEC (Htl) (KH) (KH) 10 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

HAGIIXTUDE AUTIIORITY GB 1848 3 JPR 1980 23-57-52.3 46.232N 122 218W

~ 5.00IS 2 H ORIGINAL DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED MITH VOLCAHISH~

, 27 P AHD/OR P'RRIVALS IJSED IN HYPOCENTER SOI.IJTION.

4 ~ 50I(L ~ HAGHITUDE AUlllGRITY ~ GS 1849 4 APR 1980 09-.42i35.5 46.224H 122.209M - 4.40tID 5 N ORIGINAL DATA BOUN)E ~ GS EARTHQUAKE ASSOCIATED WITH VOI&hNISH.

21 P AND/OR P'RRXVALG USFD XH IIYPOCENTER SOLUTIOH.

3.80HI.p t/AGHXTUDE AUTIIORITY .= GS 1850 APR 1980 09 48 56! 3 46 237H 122 206M

~ ~ 3/60HL 5 H ORIGIHAL DATh SOUlKE ~ GS /

EARllIQUAKE ASSOCIATED MIl'H VGI.CANISH.

11 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION.

HAGNXTUDE AUll(ORITY GS 1851 4 hPR 1980 13 45 05.8 46 21&I IK?/176M

~ 4: H ORXGXHAL DATA SOIJRCE ~ GS EAF(FHQUAKE ASSOCIATED WITH VGLCANISH.

tthBNITUDE~ 3.8HS HS COHPUIED FROH LONG-PERIOD VERTICAL CO)IPGHEHT.

29 P AND/OR P'RRIVALB USED XN IIYPOCEHTER SOLUTIOH O 4 ~ 50HL ISW'NITUDE AUI'HORXTY = GS 1852 4 APR 1980 21:40=43.5 46.132H 122.033M 4.4OW 10 N ORIGINAL DATA SOWX . GB EARTI-IQUAKE ASSOCIATED WITH VOLChNXSH ~

19 P AND/OR P'RRIVALB IJSFD IN IIYPOCEtITER SOLUTION.

HAGNITUDE AUTIKIRITY ~ GS 9

1853 5 APR 1980 02 09 29.0 46.219N 122.183M 3. 40HI 3 N ORIGINAL DATA S(mFCE !- GS EARTI-IQUAKE A. SOCIATFD MITH VOLCAHISH.

10 P AHD/OR P'RRIVALB USED IN HYPOCENTER SOI UTION. 0 HAGNITUDE AIJTHORITY ~ GS O 1854 5 APR 1980 06.39.03.3 46.208H 122.184M 3,70IIL 5 N ORIGIN(! DATA SOURfE - GS 9 EARlIIQUAKE ASSOCIATED MXTH VOLCANISH.

9 P AND/OR P'RRIVALB USED IN tlYPOCEHTER SOLUTIOH.

HAGNXTUOE AUTIIORXTY GS 6 1855 5 hPR 1980 08-49 17/3 4bo231H 1Z?/16blJ 4.30)ID N ORIGIHhL DATA SOURCE GS Q EARBIQUAKE ASSOCXhlED WITH VOLCANISH. O 13 P A)ID/OR F 'RRIVALS USED IN IIYPOCENTER SOLUTION.

3.90)ILg t44GHIllJDE AUI'HORXTY ~ GS 1856 5 APR 19SO 10-58 49.5 46.214H 1M.XSSM 4.10HD 3 N ORIGINAL DATh SOIJFXE != GS EARTHQIIAKE ASSOCIATED MXTH VOLCANISII, 8 P AN>/OR P'RRXVALS USED IN IJYPGCEHTER SOLUTIOH. 0 3.60HLg IIAGNITUDE AUTIIORXTY .- GS

'9 1857 5 PER 1980 13 46 56.0 46!225k 122.182M 4o40HD 1 N ORXGIML DATh SOLD.  !- GS EARTHQUAKE ASSOCIATED MITH VGLCANISH.

MOODWARD-CLYDE CONAN TAÃFS 23 APR 81

/ -~

'AGE'22

8 MOODMARD-CLYDE CONSULTANTS 23 APR

~

PAGE 122 6 CAT. DATE TIME(GMT) LAT . LOt!G SL INTEN MAG SH H DIS Q 8 LOCATION nND COHHEH TS NO ~ DAY-HO-YEAR HR-HIN-SEC (HM) (KH)(KH) 15 P AHD/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

3 80ML, HAGHITUDF AUT))ORITY

~

=. Gs 1858 5 APR 1980 ib 42-05.7 46.230N I+>.194M 4.90HD 2 H ORIGIHAL DATA SOURCE i= GS EARTHQUAKE ASSOCIATED WITH VOLCAHISM.

HAG))ITUDEii 4.5Hls 8 Hs COMPUTED FROM LONG-PERIOD VERTICAL COHPOMEHT.

?1 P AHD/OR P'RRIVALG USED IH ))YPOCE))TFR SOLUTIOH.

4.50HLg HAGHITUDE AUll)ORITY ~ GS 1859 5 APR 1'980 23 56 53e2 46i186H 1~.192M 3.60HL 8 H ORXGI)fhL DATA SQfffiCE . Gs EARTHQUAKE ASSOCIATED WITH VOLCAHISH. 8 5 P AHD/QR P'R)iIVALS USED IN )lYPOCEHTER SOLUTIOH. I MAGHIll.fDE AUTH(JRITY ii GS 1860 6 hZR 1980 06 41 38.6 46.226H l~i180W SalON 1 N ORIGINA) DATA SQ)JRCE GS EAR)'HQUAKE ASSOCIATED WITH VOLChHISM.

5 P AND/OR P'fd IVALS USCD IN llYPOCENTER MAGHIll)DE AU)%ORITY ~ Gs

' 1861 6 APR 1980 06:58 04.5 46.231H 122.194M 4.70HD 2 N ORXOIHAL DATh SOURCE GS EAR)X(QlfhKE ASSOCIATED WITH VOLCAHISH.

HAfJHITUDE= 3. Gf1S MS COMPUTED FROM LONG-PERIOD VERTICAL COMPOHE))T.

30 P AHD/OR P'RRIVALS USED IH IIYPOCEHTER SOLlJTIOH 4.7()HL HAGHITJJDE AUT)JQf<ITY ii GS 1862 6 APR 1980 11 08 27.6 46.225H 122e184W 3120N 2 N ORIGINAL DATA SOURCE ii GiS EARTHQUAKE ASSOCIATED WITH VQLCANISH.

5 P AHD/OR P'liRXVALS USED XH HYPOCENTER SOLUTIOH. 6 MAGNITUDE AUTHORITY i-. Gs 1863 6 AJAR 1980 15 00 38.4 46.214H 1++i184M 3.40HL 5 N ORIGINAL DATh SOURCE i-. Gs aunTJQUWX ASSQCXASED MIT)l VQLCANISH. SOLUTION..

5 P AtlD/OR P'RRIVAL8 USED IN ))YPOCEHTER SOLUTION MAGNITUDE AUTHOf)ITY ~ GS 0 1064 6 APR 1980 17 18:49,3 46.295H 121 826M

~ 3,60lfL 1 N ORIGIIJAL DATA SOURCE i" Gs EARTI-IQUhKE ASSOCIATED MITM VOLCANISH.

4 P AND/OR P'RRIVALG USED IN llYPOCENTER MAGNITUDE AUTHORITY ~ Gs 46.205H 122.188M 3. 60HL 5 N ORXGI)JAL DATA SOURCE . GS

/

1865 6 J'ZR 1980 20 26 12,4 EART)lQUAKE ASSQCXnTED MXT)>> VOLCA)JISM.

'9 P AHD/OR P'RRIVALS USED IH ))YPOCENTER SOLUT OH . I MAGNITUDE AUTHORITY =. fis 9 1866 6 APR 1980 23 22 56,2 46.218H 122 172M

~ 3.40ML 3 N ORIGI)JAJ DATA SO)JRCE i- Gs EART)(QUAKE ASSOCIATED (JITH VOLChHISH.

6 P AHD/QR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

HAGHXTUDE. AUO(DIMITY = Gs

)JQODMARD-CLYD'E COHSIJLTANTS 23 APR 81

MOO)NARD-CLYDE CONSULTANTS 23 APR 81~

W I,

PAGE 123 CAT ~ DATE TIHE (GHT ) I AT LONG SL IHTEN HAG SH H DIS 0 S- LOCATION AHD COHHENTS HO. DAY-MO-YEAR IN-HIH-SEC (HH) (KH)(KH)

.-'3 1067 6 APR 1980 23 26 01 ~ 1 46.218H 1Mo191M 4.30MD N ORIGINAL DATh SOURCE ~ GS EhtifHQUAKE ASSOCIATED WITH VOLCAHISH.

19 P AHD/OR P'IKIVAIS USED IH HYPOCENTER SOLUTION.

3.70ML HAGHITUOE AUf)(ORITY GS 1068 7 APR 1980 01 54 1R.4 46.286H I'M.151M 3,50ML 5 H ORIGIHAL DATA SOURCE ~ GS EAR11 (QUAKE ASSOCIhTED M!TH 'VOLCAHISH.

5 P AHD/OR O'RfiIVALS USED IH IIYPOCEHTER SOLIJTIOH HAGHXTUDE AI.ITHORITY ~ GS 1869 7 hPR 1900 01.57 45.0 46.215H 122.193M 4.00MD 4 H ORXGI)thL DATA SOURCE . . GS EARTHQUAKE ASSOCIATED MITH VOLCANISH.

6 P AND/OR P'EKIVAI 8 IJSED XH l(YPOCEHTER SOLUTIOH 3 50(IL, MAGNITUDE AI.JTHORITY

~ GS 1070 7 N8 1900 03 52 03e4 Rbo211N I~~i183W 3.50)(L N ORIGIHAL Dh'fA SOURCF -" GS 0 EARTHQUhKE ASSOCIhTED WXTH VOLCANISM' P AND/OR P'ZiPiXVALS USED IH IIYPOCEHTER SOLUTIOH MAGHXTUDE AU1'HORITY ~ GS 1871 7 APR 1980 04 52 53 0~ 46,194tl 122.174M = 3.50ML 5 H ORIGINA) DATA SONANCE < GS EARTHQUAKE ASSOCIATED WITH VOLCANISM, 3 P AHD/OR P'RRIVAI 0 USED IH t)YPOCE))TER SOLUTIOH.

MAGNITUDE AUTIIORITY ~ GS 1872 7 APR 1900 06 45 19.2 Rhode?5H 122.177M 4. 60NJ 4 H ORIGIHAL Dhl'h SOURCE GS EARTHQUAKE ASSOCIATED MII'H VOLCAHISH ~

24 P AHD/OR P'RRIVALS USED IH HYPOCENTER BOLUTIOH.

4.50ML, HAGHXllJDE AUTHORITY = GS 18/3 7 APR 1980 10r29:03.6 46,211H 1M.178M 3.20ML 6 H ORXGIHAL DATA SOURCE GS EARTHQUAKE ASSOCIhl'ED IJITH VOLChNISM.

5 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOH.

HAGHIll)DE AUI'tIORITY ~ GS 1074 7 APR 1900 15 05 32.7 46.234N 1~.206M R o'90MB 5 H ORI(3IHAL DATA SOURCE =- GS EARTI (QUAKE ASSOCIATED WITH VOLCANISM.

29 P AND/OR P'RRIVALS USED IH IIYPOCENTER SOLUTIOH.

4.70MLp MAGNITUDE AUTt(ORITY ~ GS o)

" '8 1875 7 APR 1900 n:50:46.4 46.210H 122.183M 3.40ML 4 H ORIGINAL DATA SOURCE i- GS

- EARTIIQUAKE ASSOCIATED WITH VOLCANISM.

.'I P AHD/OR P'RRIVAL. USED IH IIYPOCEHTER SOLUTION ~

3.40ML MAGNITUDE AUX)(ORITY GS 1876 8 N% 1980 02"10 47.1 46.217H 122.191M 3 50ML 5 H ORIGINA( Dh'Ih SO(JRCE ~ GS EARll{QIJAKE AS.OCIATED MITH VOLCAHXSH.

6 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOH ~

3. 50ML HAGNITUDE AU fit()RIl'Y GS MOODWARD-CLYDE COHSULTAtffS 23 APR 81

"."!i'qt, 9 PhGF 1?4

8 MOODWACiD-CLYDE COHSULTAN'CS 23 APR 8~ ~ S

~ ~ ~

\

PAGE 124

(

CAT. DATE Tx )ATE(GHT) LAT LONG SL xlr)EH llAG SH H nxs Q s LOCATION AHD CONNEHTS ~

No. DAY-No-YEAR HAIN-SEC (HN) (KH)(KH) 1077 0 APR 1900 04 "46 50.3 46.217H 1Ãs.104M 3,00t)L 7 N ORIGINAL DATA so'URCE Gs EARTHQUAKE hssocxhl'ED IJITH VOLCANISN.

11 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH.

3 00HL, HAGNITUDE AUll-)ORITY

~ Gs 1078 8 APR 1980 06 07 04.6 44s210H I+M.186M 4,70HB 3 H ORIGIHAL DATA SOURCE s-. GS EARTHQUAKE ASSOCIATED WITH VOLCANISN.

I 2 1 P AND/OR P AfRIVALS USED H I IYPOCEHTER SOLUT OH ~I 4.50NL I'IAGNITZ)DE AUTtloRITY Gs 10'79 0 APR 1980 12 29-14s0 46.170H 122.157M 3.20' H ORIGINA) Dhl'h SOURCE - Gs EARTHQUAKE ASSOCIATED WITH VOLCANISH.

0 P AND/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTIOH.

3.20HLs HAGHI11)DE AUTIIORXTY ss Gs 1000 0 APR 1900 13" 40 56.3 46.219H 122s176M 3.20NI 3 H ORIGINAL DATh BOURCE Gs 6 EARTHQUAhZ ASSOCIATED IJITH VOLCANISH ~

9 P AND/OR P'MTIVALS USED IH HYPOCENTER SOLUTION.

3 20HLS HAGHITUDE AUTHORITY s Gs 1001 8 APR 1900 13142:27,1 46.200H 122.100M 3.50t)L 5 H ORIGIHAL DATA SOUrsSE s= GS EARTt)QUAKE ASSOCIATED MITH VOI.CANIBN~

6 I Ala)/OR F" ARRIVALS UsED zN t)YPOCE)aER sot UTxoN.

3 ~ 50NLs I&GNITI)DE AU)'HORITY ~ Gs 1802 0 APR 1900 14R37 32.5 46.220H I~M.104M 3. 20NL 3 H ORIGZNhl DATA SOURCE S= GS EARTHQt)hKE ASSOCIATED MITH VOLCAHISN.

6 P AND/OR P'RRIVALS USED IH k)YPOCE)aER SOLUTION.

3.20NL, HAGNITUDE AUTHORITY GS 1083 0 APR 1900 15!47.29 7F 46'.210N 122 '87M 3,50NL 2 H ORIGINA) nhrh SOURCE Gs EARTHQUAKE ASSOCIATED MITH VOLCAHISN.

6 P AND/OR P'rd(IVALO USED IH l)YPOCEHTER SOLUTION.

3. iONLs HAGHITUIK AUl'l)ORITY ~ GS 1004 0 APR 1900 19-29=02.0 46.206H 122. 171M 4. 30HB N ORIGINJ DATA SOUPscE ~ Gs EARTHQUAKE ASSOCIATED WIl'H VOLCAHISN, 15 P Aim/oR I 'RC;IVALS I)SED xN HYPOCE)aER soLUTzoN 4.40ISLS HAGNITUDE AU11IORITY = GS

' 1085 8 f'PR 1900 22 10-15.4 46.232H 122s176M 3,40NL 2 N ORIGIN)J DATA sotfRcE - Gs EARl'HQUhKE ASSOCIA'CED MITH VOLCAHIS)t ~

6 P CPID/OR P'RRIVALG USED IH IIYPOCFNTER SOLUTION.

3.40))L HAGHIll)DE Al)THORITY - GS 1086 0 APR 1900 22-13 50.0 46.212N 122.191M 4.40ND H QRIGINAL DATA BOUrtcE = Gs 9 EART))QUA)w AssoczrrrEn WITH Vot CANISN.

P'r(I IVALB USED IH HYPOCEHTER SOLUTION.

17 P AHD/OR 4.20HL, HAGHITUDE AUIHollITY ~ GS MOODMARD-CLYDE COHSULTAHTB 23 APR 01 P

0

8 MOODMARD-Cl YDE CONSULTANTS 23 APR Gi A

6 PAGE 125 CAT. DATE TIHE(G)rr) LAT LONG SL IN'IEN HAG SH H DIS Q 8 LOCATION AHD COHHENTS HO. DAYH(O-YEAR HRWIH-SEC (HH) (KH)(KH) 1887 9 APR 1'980 03 25=20.5 46!198H 1>W! 183M 3. 20HL N ORIGINAL DATA SolJRCE i GS i EARTHQUAKE ASSOCIhl'ED lJZTH VOLCAHISH ~

7 P AHD/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTI Otl.

3.2OHL HAGHZTUDE AUTHORITY GS 6

1888 9 APR 1980 03-28 51.4 46 '11N 122!186M 3. 40)It 4 N ORIGXHJiL. DAlh SOUriiE i= GS EARTIJauhKE ASSOCIATED Mxxtl VOLCmnsH.

5 F'l'!D/OR P'RRXVALB USFD IH IIYPOCEHTER SOLUTIOH.

3.40HL, HAGHITUDE AIIIIIORITY GS 188'9 9 hPR 1980 07 04<<47!4 46.209N 122.183W 3.30)IL 3 H ORIGXHAL Dh'lh SOURCE i= GS EARfHQUAKE ASSQCIhlED MITH VOLCAHISH.

5 P AND/OPi P'RRIVALB USED IH t)YPt)CENTER SOLlJTIOH.

3 30HLr HAGHIlllOE AUI'HORITY !i GS

~

~

o 1090 9 APR 1980 09'01 44.2 46.216N 1>>!182M 4.20HB 3 H ORIGIHAL Dh'I'A SOIJRCF- ~ GS Q EARTHQUAKE ASSOCIATED WITH VOLCAHISH.

14 P AND/OR P ARr(IVALB USED IH IIYPOCEHTER SOLUTION.

4.20HL HAGHITUDE AlffHORXTY Gs 1891 9 APR 1980 10 13 20.3 46.220N l~ 154M

~ 4.90HD 4 H ORIGIHAl DATA SOURCE -" GS EARTIIQIiam ASSOCIATCD MXTH VOLCh)JXSH.

25 P AHD/OR P'riRXVALB IJBED IH tlYPOCEHTER BOLUTIOH.

4.5oHL, vvutxTUDE htrrHQRZTY - Gs 1892 9 PEA 1980 11 55 26.0 46.206N l~!166M 4.1OHB H ORIGINAL DATA SOIJr(CE ii Gs 0 F%THQUAKE ASBOCIhTED WITH VOLCAHISH.

7 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH 0 j

~

9 3. 40t(L ~ l".AGNXTUDE AUTHORXTY - GS

'893 9 APR 1980 22 29-03.5 46 '11H li2.180M 3.70)lt 4 N ORIGXHhl DATA SOIJRCE i GS EARTHQUAKE ASBOCIhTED WITH VOLCAHISH.

5 P AHD/OR P ARRIVALS USED IH tlYPOCEHTER Sol UTIOH ~

3.70HL! HAGHITUDE AUTHORITY ~ Gs 1894 10 APR 1980 00 25 47.9 46.220H 1X?.167M 4. 40l'IB 4 H ORXGIHAL Dh'fh SOURCE i GS ~

EARfHQUAKE ASSOCXATED MITH VOLGA)JZSH.

l S 21 P AHD/OR P'Rl(IVALO USED IH tlYPOCEt!TER SOLUl'IOH. 0 4.30HLt HAGHITUDE AUTHORITY ~ GS 189S 10 N% 1980 00 44 15.7 46.228N 1~.182M 4.70HD 4 H ORZGIHAL Dh'fA SOURCE ii GB EARTHQUAKE ASSOCIATED WITH VOLCAHISH.

29 P AHD/OR P'RRIVAI 8 USED IN tlYPOCEHTER SOLUTIOH.

4.60HL HAGHITIJDE RUT)(ORITY - GS 6 1896 10 APR 1980 11 06-23.5 49.372H 127!734M 4.50HB 10 tl ORIGI)JJ'L. Dhlh SO1JriCE !i GS Q HAG)JZTUDE- 4.OHS HB COHf!UTED FROH LOHC PERIOD VERTICAL OHPO~JT.

HYPOCEt)TER SOLUTIOH DEPTH RESTRAINED BY GEOPHYSIST!

35 P AHD/OR P't'A'IVALS USED IH IIYPOCEHTER SOLUTIOH.

lJOODWARD CLYDE CONSULTANTS 23 APR 81

~ twit!!!i

-4 !St) 4 9

PAJ!F l26

8 MOODMARD-CLYDE CONSULTANTS 23 APR 8 PAGE 126 CAT. DATE T It(E(GNT) LAT ~ LONG SL I)TTEH NAG SN H DIS Q 8 LOCATION AHD CONNEHTS HO. DAY+%-YEAR HR.-NIH-SEC (NN) (KN)(KN) 1897 10 APR 1980 14 16-15.3 46.217H 122i177M 4,70NlI H ORIGIHAL DATA SOURCE>> GS F~RTIIQUAIX ASSOCIATED WITH VOIXAHISN.

NAGHITUDE>> 3,3NS NS CDNPUTED FRON LONG-PERIOD VERTICAL CDNPD)IENT.

23 P AHD/OR P'RRIVALS USED IN IIYPOCEHTER SOLUTION.

4,50NLr NAGHITUDE AUTHORITY>> GS 1898 10 APR 1980 21 08 26.2 46.211N ir're 182M 3.70NI 4 H ORIGIHAI Dh'fA SOURCE>> frS EARTHQUAKE ASSOCIATED MXTH VOLCAHISN.

6 P AHD/OR P'PRIVALS USED IH IIYPOCE)TIER SOLIJTIOH,

3. 70NL i4%NITUDE AlI fHORIl'Y GS ~

1899 11 APR 1980 00-"51:48.3 46.209H 1~.181M 3 a40NI 4 H ORIGINAL DATA S'OIJRCE>> GS 0 EARTHQILIKE ASSOCIATFD WITH VOLCAHISN.

6 P AND/OR P'RT;IVALS USED IH tlYPOCEHTER SOLIJTIOH.

3. 40NL, NAGHITUDE AUTHORX1'Y GS 1900 11 APR 1980 01 45 05.6 49.366H 127o705M 4 90I9) .10 a N ORIGIHAI DATA SOIJRCE>> GS NAGt!XTUDE>> 4.9NS ILS CONIWJTED FROtI LONI I ERIDD VERTICAL CD)IPOHENT.

HYPOCEtlTER SOLUTIOH DEPTH RESl'RAIIIED BY GEOPHYSIST.

92 P AHD/OR P'RRIVALS IJSED IN IIYPOCEH1ER SOLUTIOH ~

1901 11 APR 1980 03 36 04.3 46.214H 122'.179M 3.20NL H ORIGIHAI DATA SOURCE>> GS EAR1HO(LIKE ASSOCIAl'ED WITH VOLCAHISN.

P A)ID/Ofi P ARRIVALS USED IH HYPOCEH1ER SOLUTIOH 3.20NLr NAGHITUDE AU1'HORXTY>> GS

' 1902 11 APR 1980 04 07 33.0 49.39'127.745M 4e30ND 10 H ORIGIHAI DATA SOIJRCE>> GS NAGHX'llJDE>> 3.6NS NS COMPUTED FROl3 LON('ERIOD VERTICAL CONPOHEHT.

HYPOCENTER SOLUTIOH DEPTH RESTRAIHED BY GEDPHYSIST.

31 P AHD/DR P'RRIVAl..8 USED IH IIYPOCEH1ER SOLUTIDH.

1903 11 APR 1980 04 45 22.1 46.234N 122.171M 4.70ND 4 H ORIGIHAL DATh SOURCE ASSOCIATED MITH VOLCANISN.

GS'ARTHQUAKE 24 P AHD/OR P'RRIVALS IJSED IH IIYPOCENTER SOLUTIDH,

4. 40NL NAGHXl'UDE AUfHDRITY ~ GS

46. 214 H 122 191IJ 4.30NB H ORIGINAL DATA SOURCE>> GS

'8 1904 11 APR 1980 07 42101mB s EARTIIQUAKE ASSOCIATED WITH VOLChNISN.

12 P AHD/OR P'RRIVALS USED IH IIYPOCE)ffER SOLUTIOH.

3 s 60NL r I L)GHITUI)E A'UTHDRITY>> GS 1905 11 APR 1980 14 52-25.1 46.210H 122.184M 3sbONL 3 H ORIGIHAL DATA SOIJPiCE>> GS EARTIIQUhKE ASSOCIA'TED MITH VOLChNXSN.

7 P AHD/OR P'RI;IVALS USED IH HYPO(~TER SOLUTIOH.

3.60NL, NAGHITUDE AIITHORITY - GS 9 1906 11 APR 1980 18 01 10eb 46.206H 122i180M 3.70tg 1 H ORIGINAL DATA SOURCE>> GS EARTHQUAKE ASSOCI!TTED MITH VDLChNIGN.:

WDODMAT'D-CLYDE CONSIJLTAHTS 23 APR 81 rr~ i 4I'

MOOILLJAr(IL-CLY)%'ot(BULTA)LTS APR 8~ ~ ii ~ ~

o PAGE 127 CAT. DATE TINE(GHT) LAT LONG SL IHTEN HAG SN H DIB Q 8 LOCATIO)l AHD COHHEHTS HO ~ DAY~-YEAR HR-HIH-SEC (HN) (KH) (KN) ~

9 P AND/OR P'RRIVALS USED IN Sol&TIOH.

3,70)L> )LAGtJITUDE AUTHORXTY i'B HYPOCEHTER 1907 11 APR 1980 21 56 31.2 46.209H 122iibBM 3.50HL 4 H ORIGIHAL DATA SOLIRCE = GS EARr)LQuAKE AssocIATED Mz'r)L VOLChtJXSN.

5 P AND/OR P'PA'IVALS USED IH HYPOCENTER SOLUTIOH.

5.50NL NAGHITUDE O'LIT)LORITY ~ GS 1908 il APR 1980 23 52 Ooi 0 46 i 2~ 122 ~ 16 lM 4.40ND . 3 H ORIGIHAL DATA SOURCE i= GS EARTHQUAKF hSSOCIAI'ED MITH VOLCANISH~

32 P At(9/OR P'fiRIVALS USED IH )IYPOCEHTER SOLUTIOH.

4.80IIL, I'IAGHITUDE ALllHORITY ~ Gs 1909 12 APR 1980 05 16 22.3 4bi224N 122>.180M 4.30ND 5 H ORIGINAL DhTA SOLI)'icE " Gs 6 EART)IUAKE ASSOCIATED MXTH VOLCANXBN.

29 P A"LD/OR P ARRIVALS U ED IH I IYPOCE))TER SOLUTIOH 4 20NL> NAGNI11IDE AUTfloRITY ii Gs 1910 12 APR 1980 15:08 11.8 46 214N 1~.180LJ

~ 3.80ND ,1 H ORIGINAL DATh SOURCE GS EART)(QUAKE ASSOCIATFD MITH VOLCAHISN.

8 r AND/oR r 'PiRIVALB usED X)J )LYPOCE)JTER snLUTInN.

3. 60NL HAGHIl'UDL AUl'Hof'ITY GS 1911 12 APR 1980 20 45:34.2 46.214H 122 180M

~ 3. 60)g 1 ORIGI)JAL DATA SOLIRCE GS EARL')LQLIAKE hf>SSOCIATED MITH VOLCAHISH.

6 P AHD/OR P ARRIVALS USED IH )LYPot~JTER SOLUTION 3.60NL, HhGHITUDE'lfnlORXTY ~ Gs 1912 12 APR 1980 21 25 19i7 4bi220N 1>'>i184M 3,40NI 2 H ORIGINAL DATh SOURCE ii GB Q EARTHQUAKE ASSOCIhTED LIITH VOLCANISN~

5 P A)JD/OR P'IRIVALS USED IH )lYPOCENTER SOLUTIOH.

3 40NL> HAGHIllIDE AUTHORITY

~

ii Gs 1913 12 APR 1980 = 22?29 12.0 4baZKN 122i181M 4.20IS 5 H ORIGIHAI DA'I'A SOURCE >i Gs EARTHQURK ASSOCIATED LJXTH Vol ChHISN.

21 P AHD/OR P'RRIVALB USED IH HYPOCENTER SOLUTIOH.

4.30NL> NAGHITUDE AUTILORITY ~ Gs 1914 13 APR 1980 01 25 56.1 46.214H 1~.182LJ 4.20ILD 2 H ORIGXHAL DATA SOLIRCE ~ GS EARTHQUAKE ASSOCIATED MIl'H VOLCAHISH.

9 P AND/OR O'RRIVALB USED IH HYPOCEH1FR SOLUTIOH.

3.60NLt HAGHI1'UDE Al.ll')(ORITY ii GS 1915 13 APR 198O 03=03r23.0 46.m2)J 122.201M 3.50)a k ORXGIHAL DA'fA SOURCE - GB 0 EARTHQUhKE ASSOCIATED MITH VOLCANISN.

5 P A)LD/OR r ARRIVAI.B usED IN )LYPt)CENTER sOLuTznN.

3.5()NL, HAGHITLIDE AllllloRITY GS 1916 13 APR 1980 06 13-18.5 46.213H 1>> i193M 3eBOND 3 H oRzGIHAL wrA SOURCE - GB EARl'HQUAKE ASSOCIATED LJXTH VOLCAHISN.

9 8 P AHD/OR P'RRIVALS USED IH )lYPOCEHTER SOLUTIOH.

~ 1 3.60NL> HAGNITUDE Aul'ILORITY ~ Gs MOODLJARD-CLYDE COHSULTAHl'S 23 APR 81 PAGE 'I'.>P)

~

Q 8 MOODMARD-CLYDE CONSULTANTS 23 APR 8 PAGE 128 CAT. DATE TINE(GHT) - LAT LONG SL IIFFEH HAG Stl H DIS Q S LOCATION AHD COHHEHTS HO ~ DhYWO-YEAR HR-HIH-SEC (HH) (KH) (KH)

'3 H ORIGIH~J DATA SOURCE ~ GS 1917 13 fJ% 1980 07 39 32.2 46.219H 122.184M 3. 10HL 2 EARTHQUAKE ASSOCIhTED 5 P AHD/OR MIlll VOLCAHISH.

P'RRIVAI S USED IH IIYPOCEH'fER SOI UTIOH.

o[

3 10HL HAGHITUDE AUTHORITY .= GS

~

0 I 1918 13 APR 1980 08r36:18.8 46.2?2H i>M> 176M 4.70HD 1 H ORIGINAL DATA SOIIRCE r> GS EARTHQUAKE ASSOCIATED MITH VOLCAHISII.

28 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

4.50HLr HAGNITUDE AUTIFORITY ~ GS 1919 13 APR 1980 09 40:46.5 46.220N 1K? 178M

~ 3. 50HL 2 H ORIGIHAL DATh SOURCE r GS EARTHQlLIKE ASSOCIATED MITH VOLCAHIStt.

6 P AHD/OR P'fd?IVAL>S USED IN HYPOCENTER SOLUTION 3.50ML, I'L>IGHIlUDE AU FIIORITY GS

~

1920 13 APR 1980 12 06 20.7 46.2++H 1>W>171M 3.50m H ORIGI)NL DATA SOIFRCE ~ GS EARTHQUAKE ASSOCIATED IJITH VOI CAHISH.

7 P AIID/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3.50i'IL, HAGHITUDE hUTHORITY ~

GS 1921 13 APR 1980 17 35 41.8 46.211N 1M>191M 4.20tID 4 N ORIGINAL DATA SOURCE r GS EARTIIQUAKE AS. OCIATED IJITH VOLCAHISH.

15 P AtlD/OR P'P>I?IVALS USEI) Dl HYPOCENTER SOLUTIOH 4.10HLr HAGNITUDE AUTHORITY ~ GS 1V~~ 13 I'PR 1980 18 58 21>7 46>+~+~ 1~>174M 4.00HD 4 H ORIGINAL DA'Ih SOURCE GS EARTtlQUAKE ASSOCIATED IJITH VOLCAIIISH.

17 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION.

4,3011Lr I'AGIIITUDE AUTHORITY rr C>S 1'923 13 APR 1980 23 57 32.1 46.216H 1~>175M 3.60HL 3 N ORIGItIN DATA SOURCE r GS 9 EARTIImIAKE ASSOCIATED MITH VOLCAtlISH ~

7 P A)ID/OR P'RRIVALS USED IH IIYPOCE)ITER SOLUTION.

3. 60HL HAGHITUDE AUAIOI?ITY GS 1924 14 APR 1980 03 01 02.5 46.210H 1~.189M n,ootID n H ORIGINAL Dhfh SOI)f?CE r. GS EARTHQUAKE hSSOCI.')TED WITH VOLCAHISH.

15 P AHD/OR P ARRIVALS USED IH IIYPOCEHTER SOLUTIOH ~

3.701%Lr HAGtlITUDE AUTHORITY ~ GS 1925 14 FPR 1980 06"53 38.9 46.2~>H 1M.174M 4.40IID 3 H ORIGINAL DATA SOUFiiE ~ GS EARTtlQUAKE hSSOCIATED IJITH VOI.CAHISII~

12 P AHD/OR F>r ARF(IVALS USED IH HYPOCE)ITER SOLUTION.

3.70HL tL>IGHITUDE AIJfHORI1'Y - GS 1926 14 APR 1980 06~59 22,3 46.223H 122.188M - '.70)ID n , N ORIGINAL DATA SOURCE r. GS EARTIIQIL>IKE AS. OCIATED WITH VOLCAHISH.

34 P AHD/OR P'F?RIVAL.S USED IH HYPO(MITER SOLUTIOH ~

4. 50HL Hh(FNIl'UDE AUTIIORII'Y - GS WOOIFMARD-CLYDE COHSULTAHlS 23 APR 81 yr

0 MOODWARD-CLYI)E CONSULTA)ffB 23 APR 8~

PAGE 129 CAT. DATF TI)fE(GHT) LAT LONG SL I)ffEH HAG SH H DIS Q 8 LOCATI OH AHD COHHEHTS HO ~ DAY-HO-YCAR Hf)-HIH-SEC (HH) (KH>(KH>

1927 14 APR 1980 08 42-11.6 46.213H 1>>.168M 3eROHL 3 H ORIGIHAL DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED WITH VOLCANISH.

5 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3.40N.p HAGNITUDE AUl'HORITY ~ GS 1928 14 APR 1980 12-28-43.6 46.219H 1>>.176M 4.20HD n H ORIGIHAL DATA SOURCE GS EARf)IQUAIW ABSOCIATEI) WITH VOLCANISH.

16 P AHD/OR P'RRIVALS USED IN )IYPOCEHTER SOLUTIOH..

3.90HLp HAGHITl)DE AUTHORITY ~ GS 1929 14 f'PR 1980 13 49 04.1 46.209H 122.190ll 4.80HD 3 H ORIGINAL DATA SOIJRCE . GB EARTHQI)AKE ASSOCIhTED WITH VOLCAHISH.

HAGHITIJDE= 5.3HS HS COHPU)ED FROH LONG-PERIOD VFATICAL COHPONEHT ~

30 P ANIJ/OR P'RRIVALB USED IH HYPOCEH1ER SOI UTION.

4.7OHL HAGHITUI)E AUTHOf)ITY ~ GB 1930 14 APR 1980 15?30.30.6 46.233H IM,205M 3,40N 1 H ORIGIHJ'hfh SOURCE ~ GS

\ EARTIIQUhKE ASSOCIhTED WITH VOLCANISHo 7 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOH.

3.40HLg HAGHITUDE AUI'IIORITY => GS 1'931 14 APR 1980 22 28 ~&.3 46.225N 12>>2a190M 3. 40N 2 N ORIGINAL DATA SOIJRCE ~ GB EARTHQUAKE ASSOCIATED MITH VOLCANISH ~

4 P AND/OR P'RRIVALI- USED IH HYPOCENTER SOL)ffION 3,40HLy HAGHITUDE AUfHORITY ~ GS 1932 15 APR 1980 00 37N05,4 46.217H I>'>,158M n.ooN n N ORIGINA'ATh SOURCE ~ GB 9 EART))QUAKE ASSOCIATED MIl'H VOLCAHISH.

8 P AND/OR O'RRIVALB USED IH HYPOCENTER SOLUTIOHa 4.00HL HAGHITUDE AlfTHORITY .= GS 1933 15 APR 198o o2-.26.-18.6 nb.233H 1>>.210M 4.20HD 1 H ORIGIHAL DATA SOIJRCE ~ GB EARTIIQUAKE ASSOCIhlED MIl'H VOLCAHISH.

11 P Al')D/OR P'MIVALS USED IH HYPOCENTER SOLUTIOH, 3 /ON r HAGHITUDE AUTIIORITY ~

~ GS O 1934 15 APR 1980 06 58 22 ' 46o221N 122o198M 4 50HD 6 H ORIGINAL DATh SOURCE .. GS EARTHQUAKE ASSOCIhTED MITH VOLCAHISH.

24 P AND/OR P'ICRIVALB USED IH IIYPOCENTER SOLUTlOH ~

4.3OHL ~ HAGHITUDE AUTIIORITY GS 1935 15 APR 1980 07:35 25.8 46.216N 1'>>.196M 3.90HD R N ORIGINAL Dhl'h SOURCE ~ GS EARTHQUAKE ASSOCIATED WITH VOLCANISH ~

7 P AHD/OR P'f5QVALB USED IH l)YPOCEHTER SOLUTIOH.

3. 40HL, HAGHIlllDE h(Jl'HORITY GS 1936 15 APR 1980 11-M~53e7 46.200H 1>>.188M 3.70HL R H ORIGINAL DATA SOURCE =. GS EAR fHQUhKE ASSOCIATED MITH VOLCANISH.

9 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTION.

3.70ML, HAGHIllJDE AUTHORITY GS MOODWm-CLYDE COHSULTA))TS 23 APR 81 rhrE )30

6 MOODMARD-CLYDE CO)J~~Tht)TS 23 APR 'l g ~ ~

PACiE 130 CAT. DATE TItfE(GMT) LAT LONt) Bl- IHTEH MAG SM H DIB Q S LOCATION hND COMMENTS HD. DAY-MO-YEAR Ht)-MI)t-SEC (t)M) (KM)(KM) 1937 15 APR 1980 13-56 24.7 46.214M 1>M.193M 3. 401)L 3 H ORIGIHAL DATA SOURCE i-. GS EARl'HO(LAKE ASSOCIhTED MITH VOLChNIBM.

6 P A)JD/OR P'RRIVALS U ED IH HYPOCEHTER SOLUTIOH.

3.40ML, MAGNITIJDE AUTHORITY . GS 1938 15 APR 1'980 15-2/ 51.3 46.216H 122.190M , 3.70MB 4 H bRIGI),AL DATA DURCE CiS EARTHQUAKE ASSOCIATED MITH VOLCANISM~

13 P AND/OR P'RT,'IVALB USED IN HYPOCENTER SOLUTIOH, 3.301(Lg t4AGHITUDE Atfl'HORITY i= GS 1939 15 APR 1980 16".12:04.8 46.212k 122.182M 3. 50M) 1 H DRIGIHAL DATA SOURCE n GS EARTHQUAKE ASSOCIATED MITH VDLCAHISM.

7 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH.

3.501(L, t>GHITUDE AUTIIDRITY GB 1940 15 AN 1980 17:54."54.3 46. i20H 122,176M  ; 4.90MB 3 H ORIGIHAL Dh'fA SOURCE = GB 0 EhRTHQUAKC ASSOCIATED MITH VOLCAHIStt.

I MAGH I UDE. 3. 6MB MS CON%TED I'ROM 1.0t16"PERIOD VERTICAL COMPO)KHT.

34 P A)JD/OR P'RI IVALB USED IH HYPOCENTER SOl-lJTIOH.

4.70ML, MAGHIIIJDE AUT)(ORI'TY =. GB 1941 15 APR 1980 21".w 49.0 46.427H 121,929M 4. 101'ID 5 H ORIGIH)L Dh'fh SOURCE ~ GS EARTtlQUhKE ASSOCIATED MITH VOLCAHISM.

HYPDCElfl'ER SOLUl'IDH DEPTH f(EBlRAI)JED BY GEOP)IYSIST.

11 P AND/OR P'RRIVALS )JSED IH HYPOCE)ITER SOLUTIOtl.

4.00MLg MAGNITUDE AUlHORI'I'Y ~ GB 1942 16 APR 1980 01 54 45.9 46.196N 1>>.197M 3.50ML 6 H ORIGIHAl DATA SOURCE i GS EARTHQUAKE ASiSOCIATED IJITH VOLCAHISM.

4 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTION.

3.50ML, MAGNITUDE AUTltORITY =- GS 1943 16 APR 1980 04 58 57 4 46.215H 1~>.1L% 3.40ML 4 H'ORIGIHAL DA'fh SOURCE ~ GB 9

~

EARTHQUAKE ASSOCIATED MITH VOLChNISM~

7 P AHD/OR ) 'RI'IVALS USED Itt HYPOC&>TER SDLUTIOH 3.40MLr MADHITUDE AUTHORITY ~ CiS 1944 16 APR 1980 06.25 52.5 46.ÃlH 122.196M 4 10MB

~ 4 H ORIGINAL DATh SDURCE GS EARTHQUAKC ASSOCIhTED MITH VOLCA)JISM.

8 P AND/OR P'R) IVALB USED IN )IYPOCEJJTER SOLUTIOH.

3.20ML, MAGNITUDE AITTHORITY - GS 1945 16 N% 1980 11 47 28mb 46.214M 1~ ~ 188M 3oGOMB 3 H ORIGIHAL DATA SO()RCE . GB EARTHQUAK¹ ASSOCIATED MIl'H VOLCAHISM.

9 P AHD/OR O'FNIVALB USED IN HYPOCEHTER SOLUTIOH.

3 iOMLg MAGHITUDE AUlHDRITY ~ GB

~

1946 16 APR 1980 15-22-05,6 46.~")H 122.175M 4.90MB 3 N ORIGIHAL Dhl'h SOURCE ~ GB EARTIIQLLA¹ ASSOCIATED MITH VOLCANISM.

37 P AHD/OR P'RRIVALB USED IH HYPOCEHTER SDLUl'IOH.

MOODMhRD-CLYDE COHS)JLTAHTS 23 AN 81

MQODMAAD-CLYDE CONSULTAwrs PhoiE 131 chr. DhrE TxNE(GHT) LONti SL IHTEN NAG SN H DIS 0 8 LOCATIOH AND CONNEHTS No. DAY-ljo-YEAR HR-NIH-SEC (NN) (KN) (lol) 4 ~ 90NLg NAGNXTUDE AUTHORITY ii GS 1947 1fi APR 1980 15 40 "23.5 46.+~PN 1M.167M 4.80NB 4 N ORIGIHAL DA'fh SOURCE ~

GS EAATEEQUAKE A . OCIATED WITH VOLCANISN.

21 P Ato)/OR P'RRIVALS USED IN EIYPOCENTER SOLEJTION.

4.SONLY NAGHITUDE AUTHORITY ~ Gs 1948 16 APR 198Q ~<<46.24 9 46.219N 122.181M

~ 4 o 301% 1 N ORIGINAE DATA SO(JACE ii GS EARTHQUAKE ASSOCIATED EJITH VOLCAHISN.

14 p AEJD/QR p'RRxvAE s usEn IN>>YpocE)rrER soLuTION.

3 50tjLg NAGNITUDE AUrktoRITY n Gs

~

1949 17 APR 1980 04 26:lb.0 46.219H 122.190M 4. 10ND N ORIGIHAL DATA So~i i-. GS EARTltotlAKE hsSOCIhl'ED ll'ITH VOLCAHISH.

29 P Akllt/OR P'fRIVALS USED IN EEYPOCENTER SOLUTION ~

4.30NL, NhfiNITltDE AUBIOAITY - Gs e 19M 17 APR 1980 Q7 06:47,1 46.204H 122.173M 4.00NB 1 H OAIGXNAI DATh SOURCE GS EARfHQtlAKE ASSOCIATED MI'fH VQIAANISN ~

NAGNDlJDE< 3.3NS Ns CQNPUrED R:oN LONG-PERIOD VERTlcht CQNPQNEHT.

11 P AND/OR P'RRIVALS USED IN ttYPOCEN'EEA SOLl)TION.,

3.50tjL, tjAGNITUDE AUTHORITY Gs 1951 17 APR 1980 08 58 44.8 46.210H x~o193M 3.30NL 2 N OAIGIL"J Dh'fh Sot)ACE i GS EARTEEQUAKE ASSOCIATE) MITH VQLCANISN.

6 P Aktn/OR P'RRIVAl S llSED IN HYPOCENTER SOLUTION.

3. 30t(L NAGNITUDE AUTHORIl'Y Gs 1952 17 APR 1980 17 43 >>.6 46.221N 122.184M 4.70ND 3 H OAIGlktra nhrh st)URCE Gs EARTEIQUAKE hsSOCIATED MITH VOLCAHISN~

NAGNITUDEi- 3. 6NS Ns COI1PlJrED FRON I OHG-PERMD VERTICAL CONPOHEHT.

26 P AHD/OR P'RRIVALS USED IH EEYPOCENTER SOLlJTIOH.

4.hatjL, NAGNITUDE AtlrltQRITY - Gs 1953 18 APR 1980 00 51 Obso 46m~M 122.1' 3.70ND 1 H ORIGINAL DATA SOURCE i: GS EARTEJQUAKE ASSOCIATED WITH vot.cANxsN.

9 P Akfn/oR P'RRIVALS USED IN EIYPOCENTER SOLuTION,

3. 40NL NAGNITUDE AUTHORITY ii GS 1954 18 APR 1980 00 53 40.5 46.217N 1'++,178M 4.70ND 2 N ORIGINAL DATA SOURCE = GS EARTEIQUhKE ASSOCIATED lJITH VQLCANISN.

16 P ANIJ/OR r" AM(IVALS lJSED IN EEYPOCENTER SOLUTIOH ~

4.40NLt NAGHI'rUDE AUTttoRITY ~ Gs 1955 18 hPR 1980 02 24 31.3 46.210N 122.194M 4,10ND 3 H ORIGIHAL Dh'I'h SOURCE ~ Gs EARTHQUAKE ASSOCIATED WITH VOLCANISN.

8 P ANlk/OR P ARRIVALS USED IH HYPOCENTER SOLUTIOH.

3 40l(Ly t(AGNITUDE Au))JQRITY ii Gs WOODMARD-CLYDE Cot<SULTAI4TS 23 APR 81 PAGE= J 37

~ '>>

e MOODWARD-CLYDE COH~MLTAtffS >> g

~

PAGE 132 CAT. DATE TINE(GHT) LAT LOHG SL IHTEN HAG SH tl DIS Q S LOCATIOH AHD COHHEHTS HO. DAY-HO-YEAR HR<hltt-SEC (III) (KH)(KH) 0 I

1956 10 APR 1980 08 28 09.2 46.219H 1Ã>>186M 4.30HD 3 H ORIGINAL DATA SOURCE ~ GS Q . EARllIQUAKE hGSOCIATED LIITH VOLChHISH.

I 10 P AHD/OR P'FT(IVALS USED IH tlYPOCEHTER SOLUTIOH.

3>> 40HLg HAG'HITUDE AUTHORITY ~ GS 1957 18 APR 1980 09 23 39.1 46.212H 122,186M 3.90HD 3 H ORIOIHAL Dhfh SOlJRCE . GS EARTHQUAKE ASSOCIATED MITH VOLMNIGH.

7 P AHIJ/OR P'RRIVALS USED IN HYPOCENTER SOLUTION ~

3.70HL ~ HAGNITUDE ALJTHORITY ~ GS 1958 18 APR 1980 10 45:22.4 46.217H 122.187LJ 4 00ttD

~ 3 H ORIGIHAL DATA SOUFLCE>>- GS EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

7 P AND/OR f ARRIVAI G USED IN IIYPOLmfTER SOLUTIOH.

3.40HLp HAGNITLIDE ALJTtLORITY ~ GS 1959 18 APR 1980 12 15 43>>9 46.229N 122>>183M 3>>nOHL 4 H ORIGINAL DATA ~WKE>>-. GS 8 EARTHQLJAKE ASSOCIATED MITH VOLCAHISH.

5 P AttD/OR P'Rf;IVALS USED IH HYPOCEtffER SOLUTIOH.

3 40HL

~ HAGNIlllDE ALffllORITY = GS 1960 18 JZR 1980 13.08:29,4 46.210H 1~,178LJ 3.60HI 4, H ORIGIIOL Dhl'A SOLJRCE - GB EARTHQUAKE hSGOCIhl'ED WITH VOLCAHIBH.

5 P A)ID/OR P'CRIVALS USED IH tlYPOCEtlTER SOLUTIOH ~

3.60HLy HAGNITUDE AUTtLORITY ~ GS 1961 18 APR 1980 15 53-13.9 46>>208H 122>>203M 3.30t n H ORILJIHAL DATA SOURCF -" GB EARTIIQUht>>E ASSOCIAlED MITH VOLCAHIBH, 7 P AHD/OR P'WiIVALS USED IH llYPOCEHTER SOLUTIOH ~

3 ~ 30HLy HAGNITUDE AUTHORITY =. GS 0 1962 18 APR 1980 19=16-25.4 46.215H 1~>>197M 3.50HL 5 H ORIGIttAI DATA SOl)f>>>>E = GS 0 EhRTHQUAKE ASSOCIATED LJITH VOLCAHISH.

5 P AND/OR P'fRIVALG USED IN HYPOCEtffER SOLUTION.

3. i0HL~ HAGHIl'LJDE ALfAIORITY GS Q

1963 18 fFR 1980 21 16 02.2 46>>220H 122>>185M 4.80HTJ N ORIGIHAL DATA SOURCE . GS EARTHQUAKE ASSOCIATED llITH VOLCANISH~

36 P AHD/OR P'RRIVALS USED IN HYPOCEHTER SOLUTIOH.

4 ~ 70ILLp HAGHITUDE ALJTIIORITY ~ GS 1964 18 APR 1980 22-27aln.5 nb>>221N 122>>180M 4.50HD 4 H ORIOINJ'J DhTA SOIJRCE ~ GS EARTILQLIAKE ASSOCIATED WITH VOLCAHISH.

26 P AHD/OR P'RITIVALS USED IH HYPOCEttTER SOLUTION.

4 10HLg ILAC>>NITUDE>>LUllIORITY>>-.GS

~

1965 19 APR 1980 02 37 26.3 46.216N 1++.184M n.10HD H ORIGINAL Dhlh SOURCE>> GS ~

EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

8 P AHD/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH.

3.60HLy tthGHITUDE AUI'tlORITY ~ GS I 9 MOODMARD-CLYDE COHSULTAtlTS 23 APR 81 J

Q>>

~ '

MOODMARD-CLYDE COHSIJLTAHTS 23 APR~ 'i g ~

A PAGE 133 CAT. DATE TIHE(GHT) LAT LONG SL IHTEH HAG SH H DIS 0 S LOCATION AND COH)IEHTS HO. DAY-HO-YEAR HR-HIH-SEC (HH) (KH)(KH) 1966 19 APR 1980 06 03 12.6 46.214H 122.194M 3. 60t9 2 H ORIGINAL DATh SO~i ii Gs EARTIIQUAKE ASSOCIATED WITH VOLCAHXSH.

7 P AND/OR P'RRIVAI S USED IH HYPOCENIER SOI.UT ION.

3 ~ 60HL, HAGNITUDE AICCIIORITY Gs ~

1967 19 APR 1980 08:09 18.1 46.219H 122.191M 4.00HB 3 N ORIr.lNAL DnTA SOImCE r ris EARTHQUAKE ASSOCIhlED MITH VOLCANISH.

12 P AHD/OFi P'RRIVALS USED IN klYPOCEHTER SOLIJTIOH.

3.80HL, HAGHITUDE AUl'HDRITY =- GS 1968 19 hPR 1980 14 53-14.5 46.226H 122,186M 3,60)9 1 ~

N Or"IGINA'ATAsolmCE . ris EARTHQUAKE ASSOCIhlED MXTH VOLCAHISH.

7 P AHD/OR P'MIIVALG USED IH HYPOCENTER SOLUT ION .

3 60HLt HAGHITUDE AUTHORITY ii GS 1969 19 APR 1980 17 48 35.7 46.226H 1~.171M 4.30HB 3 ORXGIIIAL Dhrh SOImCE - Gs 8 EARTHQU~ ASSOCIATED UITH VOLCANISH ~ 0 15 P A)ID/OR P'Rf'IVALS USED IH HYPOCENTER SOLUTION.

3.90HL HAGHXTUDE AUI'HORITY = GS 6 i 1970 19 APR 1980 19 07 51.2 46.~~>I IK?o198M 3.90HD 5 N ORIriIHAL BACA SOURCE ~ Gs EiIRTHQUAKE ASSOCIhl'ED IJITH VOLCAHISH.

13 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLIJTIOH.

3.80HL, HhGHIllIDE AUI)(ORITY = Gs 1971 19 APR 1980 19w17 58.3 46,205N 122 172M

~ 3.50III 2 H ORIGItthl DATA SOURCE r GS I9 EARTHQUAKE ASSOCIATED l)X1't( VOLCAHISH~

10 P AHD/OR P ARCYIVALS USED IH IIYPOCEHTER SOLUT ION.

3.50HL HAGHIl'UDE AUTHORITY -" Gs 6 1972 19 APR 1980 20 41 38.7 46.213H I>+.178M 3.40HL 2 H ORIGINAL DATA SOURrE . Gs O EARl'HQUAKE ASiSOCIhTED MITH VOLCANISH. 0 10 P AHD/OR P'RRIVALS USED IH IIYPOCE)ITER SOLUTIOtt.

3.40HL, HAGHX11IDE AUTHORITY: GS 1973 19 APR 1980 22 28 28,2 46 226H 1~.177M

~ 4. 70HB 3 H ORIGINAL DATA SOURCE ~ GS EARl'IIQ(IAKE ASSOCIATED IJITH VOLCAHISH.

31 P A)JD/OR P'RRIVALS USED IN IffPOCF~ SOLUTION. Q 4.60HLi HAGNITUDE AUI'HORXTY ~ GS 1974 20 APR 1980 00 13 41.2 46.20SH 1>>.183M 4.10HB 4 H ORIGIHA'ATh SOURCE Gs

'I EARTHQUAKE ASSOCIATED MITH VOLCAHISH.

9 P A)ID/OR P'RIIIVALG USED IH HYPOCENTER SOLUTION ~

3,40HL, HAGHITIJDE AlfflIORXTY - Gs 1975 20 APR 1980 04 53 02.6 46.220H 1W.ISGM 4. 10tlB H ORIGIN/'0 DhTh SOURCE r liS EARTHQUAKE ASSOCICCCED IJITH VOLCAHISH~ Q 14 P A)ID/OR P'RRIVALG USED IH HYPOCEHTER SOLUTXOH.

3. 70HL tihGHITUDE AUl IIORITY Gs ~

MOODMAl&-CLYDE CONSULTANTS 23 APR 81

MOODWARD-CLYDE CONSULTANTS 23 APR ~

PAGE 134 CAT. DATE TIHE(GHT) LAT LONG SL INTEN NZi S(4 H DIS Q S LOCATION AND COHHENTS tJO, DAY-HO-YEAR HR-HIN-SEC (HH) (KH)(KH>

Q 1976 20 APR 1'980 05-04 50.3 46 219N 122.194W

~ 4. 00t(D N ORIGINAL DATA SOURCE ~ GS EhRTHQUAKE ASSOCIATED MITH VOLCANISH.

13 P AND/OR P'RRIVALS USED IN tfYPOCENTER SOLUTIOtl 3 ~ 80HLy JSlGNITUDE AUTHORITY ~ GS 1977 20 APR 1'980 08 08 08 7

~ 46.226N 1'22 190M

~ 3.90HD 1 N ORIGIN('J DATA SOURCE ~ GS EARTHQUAKE ASBOCIhlED WITH VOLCANISM.

ll P AND/OR P'RRIVALS USED IN HYPOCEt(TER SOLUTION.

3.60HLg HAUNITUDE AUTliOftITY ~ GS 6 1978 20 APR 1980 10 25 25.2 46.218N 122o172W 4, 10HD 2 N ORIGINAL DATh SOURCE ~ GS EARTIIQUAKE ASSOCIATED WITH VOLCANISH~

17 P At(D/OR P'RRIVALS lJSED IN tlYPOCENTER SOLUTZON.

4 ~ 00t(L, HAGNITUDE AUTJJORITY . GB 1979 20 f'ZR 1980 11-59-31.1 46.214N 222e189M 4,10HD 3 N ORIGXNhl DArh SOURCE . G.

8 EARTHQUAKE ABSOCIhTED WITH VOLCANISH.

10 P AND/OR P'RRIVALB USED IN HYPOCENTER SOLUTION.

3.60HL, HAONITUDE hlJTIIOftZTY ~ GS 1980 20 N% 1980 13 29 24.3 46a213N 122o186M 3.80HD 3 . N ORIGINAI DATA SOlJRCF .. GB EARTHQUAKE ASSOCIATED WITH VOLCANISH.

8 P AND/OR P'RRIVAl 8 USED IN HYPOCEtffER SOI UTION.

3 ~ 50HL HAGNZT(JDE AUfHORITY - GS

@ 1981 20 APR 1980 17"M 34.1 46.213N 122.190M 3e70tu) 3 N ORIGIt(N DATA BOURCE = GS EARTt(QUAKE hSSOCIATED l)ZTH VOLCANISM.

7 P At(D/OR P'Rf(IVAI 8 USED IN HYPOCEtffER SOLUTIONa 3.30HLg HAGNITUDE AUTllORITY ~ GS 1982 20 APR 1980 19 19 33.0 46.215N 1 >>,185M 4.80HD 5 N ORIfJIt(AL DATA SOl)RCE ~ GS 4 EARl'HQUAKE ASSOCIhTED WITH VOLCANZSH.

HABtlITUDE~ 3.'9t"lS HS COHP(lfED FROM LONG-PERIOD VERTICAL COHPONENT.

34 P At(D/OR P ARRIVALS USED IN HYPOCENTER SOLUTIOtl 4 80)%LE HAGNITUDE AUTHORITY ~ GS

~

6 1983 20 APR 1980 20 12 19.5 46,210N 1M,190M 4.20HD 4 N ORIGIt(JJ DATA SOURCE ~ GB EARTHQUAKE ASSOCIATFD WITH VOLCANISH.

5 P AND/OR P'RRIVALS USED Itl JJYPOCENTER SOLUTION.

3 5OWL, t(ACNITUDE AUTHORITY GS

~

1984 20 APR 1980 %~03?48.7 4bo218N 1Ãe171M 4 10HD

~ 3 N ORIGIHi)L DATA SO(JRCE ~ GS EARTHQUAKE ASSOCIhTED WITH VOLCANISH, 18 P At(D/OR P ARRIVALB USED IN HYPOCENTER SOLUTION.

4 ~ 00HL HAGNIT(IDE Al.lTHORITY GS Q

1985 21 APR 1980 03 23 33o8 46a217N 1>Ms197W 4. 10HD 3 N ORIGINAL DATA SOlJRCE = CiS EhRTHQUAKE ASSOCIhTED MITH VOLCANISH.

8 P AND/OR P'RRIVAl 8 USED IN )JYPOCEtffER SOLUTION.

3.50t(Lp HAGNITUDE AUTHORITY ~ GS lJOODMARD-CLYDE CONSULTANTS 23 APR 81

MOODMARD CLYDE CUHSULTAHTS 23 A'Pft ~

PAGE 135 CAT, DATE TIME(GHT) LAT LOHG SL INTEH HAG SH H .DIS Q 8 LOCATION AHD COHHEHTS HO. DAY-MO-YEAR HR-MIH-SEC (HH) (KH) (KM) 1906 21 APR 1900 05e 17 52e 4 46 210H

~ 1 ~ 179M 4.40)g) H ORIGIHAI DATA SOURCE r. GS EARTHQUAKF ASSOCIATED WITH VOLCANISH.

10 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3.70ML )ee)GHITlJDE AUTHORITY = GS 1907 21 APR 1900 15 13-M.5 46 113H 122.169M

~ 4.50HD 10 H ORIGINAL DATA SOURCE GB EARTHQUAKE ASSOCIATED WITH VQLCAHISM.

30 P AHD/OR P ARRIVALS USED IN HYPOCENTER SOLUTIOH 4.50HL t)AGHIllJDE AUTIIOI?ITY - GB 1900 21 APR 1900 19 52 00.8 46.210H 122 '73M 4.00ML H ORIGI)IAL DATA SOURCE GG 1 EARl'HQUAKE ASSOCIATED MIlH VOLCANISM.

11 P A".ID/OR P'RE(IVAI 0 USED IH IIYPOCEHTER SOLUTION.

4.00ML Hhf'HI11JDE AUI'HOf?ITY GS~

190'9 21 APR 1900 20 33 59.5 46.++1N 122e 104M 3 50HL H ORIGIHAL DATA SOURCE . GS O EARTHQUAKE ASSOCIhl'ED MITH VOLCA)IIBM.

6 P A)IJI/OR P'R)iIVALS USED IH HYPOCENTER SOLUTIOH..

3.50ML HAGHITUDE AUTHORITY .= GS 1990 22 APR 1980 06 11 55e0 46.217H 122el00M, 3.80ML 5 H ORIGIt)AL DhTA SOURCE GB EARTHQUAKE ASSOCIATED WITH VQLCAHISH.

10 P AHD/OR P'RRIVALS USED IH )IYPOCEH1ER SOLUTIOH.

3.80HL MAGNITUDE AUTHORI'I'Y = GS 1991 22 APR 1900 10"25 05eb 46.221H 122el92W 4.20HD 3 N ORIGI)IAL DA'rh SOIJRCE GG EARTHQUAKE ASSOCIATED WITH VOI.CANISH.

18 P AHD/OR P'Rf'IVALB IJSED IH HYPOCCHTER SOI UTIOH 3.90MLg MAGNITUDE AUTHORITY =. GS 1992 22 APR 1900 16 14 57.4 43.030H 127.900M 4,40MB 15 N ORIGINS DATA SO)II?CE =. GS HYPOCEHTER SOLUTXOH DEPTH REG1'RAINED BY GEOPHYSIST.

21 P A)ID/OR P'RRIVAI 0 USED IN IIYPOI:ENTER SOLIJTII)H 1993 22 hPR 1900 19 20:10.0 4be217)I 1>>.181M ~ 4ebOMB H ORIGINAL DhTA SOURCE . GS EARTHQUAKE ASGOCIhTED MITH VOLCAHISH.

32 P AHD/OR P'RI IVALS USED IH l)YPOCEHTER SOLUTIOH.

4. 60MLy HAGHITUDE AUTHOI?I'TY . GS

>>:04 10,9 4.10MB 5 ORIGINAL DATh SOIJRCE r- GS

'9 1994 22 APR 1980 46.215H 122.170M H EARTIIQUAKE ASSQCIhTED MITH VOLCAHISH.

14 P AHD/OR P'RRIVALS USED IH )IYPOCEHTER SOLUTIOtl.

1995 23 APR 1900 03 01=04.9 46.216H 122e194M 3.40ML 2 N ORIGI)IAL DATA SOURCE GS EAR11)QIIAKE ASSOC IhTED MIl'H VOLCANISJ(.

6 P A)0)/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH.

3.40ML, IAGNITUDE AUTHORITY GS 1/96 23 APR 1900 06 04153.9 4be213H 122.176M 3e'90MB 3 H ORIGINAL DATA SOURCE ~ GB 8 EARTtlQUAKE ASSOCIh'TED MITH VOLCANISH.

7 P AtID/OR P'RRIVALG USED IH HYPOCEHTFR SOI-IJTIOH.

MOODMARD-CLYDE COI(BULTA)ITS 23 A)% 01 e e

0

~ i 0 I

~ f WOOD'WARD-CI YDF COHSLILTAHTS 23 APA I

PAGE 136 CAT s DATE T IIFE (GMT ) LAT LONG SL INTEN MAG SM M DIB Q S LOCA f I OH AHD COMMENTS HO. DAY-MO-YEAR HR-HIH-SEC (MM) (KM)(KM) ~

1997 23 APR 1980 06 44-41.7 46.212H I++o181M 3e30HL 1 N ORIGINAL DATA SOURCE ~ GB EARTHQUAKE hSSOCIATED WITH VOLCANISM.

6 P AHD/OR P ARRIVALS USED IH HYPOCEHTER SOLUTIOH 3.30HLp MAGNITUDE AUTHORITY ~ GS 1'998 23 APR 1980 08 42 42.9 46.211H Xi2.179M 3o20MI 2 H bRIGIHAL DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED MXTH VOLCANISM.

7 P AHD/OR F" ARRIVALB USED IH IIYPOCEHTER SOLUTIOH.

3 ~ 20MLi MAGNITUDE AUfkIORITY ii GS 1999 23 APR 1980 12 28~39.3 46o213N 1>+o186M 3.30ML 2 H ORIGIN DA'I'A SOURCE ~ GS EARTHQUAKE ASSOCIATED WITH VOLCANISM.

/ P AHI)/OR P'Rf(IVALS USED IH HYPOCENTER SOLUTIOH ~

3.30MLi lIAGHITUDE AUAIORITY ~ GB 2000 23 APR 1980 12:30-.~8.1 46,260H 122 ~ 012M, 4.50MB 5 H ORIGXtNL DATA SOURCE ~ GS EARTIIQUAKE ASSOCIATED MITM VOLCANISM.

kIYPOCEkffER SOLUTIOH DEPTH RESTRAXHED BY GEOPMYSIST.

17 P AHD/OR P'RRIVALS USED IH tlYPOCEHTER SOLUTION.

4.70MLg MAGNITUDE AUTIIORITY ~ GS 2001 23 APR 1980 13 08:15.4 46.217H 1>>.202M 3s 40)IL 2 H ORIGINAL DATA SOURCE ~ GS

'6 EARl)(QUhKE ASSOCIhlED WITH VOLCANISM. O P AND/OR P'RRXVAI 8 USED IN kIYP()CEN1ER SOLUTXOH.

3'IOMLi t(AGNITUDE AUfHORITY ~ GS 2002 23 APR 1980 15 18 01.1 46.215N 122.178(J 4.20IS 4 H ORIGINAL DATA SOUfiCE i- GS EARTHQUAKE ASSOCIATED WITH VOLCANISM.

21 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTION. 8 4.20ML, t1AGHITUI)E ALITNORITY - GS t-2003 23 APR 1980 15-31 02.'9 46.197H 122a178W 3.50ML 4 H ORIGXHAI DATh SOURCE .. GS EARTHQUAKE ASSOCIA'TED WITH VOLCANISM.

6 P A)JD/OR P'RliXVALB USED IH tlYPOCEHTFR SOLUTIOH.

3,50ML, t(AGNITUDE AUl'MORI'I'Y GS 2004 23 APR 1980 23 06-S0.5 46a196N I>+e199M 3e40ML 4 N ORIGINAL DATh SOURCE ~ GS 9 EARTHQUAKE ASSOCIh'l'ED MITH VOLCANXSI(.

5 P AHD/OR P'RI'IVALB USED IH ttYPOCENTER SOI UTION ~

3.4OML, MAGNITUDE AurMORXTY GS 200S 24 APR 1980 01?41:05.3 46.212H 122.200M 3,50ML 1 H ORIGIHAL DATA SOl)RCE ~ GS EARIHQUAKE ASSOCIATED MITH VOLCAHISM~

5 P AND/OR P'RflXVALB USED IN IlYPOCEHTER SOLUTIOH.

3.50ML, mOHI FUDE AUTIIORXTY GB O 2006 24 APR 1980 04"21 41.2 46.211H 122.192M 3.60MB 3 H ORIGIN'0 DATA SOURCE ~ GS EARTIIQUAKE ASSOCIATED MITI( VOLCANISM.

6 P AN)/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOtl.

3. 40tlL I&GHXTUDE AU flIORITY ~ GS MOODMARD-M YDE CONSULTANTS 23 APR 81

4 t

1

C'3 MOODMARD-CLYDE COIRBlULTAtff8 APR 8'AGE 137 CAT ~ DATE TIHE(Gtff) LAT LOHG SL INTEN HAG SH M DIS Q 8 LOCATIOH hHD COtlHEHTS tlO. DAY-HO-YEAR !N-MIH-SEC (MM) (KH)(KH) 2007 2R APR 1980 09.-50-.09.5 n6.217M X~i180W 4.00!RD R H ORIGIHAL DATA SOURCE ~ GS f) EARTIIQUAKE ASSOCIhTED WITH VOLCAHISM.

10 P AHD/OR P'RRIVALS USED IH JIYPOCEHTER SOLUTIOH.

3 ~ 90ML MAGNITUDE AUTI!OR ITY ~ GS e t:

2008 24 APR 1980 10 !'0 R2.8 46.~RH 122,196M 3.ROML 3 N ORIGItIAL Dffrh Sour:CE GS EARTIIQUAKE ASSOCIATED MITM VOLCANISH.

5 P At!D/OR P'RRIVAL.S USED IH MYPOCEHTERi SOLIJTIOH 3.ROILLg HAGHITUDE AUTHORITY ~ GS 2009 2R APR 1980 13.32 07i7 >6.203H 122.172!I 3,50HL 5 N ORIGIHAL DATA SOURCE . GS EAR rMQUAKE ASSOCInTED IJI TII VOLCAHISH.

5 P AHD/OR P'RRI'VALS USED IH IIYPOCEHTER SOLIJTIOH.

3,50HL IUIGHITUDE AUTHOI'ITY GS 2010 2R APR 1980 15 31 37.'9 R6.214H 1>Mi189M 3i50t 3 N ORIGIttAL Dhrh SOIJRCE . GS EARTIIQUAKE ASSOCIATED MITM VOLCANISH~

6 P AHD/OR P'RI"IVALS USED IH 'IIYPOCEHTER SOLUTION.

3.50HLg MAGNITUDE AUTHORI'I'Y ~ GS 2011 2R APR 1980 17-3R" 10.4 R6.220N 122.185M 4.70HD R N ORIGIIIAL DATA SOURCE .= GS EAR11IQUAKE ASSOCIATED MITM VOLCAHISH~

MAGNITUDE~ 3.8HB HS COHFUfED FROH LONG-PERIOD VERTICAL COMPOtlEHT.

R2 P At!D/OR P'RRIVALS IJSED IH MYPOCEN1ER SOLUTIOH ~

R ~ 80HL I&GHITUDE Alfl'HORITY =- GS 2012 2R APR 1980 19-00 R2.2 R6.213H lMi186M 3. ROHI 3 N ORIGIHFJ Dhfh SOURCE i-- GB EARTHQUAKE ASSOCIATED LIITH VOLCAHISH.

6 P AHD/OR P'RRIVALS USED IH MYPOCEtflER SOLUTIOtl.

3.40IRL HAGNITUDE AUfMORITY - GS ORIGIHAL Dhfh SOURCE i-. GS 2013 24 APR 1980 23 07 53 7 ~ Rib 216N 122 182LI

~ 3,70ML H I EARTHQUAKE ASSOCIATED LIITH VOLCANISM.

8 P AHD/OR P'RRIVALB USED IH HYPOCEIITER SOLUTIOH.

I

3. 70HL HAGHI11IDE AUTtIORITY - GS I~

Q 201R 25 APR 1980 00 27 57i7 R6.207M 1K?i19RM 3i60ML 3 H ORIGIIIAL DATA SOURCE i= GS EARTHQUAKE ASSOCIhTED MITH VOILA!IBM.

11 P Al<D/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3.60HL MAGNITUDE AUTHORITY - GS 2015 25 APR 1980 OR=55 31.9 R6i212H 122i191M 3.30HI 3 H OR'IGIHAI DATA SOURCE =- GS EARTHQUAKE ASSOCIATED WITH VOI CAHISH.

I 5 P AHD/OR P ARI IVALS USED IH HYPOCENTER SOLUT OH .

3.30HL, HAGHITUDE AUTHOI'ITY .= GS 2016 25 APR 1980 11 00"21i8 R6.211H 122i186W 3.90MB 3 H ORIGIHAL Dhl'h SONiCE i- GS EARTHQUAKE ASSOCIATED LIITM VOLCAtlIStl.

16 P AND/OR P ARI'iIVALS USED IH tlYPOCEtffER Sal UTION.

3.60HL, MAGNITUDE AUTHORITY - GS WOODWIND-CLYDE COHSIJLTAHTS 23 AFR 81 i Q

lOI MOODMARD"CLYDE Cows'IJLTAHTS 23 APR 8~

PAGE 138 CAT. DATE TIME(GMT) LAT LONG SL XHTEH HAG SN H DIS Q S LOCATIOH AHD COHHEHTS Ho. DAYMO-YEhR HR-MIH-SEC (MM) (KH)(KM) 2017 25 APR 1980 11 "03 43.6 46.220H 1~.179M 3.50NL 3 N ORIGINA'ATA SOURCE i. GS EARTHQllhKE hSSOCIhTED IJITH Vol CAHISM.

2 P A)J)/OR P'RRIVALS USED XH HYPOCDITER SOLUTIOH.

3. 50NL NhfiNITUDE AUTHORITY GS 2018 25 CZR 1980 23 20-27.9 46 '57H 122.180M . 5.00HD 5 H ORIGIHAL DATh SOIJRCE .. Gis EARTHQUAKE ASSOCIATED IJITH VOLCANISH.

HYPOCENTER SOLUTIOH DEPlw RFCl'RAXtIED BY GEOPHYSIST ~

20 P AHD/OR P'RRIVALS USED IH HYPOCEtlTER SOLUTION.

i". GS 2019 26 APR 1'980 12 16 55.8 46 '14N 1>>.182M 3,50HL 1 N ORIGINAL DACh SOURCE EARTIIQUAKE ASSOCIATED MITH VOLCANISN.

/ P AWD/OR P'RRIVALG USED IW IIYPOCEWTER SOLIJTXON.

6 3.50ML, aOGHXllJDE AUTHORITY . GS 2020 26 CFR 1980 14 26 00,3 46.220H XMil84M 3,'90MB 4 H nRxnxt(AL DATA smJRCE Gs 6 EARTIIQ'JAKE ASSOCIATED MXTH VOLCAHISN.

11 P AND/OR P'RT(IVALS USED IH I.IYPOCEHTER sol..urxnw.

3.60NiLg HAGHIllIDE AUTHORITY ~ GS 2021 26 APR 1980 15"M 59.9 46.215H 1>~i 178M 3.70HL 1 H ORIGIHAL DATA SO(JRCE = GS EARTH(lllAKE ASSOCIATED MITH VOLCAHISH ~

9 P AHD/OR P'RRIVALS USED IH IIYPOCEtITER SOLUTION 3 70ML IIAGNITUDE AUTHORITY

~ Gs 2022 27 APR 1980 01 15-41.5 46.214H 1'+>.182M 3 '0HB 4 H ORIGIHAL DATA SOIJRCE i". GS EhRl'HQUAKE ASSOCIhTED WITH VOI CAHISH.

13 P AHD/OR P'FdiIVALS USED IH tlYPOCEHTER SOLUTIOH 3.80MLg MAGNITUDE AUTHORITY ~ Gs 2023 27 APR 1980 01-59 56.2 46.214H i>>a 181M 3.90HB 2 N ORXGINAI DATA SOIJRCE > GS O EARl'HQUAKE ASSOCIATED WITH VOLCANISH.

16 P AtIJI/OR T" APiRIVAL Ussn Iw IIYPncE)ITER sOLUTxnw

3. OOML HAGHITUDE AUTHORITY Cis 2024 27 APR 1980 06 00 27.0 47.367H li2,550M IV 3.20HL 20 H ORIGINAL DATA SOUI"CE ~

GS EhtrrHQUAKE AssocxhrEn WITH VOI cANIsM.

REPORTED FELT ItIFOPiMATIOH.

5 P AND/Olt P'RRIVALS lISED IH HYPOCENTER SOLUTIOH.

3.20MLp HAGHITUDE AU1IIORXTY ~ GS 9 ~ GS 2025 27 APR 1980 07 15-17 1~ 46.204H 122 181M

~ 3oGOMB 7 H ORIGXHAL DATA SOIJfiLE EARCIIQUAKE AssocxhTEn WITH VOLCANISM.

10 P AWD/OR P'RRIVALS USED IH tlYPOCEHTER SOLIJTIOH 3,:)OHL MAGNIllIDE AU IHORITY GS ~

2026 27 APR 1980 07226-21.3 46.220N 1>>.184M 4.50MB 4 w ORIGIwJJ DATA snURCE - Gs EARllIQUAKE ASSOCIh TED WIlll VOLCANISH.

40 P AWD/Ori P ARRXVAI 8 USED IH tlYPOCEHTER SOLIJTXOH.

4.60ML MAGNITUDE AUllkQRXTY Gs WOONIAPD-CLYDE COHSULTAHTS 23 APR 81 I

9

MOODMARD-CLYDE COHBULTAHTS 23 APR ~i e

I'AGE 139 CAT. DATE TIHE(GHT) LAT LOHG SL INTEH HAG SH H DIS Q 8 LOCATION AHD COHHEHTS HO. DAY-HO-YEAR HR-HIN-SEC (HH) (KH) (KH) ~

2027 27 Q% 1980 12 34 37 6F '6.>~H 122i194W 4.00HD H ORIGINAL DATA SOI)fiiE ~ GS EARTIIQUAKE ASSOCIATED MXTII VOLCANXSH.

8 P AND/OR P'N'IVAI.B USED IH tlYPOCEHTER SI)LUTXOH.

3,60HLt HAGHITUDE AlfAIORITY ~ GS 2028 27 APR 1980 14"-48-20e3 4bo218H IX?.182M 3,90HL 4 H ORIGINAL DATA SOIIPiCE i-. GS EARTHQUAKE hSSOCIhl'ED WITH VOLChHISH.

14 P AND/OR P'RfiIVALS USED IH IIYPOCEtffER SOLUTIOH. O

3. 90iHL HAGHITUDE hU I IK)RXTY GS

~

2029 2/ APR 1980 17r04 39,4 46.212H 122i195W 3.50ttl ' N ORIGINAL DATA SOURCE GS 6 EARTHQUAKE ASSOCIATED MITH VOLCANISH~

7 P AHD/OR P'RI'iIVALB USED IH HYPOCENTER SOLUTIOH ~

3,50HL HAGHIllIDE AU11IORXTY ~ GS 6 2030 27 APR 1980 20.54 19.8 46,212H 122.181M 4. Xote H (3RXGIHAL DATA SOURCF GS 9 EARTIIQUAKE nSSOCXnrED WITH VOLCANXSH. Cl 9 P AHI>/OR P'RRIVAI.B USED IH IIYPOCFHTER SOLUTIOH ~

3.50HLp IlhGNITUDE AUTHORITY ~ GS 2031 27 APR 1980 23"40 47.6 46.212H 1>>i183M 3.40HL - 4 *

~ H ORIGIHAL Dh'fh SOUfiiE ~ GS EARTtlQUAKE A SOCIATED WXTH VOLCANISH.

6 P AND/OR P'RRIVAL'SED XH IIYPOCEHTER SOLIJTION. '9 3, 40HL t(AGHITUDE hUTIIORITY GS

'O 2032 2S APR 1980 03.49.33.5 46.220N 122,180M 4.40HD 4 H ORIGINAL DAIA SOURCE - GS EARl'HQUAKE ASSOCIATED MI11( VOLCAHISHo 34 P AND/OR P'INXVALS USED Il'I HYPOCENTER SOLUTIOH.

4.60Hi L~ HAGNITUDE AUII(ORITY ~ GS 6 2033 28 N% 1980 05" 15 54.1 46.+>5H I+Mi180M 4. OOHD 2 '

ORIGINAL DATA SOURCE = GS Q EAR I'HQUAKE ASSOCIATED MITtl VOLChtIISH.

20 P At(D/OR P'RfiIVALS USED IN I(YPOCEHTER SOLUTIOHo 3.90HLt HAGNITUDE AUTHORITY ~ GS 2034 28 FAR 1980 12-30~54,8 46.209H 122. 188M 3.70IID 1 H ORIGIML DATA SOURCE ~ GS EARTIIQUAKE ASSOCIATED WITH VOLCAHISH.

9' AHD/OR P'RfiIVALS USED IH tlYPOCFHTER SOLUTION.

3. 60t(L HAGHITUDE AUTIIORITY - GS 2035 28 APR 1980 12 38 41.9 46,~N'I++.178M 4.00HD H ORXGIHAL DATA SOIJRCE i GS ~

EARTHQUAKE ASSOCIATED MITH VOLCANISH ~

9 P AHD/OR P'RRXVALS USED IN HYPOCENTER SOLUTIOH.

9 3. SOHL HASH ITUDE AU I'HORITY GS 6 2036 28 APR 1980 15-09-07.7 46.212?I 1Ãe 180M 3. 50tIL 3 H OF?IGIHA'ATh SOURCE - GS 0 EAR1'I(QUAKE ASSOCIhl'ED WITH VOLCAHISH.

7 P AM)/OR P'RRIVALS USED IH I1YPOCEHTER SOLUTIOH .

3.50HL, HAONITUr3E AUTHORITY . GS MOODMARD-CLYDE COHSIJLTAHTS 23 APfi Sl Phl'F 140

e MOODMARD-CLYDE CONSULTA)ff8 23 APR 81 "PAGE 140 CAT. DATE TINE(GHT) LAT LOHG SL IHTEN NAG SH H DIB Q 8 LOCA'f ION AND CONHEHTS NO. DAY-NO-YEAR HR-HIH-SEC (NH) (KH)(KH) n 2037 28 f'J R 1980 17 0/ 11.9 46.226H 122.188M 3.30HL 1 H ORIGINAL DATA SOURCE i'S EARTHQUAKE ASSOCIATED MX'FH 'VOLCANISN.

6 P AHD/OR P'RliIWLB USED IH )IYPOCE))TER SOLUTIOH.

3.30HL HAGHIllmE AUTHORITY GS 2038 28 APR 1980 23"-52:35.6 46.214H I'Mi184W 3, 60)IL 3 H ORIGIHAI DATh SOURCE GS EARTHQUhKE ASSOCIhlED MIlH VOLCAHISH.

8 P AHD/OR P'RRXWL'JSED IH HYPOCENTER SOLUTIOH.

3 60HLy NAGNXTUDE AUll)ORITY i GS 2039 29 6% 1980 03 37"36.4 46.215N 122.186M 4.00HD 4 H ORIGIHAL DATA SOlf)KE i- GB 0 EARTIIQUAKE ASSOCIATED WITH VOLCANIBH.

7 P AND/OR P'fd?IVALS USED Itl )IYPOCE))TER SOLUTIOH.

3.40YiLi NAGHITUDE AUI'I)ORITY .= GS 9 2040 29 APR 1980 04 24.30i2 46e222H 1K?i170M 4.70ND 2 H ORIGINN- DATA SOURCE < GS Q EARTIIQUAKE ASSOCIhfED MXTH VOLCAHISH.

HAGHITUDE~ 3.6HS

'4 HS COHPUTED Fr(OH LO)IG-PERIOD VERTXCA CONPONENT.

4.60NL P AND/OR P'RRIVALB USED IH tlYPOCEHTER SOLUTION.

.- GS

~ HAGHITUDE AUIHORITY O 2041 29 APR 1980 06 20 50 ' 46.227H l~>a212M 4.2OHD H ORIGINAL DATA SOURCE ii GS EARTHQUAKE ASSOCIhlED WITH VOLCAHISH.

9 P AHD/OR P'RRIVAI 8 USED IH )IYPOCEtlTER SOLUTIOH.

3.60HL, HAGNXTIIDE hurt)ORITY GS Q 2042 29 APR 1980 06 22."38,9 46,232N 122.192M 4.70tID 2 H ORXGINAL DATA Sm)I?CE r: GS Q EARTIIQINKE ASSOCIhlED WITH VOLGQIISH.

28 P A)ID/OR P'Pif(IVALS USED IH IIYPOCENTER SOLUTION.

4.50HL )4AGNIlllDE AUIHORXTY - GS 2043 29 APR 1980 08"59'"23.6 46.204M 122s226M 3.40HL 5 N ORIGIHAL DATA SO)3)Ki E ~ GS EARTIIQUAKE hSSOCIA'IED MITH VOLCAHXSH.

9 P AHD/OR P'RRIVALS llSED IH )IYPOCE))TER SOLUTION 3.40HL NAFINITUI)E AUTtlORITY - GS Q 2044 29 APF? 1980 12r41:36.4 46,217N 1'~i107M 4.30HD 5 H ORIGIHAL DATA SOURCE - GS EARTIIQUAKE ASSOCIATED MITH VOI CAHISH.

16 P AHD/OR P'f5iIVALS USED IH IIYPOCE))TER SOLUTIOH.

4i10NL, HAGHXTUDC Aur)IORITV . GS 204S 29 APR 1980 12 46 00.1 46.219H 122.188M 3,60HL 2 H ORIGINAL DATh SOIIRCE i- GS Q EARl'HQUAKE hSSOCIATED MITH VOLCAHISH. 6 3 P AN13/OR O'RRIVAI.S USED IH IIYPOCEHTER SOLUTIOtl.

3.60HLg HAGHITUDE AUTHORITY i: GS 2046 29 APR 1980 17 46 06.0 4bi225H 1Ãi190W 3.60HL 2 H ORIGIHAI DATA SOUliCE ~ GS EART)IQUikKE hSSOCIhiTED MITH VOLCANISH.

6 P AND/OR P'FSIVALB USED IH )IYPOCE)ITER SOLUTIOH, 4 3.6OHL, HAG)IXTUDE AUFIIORITY . GS

'I MOOIIMAPiD-CLYDE CO)ISULTANTS 23 APR 81

WOODWAMJ-CLYDE CONSULTA)JTS 23 APR P~ iW ~ ~

s(

PACE 1n1 CAT. DA'1 E TIHE(GHT) LAT LONG SL INTEN HAG SH H DIS a 8 LOCATION AND COHHENTS NO. DAY-HO-YEAR HR-HIN-SEC (HH) (KH)(KH) 4.20HD ORIGINAL DATA SOURCE i-. Gs 2047 30 APR 1980 00 34 10.6 46.209N 1~>.168M 1 N C) EAR TJ(()WAKE ASSOCIATED uITH VOLCANIsH~

'9 P AND/OR P'TKIVALS USED IN tfYPOCE)ITER SOLUTION

3. 701 IL HAGNITUDE AUTHORITY GS zone 3o APR 1980 o5:o9:o2.7 46.220N 122,174M 4.80HD 3 N ORIGINAL DATA SOIJRCE = CS EARTIJQIJAKE ASSOCIATED WITH VOLCANISH ~

HAGNITUDE~ 3. GHS Hs COHPICTED FROH LOtlG-PERIOD VERTICAL COHPONENT.

39 P AFJD/OR P'RRIVALS USED IN ttYPO(XHTER SOLUTION.

4.70HL t"AGNITUDE AJJIHORITY - GS 2049 30 APR 1980 07 42 09e2 46.218N 1X?.187M n, 1ot(D N ORIGII'Nf DATA SOUI CE - Gs EARTHQUAKE ASSOCIATED 1JITH VOLCANISH.

P AND/Of< P ARRIVALS IJSED IN ttYPOCE)JTFR SOLUTIol'l 4.20HLg HAGNITUDE AUIlloRITY ~ Gs 6

07.-M:59.1 . n ~ ioHD ORIGIN'J DATh SOURCE ~

2oso 30 APR 1980 n6.21sN 122.163u - 2 N Cis EARTHQUAKE ASSOCIhTED WITH VOLCANISH.

6 f'ND/OR P'RRIVALS USED IN tfYPOCENTER SOLUTION. 9 3.60HL ~ HAGNITUDE AUTHORITY ~ Cis O 20'il 30 APR 1980 20 50 3816 46.212N 122.192M 3.90HD 3 N ORIGI JNI DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED MITH VOLCANISH.

13 P AND/OR P'RJ,IVAJ.S USED IN tlYPOCENTER SOLUTION.

3.60HL, HAGNITUDE Aul'HORITY - GS 2052 1 HAY 1980 04 "nb 15.6 nbo218N 122+186M 4.30HD 3 N ORIGINAL DATA SOURCE > GS F.

Q EARTHQUAKE hssocIATED uITH VOLCANISH. 8 26 P Atff>/OR O'RRIVALS USED IN fIYPOCE)JTER SOLUTION.

4.20HLy HAGNITUDE AUIt(ORITY ~ GS 2053 1 HAY 1980 04.-53:05,4 n6.227N 122.196M neooHD 2 N ORIGINf'J DA'CA SOUF(CE i- GS EARTHQUAKE ASSOCIATED lJITH VOLCANISH.

j 8 5 P AND/OR P'RC(IVAI.G USED IN HYPOCENTER SOLUTION. 8 3.40HLg 1'IAfiNITUDE AUTHORITY ~ Cis 2054 1 HAY 1980 06?18-32.3 46.212N 122. 195M 4.20HD 3 N ORIGINhl DATh SOIJRCE -" Gs EARTHQUAKE ASSOCIATED (JITH 'Vol CANISHo 13 P AND/OR P'f'RIVAI 8 USED IN llYPOCENTER SOLIJTION,

.I 'f(ft 3.70ViL, HAGNIlUDE AUTI(ORITY GS 9 2055 1 HAY 1980 10 5'9 03.4 46.193N 122.183M 3.70HD 3 N ORIIJINAL DATA SOUfiiE i- GS EARTHQUAKE ASSOCIATED MITH VOIX.'ANISH. Q 14 P AtlD/OR P'RRIVALS USED IN tlYPOCENTER SOLUTION, 3.60HL, ttAGNITUDE Aul'llORII'Y .= GS 2056 1 HAY 1980 12 nh 12o3 46.214N 122a178W 3o20HL 3 N ORIGINAL Dh'Ch SOURCE i- Gs EAR'llfQUAKE hSSOCIATED MITH VOLCANISH.

5 P AND/OR P'FiAIVALS USED IN HYPOCENTER SOLUTION. O 3.20HL HAGNIlllDE AUTIIORITY = GS WOONJARD-CLYIJE CONSULTfÃTS 23 APR 81

6 WOODMARD-CLYDE COI(BULTFÃfS 23 AFR I,'AGE 142

. CAT. DATE TIME(GMT) LAT LONG SL IHTEH HAG SH H DIS Q 8 LOCATION AHD COHMEHTB HO ~ DAY-Ho-YEAR HR+lDI-SEC (HH) (KH) (KH) ~

205/ 1 HAY 1980 19 27=15.7 46.209H 1~.182M 4 30HD e N ORIGINAL DATA SOURCE r GS EARl'HQUAKE hSSOCXATED IJIl'H VOLCANISM'9 P AM)/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH 4 ~ 0ML, wGNITUDE AumoRIrY - Gs 1',70HD 2058 1 HAY 1980 21-3k:09.7 46,219H 122. 165M 1 N ORIGINAL DATh SOURCF r GS EARTHQUAKE ASSOCIA'TED MITII VOLCANISM.

8 P AND/OR P ARRIVAI S USED IH HYPOCENTER SOLUTIOHi 3.70)CLED IIAGNITUDE AUTHORITY ~ GS 2059 1 HAY 1980 23 01 "10.8 46o219N 122.182W 3.30ML 2 H ORXGII'!AL Dhl'h Sour(CE r GB aemm)AKE ASSOCIATED MXIH VOLCANIsM, 5 P AHD/OR P'f&IVAI 8 USED IH IIYPOCEHTER Sol UTION.

3,30ML MAGNITUDE AUTHORITY Gs 2060 2 HAY 1980 00-57:09 4 46.~>N 122.196M 3,30M) 1 H Of(IGIHAL DATA SOURCE r GS 6 ~

EAR1'HQUAKE ASSOCIATED WITH VOI.CAHISH~

4 P AHD/OR P'RRXVALB USED IH IIYPOCEHTER SOLUTIOHe 3s30MLg MAGNITUDE AUTHORITY ~ GS 2061 2 HAY 1980 05 12 19 0

~ 4bo~>~BI I~~e170M 4. 3OMD N ORIGINAL DATA SOURCE r Gs EARTIIQUAKE ASSOCIATED IJITH VOLCANISH.

16 P A)ID/OR i Aflf:XVALS uSEn ZH IIYIocEHTER sol UTIOH.

4.00MLp IIAGHZlXIDE AUTHORITY ~ GS 9 2 HAY 1980 08t36.31,6 46,213H I'~.200M 4.00MB H ORIGINAL DAl'A SNAKE r Gs

)

=

EARTHQUAKE ASSOCIATED IJZTH VOLCANIBH~

j sy Io I A)ID/OR I AfaZVALS ussn IH HYFoCEHTER soLuTzoH.

3.60ML MAGHITUDE hu'f>>ORITY - GS 2063 2 MAY 1980 09~52 25.4" 46.212M 1>>.189M 3.40ML 3 H OfrIGIHAL DATA SOURCE ~ GB EARTHQUAKE ASSOCIATED WITH VOLCAHISM.

5 P AHD/OR P'fNIVALS USED IH IIYPOCEHTER SOLUTIOH.

f

3. 40ML HAGHXTUDE Alll'IIORI Y GS 2064 2 MAY 1980 12-52 17,5 46.189N 122.147M ., 3.80ML 10 ORIGINAL, nhrA SOI m Gs EAR11IQUAKE ASSOCIATED MITH VOLCANISH.

10 P AIID/OR P'FRIVAL. USED IH IIYPOCFATER SOLIJTIOH.

3.80MLi HAGHITUDE AU'flIORXTY ~ Gs 2065 2 HAY 1980 13202 29 6 4bs232H IW.o196W '0MD 1 H ORIGINAL nATA sol)RcE - Gs EARTHQUAKE ASSOCIAlED WITH VOLCAHISM.

MAGHITUDEr.. 3.6MB HS COMPUTED FROM LOHowEI<zon VERrzchL COMPONENT.

30 P AIJD/OR P'RRIVAI..B USED IN HYPOCEHTFR SOLUTION, 4.50ML, HAGIIITUDE nuTMoRXTY Gs 2066 2 HAY 1980 18" 9 47.4 46.211N 122.1M' 3.40ML 3 H ORIGINAL DATA Sol)RCE ~ Gs EARTHQUAKE ASSOCIATED MXTH VOLCAHISM.

5 P AHD/OR P'RRIVALS USCD IH HYPOCEHTER SOLUT1OH.

3 '0ML, MAGNITUDE AuruoRITY Gs MOODMARD-CLYDE COH! ULTAHTB,23 AFR 81

Q MOOD'WARiD-CLYDE COIISIJLTA)ITS 23 APR 8~

PAGE 143 CAT. DATE TItfE(GMT) LAT LONG SL INTEH MRG SM H DIS Q S LOCArXON AND COMMENTS HO. DAY-MO-YEAR HR-MIH-SEC (MM) (KM)(KM) 2067 3 MAY 1980 05 00 46.0 4bi207H 122 181M

~ 4 i 40MB 10 N ORXGINfJ DATA SOUh&E i ~

GS EARTHQLKE ASSOCIhlED WITH VOLCANISM.

MAG)IITUDEr-' i 21'IS MS COMPUTED FROM LOtI~ERIOD VERTICAL COMPOHEHT.

34 P AHD/OR P'RRIVALS USED IN HYPOCEHTER SOI.UTXOH.

4.50ML MAGNITUDE AUTHORITY GS ~

2068 3 MAY 1980 05-05 30.5 46.>MXN X~MF189M 4.50MB H ORIGINAL DAI'h SOIJRCE ri GS EARTHQUAKE hSSOCIRTED WITH VOLCANISM, 13 P AND/OR P'R)TXVALS USED IH IIYPOCENT'ER SOLUTIOH.

4.10ML, IIAGHITUDE RUTHOI<ITY - GS 2069 3 MAY 1980 06-47 50.8 46,209H l~~i187M 3.60ML 3 H ORIGItIJ'hl'h GOACE r: GS 0 EARTHQUAKE ASSOCIATED MITH VOLCAHISM.

3 P RHD/OR P'RRIVALS USED IH IIYPOCENTER SOLUTIOH 3.60MLp l4AOHITUDE AUI'HORITY ~ GS o [,

20/0 3 MAY 1980 13-12 13.7 46.430N 121i945M 4.10MB 1 H ORIGIHRL DATh SOIJRCE GS EARTIIQUAKE ASSOCIATED WITH VOLCANISM. l HYPOCEtfTER SrOLUTIOH DEPTH RESTRAINED BY GEOFHYSIST ~

13 P RHD/OR P'RRIVALS USED Xtl HYPOCEHTER SOLIJTIOH.

3.90MLr MACNIITIJDE Rtfl)IORI fY ~ GS o t.

2071 3 MAY 1980 15-40-57.2 46.218H 122 199M

~ 3FGOMB 2 H ORXGIHRL DATA SOIJRCE r GS EARlHQURKE ASSOCIATED MITH VOIAANISM.

13 P ANIJ/OR P ARI,XVALS USED Xtl IIYPOCENfER SOLUTION.

3FOOMLr MAGHITl)DE AUf)(ORITY r- GS 2072 3 MAY 1980 20 45 38i0 46.213H 122i170M 3.70)II 1 N ORIOX),'RI Dhfh Soul:CE GS EARTHQUAKE ASSOCIAfED IJXTH VOLCAHISM.

6 P R)ID/OR P'RfiIVALS USED IH IIYPOCEHTER SOLUTION 3.70ML MAGNITUDE R~UTHOIEITY - GS

. 2073 4 MAY 1980 07-47 28i9 46F220H 12'87M 3. 60IIL 1 H ORIGIHRJ Dhl'h SOURCE r GS J e EARTHQUAKE ASSOCIATED MITH VOLCANISM.

7 f'HD/OR P'RRIVALS USED IN HYPOCEHTER SOLIJTION.

3.6OML, MRGHXmDE'Au'fHORITY . GS 2074 4 MAY 1980 11i58=27.4 46F226H X~F183M n.60MB 2 H ORIGIHAL DhTA SOURCE r: GS EARTHQUAKE ASSOCIATED WITH VOLCAHISM.

MAGtIXTIJDEir 4.0MS MS COMPUrED I ROM IONG-PERIOD VERTICAL COMPONENT ~

36 P AHD/OR P'RRIVAL. USED IN HYPOCENTER SOLIJTION.

.] o 4.60MLr MAGtlITUDE AIJll(ORITY Fi GS 2075 4 MAY 1980 17 34-30F7 4bi220H 122F187W 3.40I& 1 N ORIGINA','I'fh SOURCE . GS EARTHQUAKE ASSOCIhl'ED MITH VOLCAHISM.

8 P AHD/OR P'Rf:IVRLS USED IN HYPOCENTER SOLUTIOH.

i:3 3.40ML I.IAGHIlllDE AUTHORITY - GS WOOIIWARD CLYDE CONSULTANTS 23 APR 81 prrr nn

8 IJOODMARD-CLYDE CONSULTANTS 23 APR 8~, 'a i ~

PAGE 144 CA I ~ DATE TIME(G)IT) LAT LONG SL INTEN MAG SM H DIS Q 8 LOCA TIO)l AHD COMMENTS HO. DAY-MO-YEAR HR-MIH-SEC (MM) (KM)(KM) 2076 4 t)AY 1980 21?39-22ai 46.211N 122a186M 4.20MB 2 N ORIGINAL Dhrh Sour'CE GB EARTHQUAKE ASSOCIATED MITII VOLCANISM.

8 P AND/OR P'RRIVALS USED IH HYPOCEtfIER SOLIJTION.

3.50MLg MAGNITUDE AUTI-IORITY ~ GS 2077 5 MAY 1980 01 53 30,5 46.224N 122.198IJ 4. OOI"ID 1 H ORIGINAL DATh SOURCE a". GB EARTIIQUAKE ASSOCIATED MITH VOLCANISM.

8 P AHI)/OR P'RRIVALB USED IH HYPOCENTER SOLUTION.

3.70ML ldÃNITUDE AUT)IORI'fY GS 2078 5 MAY 1980 04"44."32.2 46.214N I++.182M 3 40)g a 2 N ORIGIHAL Dh'I'h SOIIRCE al GB EARTHQUht(E AS OCIATED IJITH VOLCANISM.

4 P AHD/tlR O'lit;IVAI..S USED IN HYPOCEHTER SOI..UTIOtt.

3.40ML, MAGNITUDE AUfHORITY - GS 6 2079' MAY 1980 05 43Z04al 46.216H 1>>a171lJ 4.60MB 3 H ORIGIHAL DATh SOI)RCE a GB ~

6 EARTHQUAKE ABSOCIhTEO MITH VOLCANISM. O MAG)IITUDE~ 3.7MS (

MS COMPUTED FlmM LONG-PERIOD VERTICAL COMPO)IENT.

8 P AHD/OR I 'F0TIVAL. USED IN IIYPOCENFER SOLUTIOH, 0 4.60MLg MAGNITUDE AUfllORI'fY ~ GS

'9 2080 5 MAY 1980 07 27 "30.6 46.207N 122 157M

~ 3abOML - 1 H ORIGIIJAL DA'fh SOURCE GS EARTHQUAKE ASSOCIhTED MITH VOIJ~IISM.

10 P AHD/OR P'RRIVALB USED IN HYPOCEHTER SOLUTION.

3.6()MLp I"AG)IITUDE AUTIIORITY ~ GS 2081 5 MAY 1980 09 12"54.4 46.220N 122.172M ha40MB  ? N ORIGINAL DATh SOURCE a- GB 9 EARTIIQIL)KE ASSOCIATED MITH VOLCANISM. 0 a 23 P AND/OR P'FA'IDEALS USED IH )IYPOCENTER SOI UTION.

4.00t(L, IL4GNITUDE AUTt(ORITY GS li a

2082 5 MAY 1980 09 22 15a9 46.207lt 122a201M 3.80MB N ORIGINAL DATA SOIIRI:E GS EhRTIIQUAKE ASSOCIATED IJITH VOLCh)JISM.

7 P AND/OR O'taRIVALS llSED IN HYPOCEtflER SOLUTION.

3. 40ML, MAGNIllIDE AUl)IORITY GS ~

2083 5 MAY 1980 10 44-57.8 46.216N 122 '72M 3.30ML N ORIGI)thl DATA SOURCE - GB 0 EARTHQUAKE .ASSOCIhTED LIITII VOLCAHISM.

7 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH.

3.30ML, t4AG)IITUDE AUTHORII'Y .= GS 8 2084 5 MAY 1980 13 19 08.3 46 215M 122.192'M

~ 3.60)IL 6 H ORXGIHAL DATA SOURCE a GS EARTIIEL4KE ASSOCIATED IJITH VOLCANISM ~

8 P AND/OR P'RRIVAL. USED IH )IYPOCE)ITER SOLUTIOH.

3. 60MLp MAGNITUDE AU I'HORITY ~ GS 208S 5 MAY 1980 16-13.51.9 46.209H 1>>. 179M 4.40MB H ORIGIHA'- DATh SOURCE GS EARTIIQUAKE ASSOCihiED Mr TH VOLCANISM.

6 P AlID/OR P'RRIVALB USED IN )IYPOCE)ffER SOLUTION.

I. 3.50t(Lg MAGHI'llJDE AUTHORITY . GS MOODMARD-CLYDE CONBIJLTANTS 23 APR 81

~ ~aa

M 8~

E MOOBMl'BD-CLYDE CONSULTANTS 23 APR P

PAGE 145 CAT. DffrE TIHC(GHT> LAT LONG SL I)ffEN HAG SH H DIS Q 8 LOCATI OH hHD COHMEHTB HO. DAY-)IO-YEAR HR-HIN-SEC (HH) (KH) (KH) 20' HAY 1980 00 03:31.6 46.220N 12:?.171M h. OOIIL N ORIGINAI DATh SOURCE Gs EARTHQUAKE AS OCIATED MITH VOLCAHISH.

11 P Al'ID/OR P'KIVALS USED IN )IYPOI:ENTER SOLUTION.

4 Oata., HRGNIll.lDE AUTI?ORITY

~ GS 2087 6 HAY 1980 08 15 01.8 46s220N 1+>.194M 4.20HB N bRIGINN DATA BOUN:E GS EART)IQUAKE ASSOCIATED MITH VOLCA)IISH.

ll P AND/OR P'RRIVAI.S USED IN )IYPOCENTER SOLUTION.

3.80t(Lg t&GNITUDE AUTHORITY ~ Gs 2088 6 HAY 1980 15 30 44.8 h6.383N 121.900M 4 00))D

~ 1 H ORIGIHIJ DATA SOURCE ~ Gs EARTHQUAKE hSSOCIITfED MIT)I.VOLCANZSH.

HYPOCEI<1ER SOLIJTIOIN DEPZ)I RESTRAINED BY GEOPHYSIST ~

9 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTION.

3.70HLp HAGHITUDE AUT)IORI IY = GS 2089 6 HAY 198O 17:oh:50.9 46.357N 1~.076M 4,70HB 1 N ORIGIHAL DATA SOIJRCE - GS EARTHQUAKC ASSOCIATED MITII VOLCAHISH.

HAGNITUDF=- 4 ~ 2HB Ms COHPUfED FROH LONG-PERfOD VERTICAL CO)IPONENT.

HYPOCENlER SOLUTION DEPl')I RES)RAINED BY GEOf'HYSIST.

26 P AND/OR P'RRIVALS ltSED IN HYPOCEHl'ER SOLUTIOH.

4. /OHL, HABNITUDE Alfl'IIORI'IY GS 2090 6 HAY 1980 19."22528,4 46.219N 1K?.174M h. 60HB 3 N ORIGINAL DA'fh SOURCE ~ GS 0 EARlllQUAKE ASSOCIATED MIT)I VOLCAHISH.

18 P AHD/OR P'M;IVAL'SED IN )IYPOCENTER SOLUTION.

4.20HL HAGNITUDE AUfHORZTY GS 2091 . 7 HAY 1980 03.44:42.8 46.213H 1+M.187M 3190)Q) 2 H ORIGINN DATA SOIJRCE ~ GS EAf?THQURKE ASSOCIATED MITH VOI CANISH.

12 P AND/Or, P eaZVAI S USED IN HYPOCENTER SOLUTION.

3.70HL, HAGNIl'UDE AIITHOR'ITY ~ GS 2092 7 HAY 1980 08 52~33al hbo218N 1++.173M 4. OOHD 1 H ORIGINAL DA'I'A SOURCE Gs EARTHQUAKE ASSOCIhl'ED MITH VOLCANISH ~

8 P AHD/OR O'Rf?IVALB USED IN )IYPOCENlER SOLUTION.

3.60HL IKRGNITUDE hlf)I?ORITY . GS 2O93 7 HAY 198O 11:09:18.0 46.221H Im.1SSM 4 o70HB 1 N ORIGINAL DATA SOURCE ~ GG EARTHQUAKE ASSOCIATED MITH VOIXANISH.

26 P AHD/OR O'RI"1VALS USED IH )IYPOCEHTER SOLUTIOH ~

4.60t(Lg I'LRGNITUDE AUTHORITY =. GS 2094 8 HAY 1980 01 19 59.0 46,212H 1~~.184M 4.00HB 1 N ORIGINAL DATA SOURCE > GB EARTHQUAKE ASS(ICIhTED lIITH VOLCANISH.

10 P AND/OR P'f?f?ZVALS USED IN )IYPOCENTER SOLUTION ~

3.60HLt HAGNITUDE AUl'HORITY ~ GS 2095 8 HAY 1980 07 46-49.1 46.064N 121.935M 3 90HD

~ 10 N ORIGINAL Dhl'h SOIJRCE . ~ Gs EART)IQUAKE AS'OCIATED MITH VOLCANISH.

MOODMARD-CLYDE CONSIJLTANTS 23 APR 81 V, 3'.

~

Q s

~ 'i 9 0 MOODWAI~CLYDE CON!AJLTAHTS 23 APR 81~

PAGE 146 CAT. DhTE TIME(GILT) LAT LONG SL IttTEN MAG SN H DIS 0 8 LOCATIOI'I AHD COMMENTS HO. DAY-t(o-YEAR HR-MIH-SEC (MN) (KM)(KM) 13 P AHD/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

3180NLg HAGNITUDE AIJTIIORITY ~ Gs 2096 8 NAY 1980 07 48 46' 46.227H 122.169M 5.00MB 1 H ORIGINAL DATA sour;CE

- Gs EARTHAUAKE h. SOCIATED LIITH VOLCANISM.

NAGNITLJDE~ 4.CNS NS (X)MPUCED FROM LOHG-PERIOD VERTICAL COMPONENT.

41 P AHD/OR P'RRIVAI 8 USFD IH IIYPOCEHTER SOLUTXOH.

4.70ts, t<AGHXTLIDE AUCIIORITY - Gs 2097 8 MAY 1980 08"47=~mi 4

~ 46.219M 122.196M H ORIGINAL D'CCA SOURCE ~ GS (5) EARTHQUAKE ASSOCIATED LIITH VOL.CAHISM.

5 P Al'ID/OR P'RRI'VALS IJSED IH IIYPOCEtrlER SOLUTIOH.

3.60m, NAftlxTUDE AUTHOI?XTY Gs ~

2098 8 HAY '1980 09 03 40.0 46m~~> 1~+a171LJ 4 ~ 20'2 H ORIGINAL DATA SOLJRCE ~ GS EARTHQUAKE ASSOCIhTED WI1'H VOLCAHXSN~

6 I'OLUTI 22 P AHD/OR P'f0'XVALS USED IN HYPOCEHTER OH .

4 3L)wL, NAGHXxw)E AUCIIORXTY - 'Gs

~

8 2o99 8 MAY 198o Io:o5=38,4 46,228H 122.197M 4.20MB 4 H ORIGIHAI. DAl'A SOURCE r': GS 0 EARTHau.'1KE ASSOCIATED lJITH VOLChHXSM.

10 P AND/OR P'RFXVAL. USED IH HYPOCEHTER SOLUTIOH.

3.70ML NAGHITUDE AUTHOI?Il'Y - Gs 2100 8 MAY 1980 15 31 48,9 46.221H I++.186M 3.60NL 1 H oRxGINAL BACA seem Gs 9 EARTI%.'UAKE ASSOCIATED WITH VOLCAHISN.

13 P CJ'ID/OR P'RRXVAIG USED IH IIYPOCEHTER SOLUTIOH, 3ehOMLr MAGNITUDE AUTHORITY ~ GS 2101 8 MAY 1980 1'9-27 30.0 46.218H 1~.180M 3,80MB 1 H ORIGIHAI DATA Sour'CE GS EARTHQUAKE ASSOCxhlED IJXTH VOLCAHISN.

6 P AHD/OR P'RRXVAI S USED IH HYPOCEH1ER SOLUTIOH.

3.60ML, NAGHI1uDE hurl(ORxTY Gs

'9 2102 9 MAY 1980 00 55 02.4 46.213N 1~.186M 4,20)ID H ORIGINAL DATA SOURCE ~ GB EARTHGUAKE nssocxn'rED MITH voLcANxsN.

12 P AHD/OR P'RRIVAI 8 USED IH IIYPOCEtlTER SOLUTIotl.

3.50MLp MAGNITUDE AUTHORITY ~ Gs 2103 9 HAY 1980 04 31 58.1 4 6 o 213H 1>> a 175lJ 3,50ML 1 H ORIGINAL DA'CA solefE ~ Gs EARTHOUAKE ASSOCIATED MXTH VOLCAHISM.

6 P At!D/OR P'FJ?IVALS USED IH HYPOCENTER SOLUTIOH.

3.50ML ~ t(AGHITUOE AUTHOI?ITY - Gs 2104 9 NAY 1980 07 01:01,3 46,224H 122.174M 4.80MB 2 H ORXGIIIAL DArn sotecE Gs EARTHQLIAKE ASSOCIATED LJITH VOLCAHXSN.

33 P Allo/OR P'J5?IVALB LJSED IH HYPOCEHTER SOLLJCIOH.

4.60IILp HAGHI'CIJDE Aul'HORITY .. GS 2105 9 MAY 1980 08t32 30.5 46.215H 1>>.189M 3.30NL 1 H DRIGIIIAL Dhcn BGURcE G.

EARTHOl)AKE ASSOCIATED LJITH VOLCANISM~

MOODWARD-CLYDE COHSULTAHlS 23 APR 81 Per~ )47

~ l V

(. t 81~

MOODMJJlD-CLYDE COHSULTRIFIS 23 APR

~ n ll ~ ~

PAGE 147 CAC. DATE TIHE(GHT) LAT =

LONG SL IHTEtl HAG SH H DIS Q S LOCATION AND COHMEHTS t?O ~ DAY-MO-YCAR HR-MIH-SEC (HM) (KM)(KH)

Q 7 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTIOH ~

3,30ML MRGHITIJDE AUTl)ORITY = GS 2106 9 )IAY 1980 14 "10"37.3 46.215H XZ?l.174M 3.80HD 1 N ORXGIHAI DATA SOURCE = GS EARTHQUAKE ASSOCIhTED MITH VOLCANISMe 10 P AHD/OR.P'RRIVALS IJSED IH )IYPOCEHlER SOLUTIOH.

3.70MLt Hl&HITUDE AUTHORITY tl GS 2107 9 HAY 1980 18"06 26.5 46 221H 122.170M

~ 4.40HB 2 H ORIGIN DATA SOIJRr< GS EARTHQlLRKE ASSOCIATED MIl'H VOLCANISM.

MAGNITUDE= 3.7HS Ms COMPUFED rf OM IONG-I ERXOD VERTICAL COMPOIIEHT.

34 P At!D/OR P'R) IVALS USED IH HYPOCE)?TER SOLUTION.

4.60ML, HAGHIT(mE AvrHORIl'Y - Gs 2108 9 HAY 1980 21 29-35.8 46.208H 1>>.175M 3.60HL 1 N ORIGIHAI- DATA SOURCE l Gs EARl?MQUAKE RSSOCIATED MITH VOI CA)JISM.

7 P AND/OR P'RRIVAL.. USED IH IIYPOCEHTER SOLIJTIOH ~ e I',

3.60)L, tnGIJXmDE RurHORXTY - Gs 4

0 2109 10 HAY 1980 01 14.10.7 46.215H 1~.182M 3. 601% 1 H ORIGI)?f'J DATA SOURCE l-. Gs EARTHQUAKE ASSOCIATED IJXTH VOLCAHXSM.

5 P AHD/OR P'F(RIVALS USED IH HYPOCE)FFER SOLUTXOH

3. 60ML )L4GHITUO AIFCHIJRITY ~ fis O 2110 10 t'IAY 1980 05 50 04.0 46 220H 1>&.189M

~ 4.20HB 1 H ORIGINAL DACA SOIJRCE .= GS EARTHQUAKE ASSOCIATED IJITH VOI.CANISH.

10 P AHD/OR P Rf?F(XVALS USED IH )IYPOCEHTER SOLUTIOH 3.70HL ~ HAGHXTUDE AUI'HORITY ~ GS 2111 10 HAY 1980 09 25 56l1 46.221N 122 '88M 3.90HD 4. tl ORTGIHRL DATA SOURCE l-. GS EARTHQUAKE ASSOCIATED MITH VOLCRHISH.

7 P RHD/OR P'rdlIVALS USED IH IIYPOCEHTER SOLUTIOH.

3.80MLt t)AGHITUDE AUll)ORITY ~ GS 2112 10 HAY 1980 ll 15 54 9 46. 218H 1>> 182M a n. XoMB H ORIGI)JRL DATA SOUf?CE ~ Gs EARTHf?URKE ASSOCIATED MITH VOLCANISH.

9 P AHD/OR P'f(F(IVALS USED Ill )IYPOCEHTER SOLUTIOH ~

3.SOMLt IAGHITUDE A(ITHORXTY ~ Gs 46.349M 122 '33M 'Xo ORIGIIIRL DATA SOIJRCE rts

') '9 2113 10 HAY 1980 12 31 51eo 4.40MB N FAST)IQLnKE ASSOCIAl'ED MITH 'VOLCAHISM.

HYPOCEHXER SOLUTIOH DEPl'H RESlRAIHFD BY rtEOF'HYSIST.

18 P AND/OR P'RRIVALS USED IH HYPOCEIITER SOLUTIOH.

n.ooML, MAGNITUDE RUT)IORI'CY = rts 2114 10 INLAY 1980 17 35-20lb 46.219N 122.186M 4,00HL 3 N ORIGIHFJ DRTR SOIJCllE t'S O EARTHQUAKE ASSOCIATED IJITH VOLCRIIISM.

L 13 P AIJD/OR P'RRIVALS USED IH IIYPOCEIITER SOLUTIOH.

F 4.00ML MAGNITUDE RUTHORXTY ~ GS 23 RPR 81 t'OODMRRD-CLYDE CONS) JLTAHTS I'

MOODMARD-CLYDE CONS(JLTA)JTS 23 APR 8~

PAGE 148 CAT ~ DATE T IHE(GHT) LAT LONG SL INFEH Hnli SH H DIS 0 8 LOCATIOH AHD COHHEHTS Ho. DAY-Ho-YEAR HR-HIN-SEC (Htl ) (KH) (KH) 2115 11 HAY 1980 01 19 29 5~ 46.213H 122o202M 3.70HL 4 N ORXGI~ Dn'Fn SOURCE ii GS EART)tounKE nssocr*TED MXTH vm CANXSH.

7 P At(D/OR P'PJ XVALB USED ZH llYPOCENTER SPLUTIOH.

3.70HL, HAGNITUDE ntmtoRXTY Gs I

2116 11 HAY 1980 04-.00:18.1 nb.220N 122. 173u 4.70HD 1 H ORIGIHAL DATA Sol¹CE ~ GS EARTt(QUAKE hssocrhlED MITH VOLCAHISH~

25 P AND/OR P'RRIVALS USED IH llYPOCEHfER SOLUTION.

4.50HLi HAGHXT(tDE AllfllaRXTY ii GiS 6 2117 11 HAY 1980 08 09 40.4 46.215H 1~.184M n.ooHD tl ORXGIHAL Dnln SOUfKE i: Gs EARTH()MAKE AssocrhlED MXTH VOLCANISH ~

9 P AHD/OR P'RF(IVALS USED IH HYPOCENTER SOLUTIOH.

3.boles., HAGHITUDE AulHORX'I'Y GS 9 2118 ll HAY 1980 08-15-42m 1 46.194H 122e205M noOOHD 12 N ORXGIttJJ. DATA Bot)(KE .-- GiS EARTHotlhKE ASSOCIATED (JITH VOLchHXSH.

6 p AHD/0R p'RRIVALB UsED Bt ttYpocENTER soLUTXDH, 3 50HLi HAGNIlltt)E AllTtlORXTY ~ GS

~

'-. GS 211'9 11 HAY 1980 13 29 54.0 46.220H 122,176M, . 4.20HD -

1 H ORIGIHAL DATA SOURCE EARTHQUAKE ASSOCIATED MITH VOIKAHISH.

17 F AHD/OR P'RRXvncs UsED It>>lYF oCENTER sat UTION.

4 10HLi t&GHIlX)DE AUTlloRITY ii GS

~

O 2120 11 HAY 1'980 15 00"52.2 nbo213H 122o173M 3.60HL 1 H ORIGIHAL Dn'I'A SOURCE ~ GS EARfttaatKE ASSOCIATED MITH VOLCAHISH.

4 P AND/OR P'RRIVALS USED IH HYPOCEHTER SOLUTIOH ~

3.60HLi HAGHXlXJDE AUI'I(ORITY ii Cis 2121 11 HAY 1980 22 46-24.5 nba214H 1>&1 190M 3aBOHD 2 H ORIGIIW DA'fn Sol¹CE GS 8 EARTttouhKE ASSOCIATED uDH VOLchHISH.

19 P AFJD/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.=

4 OOHLi HAGHITUDE Alflr(ORITY ii GS

~

2122 12 HAY 1980 05 24 36.2 46.211N l~il83M 3.60HD H ORIGItlkL DATA SOURCE ii Gs EARfttoUAKE hs'OCIATED MITH VOLCANISH ~

5 P AHD/OR P ARF(IVALB USED IH l IYPOCEtlTER SOLUTIOH ~

3.50i&> HAGNITUDE AUTHORITY ~ Gs 12 HAY 1980 12 11-Win nbs214H 1~+.1191M 3.50HL 1 H ORIGItlhL DATA SOUND -- GS EAR'fttouhKE hssocrnTED urrx vaLcnNIBH.

10 P AHD/OR P'RF(IVALB USED IH HYPOCEHTER SOLUTIOH

3. iOHLi HnaiHITUDE AUTtloRIfY i GS i124 12 HAY 1980 16 26 29'7 46.220H l~o179M n,eoHD H ORIGXNl'J DATA SOURCE . ~ Gs EARTHOUAKE ASSOCIATED MITll VOLchNISH.

HAGNITUDE n.nHS Hs COHPUFED PRON LottGWERXOD VERTICAL COHPONEHT, 41 P AND/OR P'RRXVALS USED IH tlYPOCEHTER SOLUTIOH.

4.90t(L l'lAONITUDE Alflt(ORITY GS MOODMARD-CLYDE CFFHBULTAHTS 23 APR 81

9 WOODWARD-CLYDE COt(BULTANTS 23 APR 81 Q

PAGF 14'9 CAT. DATE TItf8(GHT) LAT LONG SL INTEN HAG SH H DIS 0 S LOCATION hND COHHEtlTS NO. DAY-HO-YEAR HR-HIN-SEC (HH) (KH) (KH) 2125 12 HAY 1'980 16 46 50.3 46.215N 1>>.176M 3.70HL 2 N ORIGINAL DATA SOlJRCE i" GS O EART)(QUAKE ASSOCIhTED MITH VOLCANISHo 5 P AND/OR P ARRIVALS USED IN HYPOCENTER SPLUTION ~

3.70t(L, HAGNITUDE AlrrHORZTY . GB 2126 12 HAY 1980 17 24 11.9 46.218N 122 184M

~ 3. 60HL 1 N ORXGItJAL DATA SOUfiiE ~ GB EARTHQUAKE ASSOCIA'TED MIT)l VOLCANISH.

2 P AND/OR P'RRIVALS USED IN klYPOCENTER SOLlJTZON 3.60HLg HAGNIT(JDE AUTHORITY ~ GS 2127 12 HAY 1980 20"33 40o7 46.251N 1+~+s309W 4.40tlD 10 N ORIGINAL DA'fh SOURCE . GS EARTHQUAKE ASSOCIATED WITH VOU ANISH.

27 P AND/OR P'RRIVAL. USED IN HYPOCENTER SOLUTXON.

4.60t(Lg HAGNITUDE ALJTHORXTY ~ GS 2128 13 HAY 1980 01 30-53.4 46.314N 121.892M 4.00HL 5 N ORIGItJAL Dh'fh SOURCE i- GB EARTHQUAKE ASSOCIATED MITH VOLCANISH.

HYPOCENTER SOI UTION DEP'1H REBlRAINED DY GEOPHYSIST.

7 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION 8 4.00HLy HAGtJITUDE AUTIJORXTY ~ GB 2129 13 HAY 1980 08-59-55.6 46.214N 1 >~.157M 4.00HD 1 N ORIGINAL DATA SOURCE = GB EARTHQUAKE ASSOCIATED MITH VOLCANISH.

10 P AND/OR P'RRIVALB USED IN ttYPOCENTER SOLUTION.

3 ~ 60HL, HAGtJITUDE AUTH(lRXTY GS 2130 13 HAY 1980 11 12 12.9 46.205N l~.'++1M 4.00HD 8 N ORIGINAL DATA SOlJPiCE i GS EARTHQUAKE ASSOCIATED WITH VOLCAttISH.

13 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

3.70HLp t"A(JNI11lDE AUl'IIORZTY ~ GS 2131 14 HAY 1980 02 18 57.8 46.224N 122 169M

~ 4. 60HD 2 N ORIGINAL DATA SOURiCE = GS EARTllQUAKE ASSOCIATED MXTH VOLCANISH.

29 P AtlD/OR P'Rf,'IVALB USED IN tlYPOCENTER SOLUTION .

4.5OHL, HACNXmDE AumORZ TY GS 0 8

2132 14 HAY 1980 05 00 49s3 46.218N 122.191M 20HD 1, N ORZGINAL DAfh SOURCF = GS EARTHQUAKE ASSOCIATED lJITH VOLCANISH.

9 P AtlD/OR P'RRIVALS USED IN llYPOCEN"lER SOI UTION.

3,50HL ~ HAGNITUDF AU11IORITY ~ GS 2133 14 HAY 1980 09 43 51e8 46.218N 1>>.184M 4.00HD 2 N ORIGINAL DATA SOURCE i- GS EN%I)QUAKE ASSOCIATED lJITH VOLCANXSH.

14 P A)JD/OR P ARf(IVALB USED IN HYPOCENTER SOLUTION ~

3 70t'tLr HAGNITUDE AUTllORITY ~ GS 2134 14 HAY 1980 14 08 lb.4 46.Z~>+ 122.172M 3.90HL 2 N ORIGItJAL DATA BOURCE < GB EARTttQUAKE ASSOCIATED lJITH VOLCANISH.

11 P AND/OR P'RRIVALG USED 'IN llYPOCENTER SOLUTION.

/ 8 3. 90HL ~ HAGNIT(lDE AUI'HORITY GS

'r

< 9 MOODMARD-CLYDE CONSULTANTS 23 APR 81 PARF l.-.n

l.

WOODWARD-CLYDE COHSLJLTANTG 23 APti 8l PAGE 150 CAT ~ DATE TI)IE(GI1T) LAT LONG SL INTE)t HAG SH H DIS Q 8 LOCATION AHD COHHEtlTS ttO. DAY-Ho-YEAR HR-HIH-~ (HH) (KM)(KH)

Q 2135 14 HAY 1980 18"48 02.2 46.207H 1>M.176M 3. 60llL 1 H ORIGINAL Dhrh SOLJRCE . GB EARTHQUAKE ASSOCIATED MITH VOLChNISH.

5 P AHD/OR P ARRIVALB USED IH HYPOCE)ITER SOLUTION.

3.60HL, MAGNITUDE hlfr)LORITY .-: GS 2136 15 HAY 1980 06"-ne=2n.7 46.208H 122. 185M 4.00HB 2 N ORIGI)IAL DATA Sot)aCE GB EARTIIQUhtw ASSOCIATED WITH VOL CANISH.

7 P AHD/OR P'RRIVALB USED IH HYPOCENTER SOLUTIOH.

3. 60HL t(AGHITUDE AUTHORITY GG 2137 15 HAY 1980 09 13 Ooil 46.220H 122 ~ 174LJ 3.80HL 1 H ORIGIHAL Dh'I'h SOURCE ~ GS EARTHQUAKE ASGOCI*TED MIl'H VOI CA)LISH ~

5 P AHD/OR P'ILRIVALI USED IN )IYPOCEHTER SOLUTIOH.

3.80m., HRGNITLJDE AUTIIORITY GG e 2138 15 HAY 1980 il nl 34.6 46.213H 122.195M 4. 90ts 2 H ORIGIHAL DATA SOIJRCE>> GS EARTHQUAKE ASSOCIATED MITH VOLChHISH.

HAL'.HIT))DE>> 3.6HS HS COMPIJTED FROH LOHG-PERIOD VERTICAL COHPOHEHT.

16 P AHD/OR P'RfiIVALB USFD IH HYPOCE)ITER SOLUTION.

4. 60HL HAGHITUDE A'UTHORITY - GS

' 2139 15 )IAY 1980 17 29 lb.8 46.214H 1>>.168M 3 60N

~ 1 H ORIGINAL Dhfh SOURCE >> GB EARl'HQl)AKE ASSOCIATED WITH VOI.CAHISH.

6 P h)ID/OR P'IL);IVALG USED IH HYPOCEHTFR SOLUTIOH.

3.60I(L, mGNITUDE AURIORITY GB 2140 16 HAY 1980 o3=31-.on.7 n6.215N x~.181M 4.40MB N ORIGINAL DATA SOLJRCE GB 0 EARTIIQUAKE ASSOCIATED MITH VOLCANISH.

11 P AHD/OR P'PiliIVALB USED IH )IYPOCEHTER Sol UTION ~

3.701(Lg ILRGHITUDE AUTHORITY .. GS 2141 16 HAY 1980 07.30:25,9 46.>~>N 122.200M 3. 40N 1 H ORIGIHfi. Dh'fh SOURCE>> GS EARTHQUAKE ASSOCIATE)) LJITH VOLCAHISH.

7 P AND/OR P'RfiIVAI.B USFD IH HYPOCEHTER SOLUTION.

3,40ILL, HRGNITLJDE AUT)IORITY GS 2142 16 HAY 1980 11-15=13.9 46i213H 122.174M ~

3.50ML 1 H ORIGItthl Dh'rh SOLJRCE . GB EARTHQLJAKE ASSOCIATED WITH VOLCANISM.

6 P AHD/OR P'ILRIVAL) USED IH IIYPOCEHTER SOLUTIOH.

3.50HL, HAGNITLIDE AUI'HORITY . GS O 2143 16 HAY 1980 12"34 5ni1 nba2>~>t 122.168M 4.60HB 2 H ORIGIHAL DATh SOURCE>> GS EhRlHQllhKE ASGOCIh'fED MITH VOI-CAHISH.

MAGHITLJDE>> 3.7HB HS COMPIITED FILOH I O)IG-PERIOD VERTICAL COHPOHEHT.

2 P AHD/OR P'RRIVAI 8 USED IN HYPOCEHTER SOLIJTION.

4.70HL, HAG)IITUDE AUIHORITY GS 2144 16 HAY 1980 13 27 13.5 nbi211H l~~i182M 4,30HB 3 tl ORIGINAL Dh'rh BOLJRCE 8-EARTIIQUAKE ASGOCIhTED LJITH VOLCAHISH.

8 WOODWARD-CLYIIE CO)ISLJLTANTG 23 APR 81

'i 9 ~@ &+ f Phl)F ]BI

MOODMARD-CLYDE COHQJLTAHTS 23 APR 8~

Ph(JE 151 CAT. DATE TI(iE(GHT) LAT LONG SL IHTEH HAG SH H DIS O 8 LOCATZOH AHD COHHEHTS Ho. DAY-HO-YEAR Hlt-HIH-SEC (NH) (KH) (KM) 15 P AND/OR P'RRIVALS l)SED IH HYPOCENTER SOLUTIOH.

3.90NLy HNNITUDE AUll(ORIl'Y =. GS 2145 16 NAY 1980 14-~-00.3 46 216N 122e175M

~ 4.20HD 2 H ORIGZML DATA SOURCE ~ GS EARTHQUAKE ASSOCIATED MITH VOLCAIIISH.

, 11 P At(D/OR P'RRIVALS USED IH HYPOCEt(TER SOLUTIOH.

4.00HL HAGHIlllo'E AU('HORZTY = GS 2146 16 HAY 1980 16=17 44.5 46.208H 122 192M

~ 3.90MB 2 H ORIGIHAI DATA So(IR(X ~ GS EARTIIQUAKE ASSOCIATED LIITH VOLCAt(ISM.

8 P ht(D/OR P'RRIVALS USED IN IIYPOCEHTER SOLUTIO)I.

3 ~ GONLy HAGHITUDE AUTHORIl'Y ~ GS 2147 16 HAY 1980 22-34.05.4 49,601N 127,891M 5. Oot(B 10 H ORIGIHN DATA SOIJRCE c Gs HAGHITUDE= 4.9HS HS CONt(JTED FROH LOH( PERIOD VERTICAL COHPOHEHT.

HYPOCEt(TER SOLUTZOH DEPTH RESTRAINED BY GEOPHYSIST.

94 P At(D/OR P'RRIVAI 8 USED It( IIYPOCEHTER SOLUT'IOH.

6 2148 17 HAY 1980 08 05 52eb 46 '12)I I'++r18bll 'rbOHB 1 H DRIGIHAL Dh'IA So(JRCE ~ GS EARrHQ(LAKE ASSOCIATED MITH VOLCANzsM.

6 P At(D/OR P'RRIVALS USED IH IIYPOCEt('TER SOLUTIO)I, 3.60HL ~ IrhGHITUDE AUTIIORITY ~ GS 2149 17 HAY 1980 08"31 53ro 46.200N 122.198M 4.20MB 4 N ORZ(.ZHAL Dhfh SOURCE 8(

EARTHQUAKE ASSOCIATED MITH VOLCANISH.

18 P Atro/OR P'RRIVALS USED IH IIYPOCEHTER SOLUTIOH.

3.90ML, HAGHITUDE AUTHORITY GS 0 2150 17 HAY 1980 19 27 53.4 46.201H 1++a168M 3.80HB 5 N ORIGINAL DATA SOURCE ~ GS EARTHQ(LAKE AssoczfrrED MITH VOLCANISH.

7 P NID/OR P'IWIVALS USED IH HYPOCEHTER SOLUTIotl.

3.60ML, l<<~Gt(IT(IDE A(rrHoRITY .. Gs 2151 17 HAY 1980 21-42-07.4 46.213H 1~~.170M 4.20HB 4 H ORIGINAL DA'fh SOURCE GS EARTIIQUAKE ASSOCIATED MITH VOLCAHZSH, NAGNITUDErr 3, 7MS NS COHPUfED FROH LONG-PERIOD VERTICAL CONKHENT ~

16 P AHD/OR P'RRIVALS USED IH HYPO(:FHTER SOLUTIOH.

3.90HLg HAGHITlJDE AUIHORTTY .= GS 2152 18 HAY 1980 01 50 52.1 46,207H l~ 186M

~ 3,80HB R N ORIGlt(AL Dhrn so(JRCE Gs EARTIIQ(LVW ASSOCIATED MZTH VQLCAHZSH.

13 P AHD/OR P'M(IVALS USED IH IIYPOCEt(TER SOI.UTIotl.

3.70HL, HAGHITUDE AUTHORITY GS 2153 18 HAY 1980 06".20 36. 1 46.207H 1>>. 180M 3.90MB 5 N ORIGXIIAL DATA SOURCE ~ GS EARllIQUAKE ASSOCIATED MZTH VOLCAHISN.

ll P AND/OR P'MiIVALS USED IH t(YPOCEHTER SOLUTIOH.

3.70HL, HAGHzll(DE A(HII()RZTY - Gs MOODMARD-CLYDE CONSULTAIrrs 23 AFR 81 Ph('F 1fi2

Q MOODMARD-CLYDE CONSULTAtrrs 23 APR 81 a.

PAGE 152-CAT. DA'rE TINE(GJ(r) LAT LONG SL IN'lEN HAG SH H Dxs Q 8 LOCATION AND COHHENTS No. DAY-Ha-YEAR HAIN-SEC (HH) (KH) (KH) 9 2154 18 HAY 1980 14 3i'0.6 46.209N 1>M.178M 4.00)ln N ORIGINAL DATA SOURCE =. GS EARTHQUAKE ASSOCIATED lJITH VOLCA)JISH, 7 P AND/OR P'fNIVALS USED IN HYPOCEtlTER SOLUTION.

3.60HLy HAGttxlllDE AUTHORITY ~ Gs 2155 18 ViAY 1'980 15 32 11.4 46.214N 122.194M V 4.70HD N ORIGINAL DATA SOURCE -- GS Ehrm~QUAKE AssacxmEn MITH VOLCANISH.

HAG)JITUDE< 5.8$

HS COHPUTED FROM LONG-PERIOD VERTICAL COHPONENT.

REPOR1ED FELT INFORHAfXOtl.

57 P AND/OR P'RRIVALS USED IN HYPOCENTER SOLUTION.

5.00HLg HAG)JITUDE Au'rtlaRITY ~ Ga 2156 1'9 HAY 1980 07" 18250. 4 46.202N 1'+>. 197M 4. 20HB 19 N oRIGINAJ nh'rh soURcE Gs EARTHQUAKE ASSOCIAI'ED MITH VOLCANISH.

11 P AND/OR P'RRXVAl.s USED IN llYPOCE)!TER SOLUTION.

3.80HL HAGtlxlxlnE AUTHORITY - Gs 2157 19 HAY 1980 14"21 56.9 46.211N 122.196M 3,70HL 18 N ORIGINAL DATA SOURCE ~

Gs 9 EARTHQUhKE ASSOCIATED MITH VOLCANISH.

5 P JPJD/OR P'Rr,'IVAl..c USED IN tlYPOCENTER SOLl)TION 3.70HL HAGNIl)JDE AUt'ttGJtx'rY ~ GS 8

2158 21 HAY 1980 16 02 31.6 46'93N I>+e197M 3. 30HL 16 N oltxoxNAL DA'rA sa! JRCE -. Gs EARTIIQUAKE ASSOCIATED MITH VOLCANISH~

6 p AND/OR p emxvALG usED IN t)Yr ocENTER soLuxxoN 3.30HL HAGNIT)JDE AUI'HORITY - GS 215'9 24 HAY 1980 23 01 23.6 46.333N I'~>.197M 3.80HL 8 - N ORIGI)JAL DArh sa(JRcE . G'.

EARTttQUAKE AssocxhrED MDH VOLCANISH.

11 P AND/OR P'Pd'IVALS USED IN HYPOCENTER SOLUTION.

3.80HLy HAGNITxlDE Aurl(ORITY ~ GS 2160 28 HAY 1980 14 15 31.5 46o338N 1~.211M 3.80l& 7 N GRIGINAl DhTA saURcF Gs 0 EARTHQUAKE ASSOCIATED UITH VOLCANISH ~ o [

REPORfED FELT INFORt'lh'IION.

13 P AND/()R P'RRIVALS USED IN HYPOCEtlrER soLuTION.

3.80HLr HA(NITUDE Ault)ORI I'Y ~ GS 0 2161 28 HAY 1980 14 18-30.0 46.338N 1~.200M 3.60HL 8 N ORIGINAL DATA Sol)RCE ~ Gs 9 EARTJJQUAKE. AssocxhTEn MITtl VOLCA)JISH. e f REPOR'JED FELT X)JFORJWI'XON.

5 P A)in/OR P'RRIVALS llSED IN HYPOCE)(TER SOLUTION.

3 60HL ~ HAGNITUDE AUTI)ORITY

~

I'S 9 2162 8 JUN 1980 22 40 09.8 47 950N 1>M.017M IV 3.50HL 51 N ORIGINAL DATA SOURCE G.

9

~

REPORTED FELT INFORHATION, 13 P AND/OR P'RRIVALS USED IN HYPOCEttTER SOLUTION ~

3.50t(L ~ HAGNITUDF At)11(ORITY ~ GS MOODMARD-CI YDE CONSULTANTS 23 APR 81 PAGF 1 l)3

t l

MOOI4)ARD-Cl YDF CONQJLTANTS \g ~ ~

~

0 PAGE 153 CAT. DA'fE TIt(E(GN ) LAT LONG SL ItffEN FAG Stt N DIS 0 S LOCATI OH AND COtltlEHTS NO. DAY<$0-YEAR HR-tlIH"SEC (t!N) (Ktl)(Kti) 2163 18 JUH 1980 11 41 31.0 48.500H 119.619M 3sOONC UM DEP fH CONSTRAINED.

THIS IS A UM PRELXNIHARY LOCATION.

2164 23 JUH 1980 16 05 15.9 47.517H IM.&3M V 3.10M 3 H ORXGIHfJDATA SOURCE e GS REPORTED FELT IHFOR."(ATIOH.

4 P AtlD/OR P'Rl'IVALS USED IN llYPOCEHTER SOLUTIOH ~

3.10i1L, HAGHITUDE AUTHORITY - GS 2165 23 JUH 1980 16 09 54 4~ 47.533H 122.250M V 3.00tnL 3 H ORIGINAL DATA SOURCE ~ GS P~RTED FELT XHFORt!ATIOtL 8 6 P AND/OR P'RRIVAl 'SED IH tlYPOCEtlTER SULUTIOH,

.I 3.00t!Lp tNGHITUDE AUfM!RXTY ~ GS

'@ 2166 7 JUl 1980 01 17 06.0 45.219)l 121.686M IV 3.30HL 5 N ORIGINI< DA'rA SOURCE f8 REPORTED FELT IHFORilATIOtL HYPOCEtffER SOLUfION DEP'IH RESTRAIHED BY GEf)PtlYSIST.

6 P AND/OR P'RRXVALS ltSED IH HYPOCENTER SOLUTIOH.

3.30tlL NAGNITUDE AUfttORXTY - GS 2167 15 JUL 1980 14 29 19.9 43 480l'l 127.063M

~ 4. 50t(D 15 H ORIGIHAI DATA SOURCE ~ GS HYPOCEttl'CR flOLUTIOtl DEPTH RESTRAINED BY GEOPHYSIST ~

9 P AND/OR P'RRIVALS USED IH tffPOCEHTER .ABLUTION 2168 3 AUG 1980 08 24 02.0 .42.399N 125o708M 4.50HD 15 H ORIGINAL DATA SOURCE r. GS NAGHITUDE= 3. 2HS tlS COt(PUTED FROll LOt(G-PERIOD VERTICAL COt!PONEHT.

HYPOCEtffER SOLUf ION DEPTH RESTRAIHED BY GEOPHYSIST ~

P AND/OR P'RRIVALS USED IH lfYPOCEHTER SOLUTIOH.

2169 3 AUG 1900 09 04 23.4 42,348H 126.197M 4.50t!D 15. H ORIGIHAI DATA SOURCE ~ GS HYPOCEHTER SOLUl'XOH DEPTH RESTRAINED BY GEOPHYSIST.

11 P AND/OR P'RRIVALS USED IH HYPDCEHTER SOLUTIOtl.

2170 3 N)G 1980 14"43 04.2 42.498H 124.560M 4.50tu) 15 N ORIGIIA'A'I'ASOURCE > GS HYPOCEHTER SOLUTIOH DEPTH RESTRAItKD BY GEOPHYSIST.

10 P AND/OR P'RRIVALS USED IH tlYPOCE)lTER SOLUTIOH ~

2171 4 AUG 1980 09'40 44.7 42.346H 126.937M 4.40NB 15 H ORIGIHAl DATA SOURCE = GS HYPOCEtllER SOLUTIOH DOTH RFSTRAIHED BY GEOPHYSIST.

8 P AHD/OR P'RflIVALS USED IH HYPOCEtffER SOLUTIOH.

2172 '9 AUG 1980 05 31-b8.3 43.796H 127.781M 4,60HD 15 ' ORIfiIHAL DATA SOURCE ~ GS llYPOCEtflFR SOLUTIOH DEPTll RESTRAItfED BY GEOPHYSIST.

26 P AtlD/OR P ARRIVALS USED IN l lYPOCEtiT ER SOLUT IOH 2173 19 SEP 1980 22-"53-"14.5 47. /69H 121.886M 'V 3.80tlL 5 H ORIGINAL DA'I'h 80(tRCE GS POR I ED FELT It(FORt(ATIOtl.

HYPOCENTER SOLUTIOl'l DEPI'H AFSTRAItlED BY GEOI HYSIST.

13 P AND/OR P'f(RIVALS USED IH HYPOCEÃfER SOLUTIOH.

NAGtlITUDE AUTtlORITY ~ GS t P ~

WOODWARD-CLYDE CONNlLTA."ITS 23 APR 81

~ ei PhAF 1! In

Q MOODMAIUI-CLYDE CONSULTA."ffS 23 APR 81 el'AGE 154 CATe DATE TIME(GHT) LAT LONG SL IlfrEN mr SH H DIS O 5 LOCATION AHD COHHEHTS NO. DAY-HO-YEAR HR-HIH-SEC (MM) (KH) (I(H) 2174 21 SEP 1980 17 45-18.7 47.918N 121'813M 3. 40MI 5 H ORIGINAL DATA SOURCE ~ GS REPORTED FELT IHFORHATIOH.

HYPOCEKIZR SOLlffIOH DEPTH RESTRAINED BY GEOPHYSIST. ~,

9 P AND/OR P'RRIVALS USED IH HYPOCENTER SOLUTIOH.

MAGNITUDE AUTHORITY ~ GS Q

(.

2175 19 NOV 1980 21 35 23,8 46.951H 119 47bM 3e30MC UM DEP'f M CONSTRAINED. 'T

~

TIIIS IS A UM PRELIHILIRY LOCATION. O

~ i Q

2176 18 DEC 1980 22:44-29.2 45.815II 120.005M 3.50HC UM DEPT)I CONbWRAI RED.

1'HIS IS A UM PRELIMINARY LOCATION~ e)

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I Q

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MOODMARD-CLYDE COHQJLTNITS 23 APR 81

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~4~ 0 The Cenozoic kinematics of the Pacific NW, from Eaton (1979).

Elements of Columbia Plateau deformation added.

Figure 1

Experimental extensional block mosaic, after HcGill and Stromquist (1979). Compare Fig. 9.

Figure 2

Elements of rigid block motion, from l.aubscher (1965), map view.

Figure 3 c eco// eme~P ho/-roon Elements of decollement kinematics, cross-section, from Laubscher (1965).

Figure 4

SDVTIIfVEST NDRTHFAST 0.0

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p ~g~<.i ~~<<.i ~'4 >p~l P~~iw~w<A('+ w +<<< << ~/

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-43 Oklahoma APPRDIIIt fATQ Y ItID VfRTICAl E5tGGfRATIDA'AILE

-Migrated seismic profile across wrench-fault xone in Ardmorc basin of Oklahoma denlonstrating flower-structure gcomctry (adapted from unmigrated interpretation by R. F. Gregory and F. C. Lookabaugh, f973). hfsp, Mississippian Springer, hfsy, Mississippian Sycamore; and Ooc, Ordovician Oil Crcck reflectors.

T, displaccmcnt toward vicwcr, A away from vicwcr.

~

"Flower-structure" in a wrench fault zone, from Harding and Lowell (1979).

Figure 5

Small-scale structure in the Columbia Plateau Folds.

Dotted: interf 1 ow 1 ayers.

Figure 6

a /I pp, ALg y ~

~ ~ s ~

./-

1 l"

Plastic relief map of 'the western Columbia Plateau and the adjacent highlands.

figure 7

0 Upper Jurassic MdCke Jivassic b

.r i ~ ..$ +

Stages in the spreading of static instabilities, Spriiscl structure. ncavy lines:

decollcment and thrusting. Double lines: kink bands. Thc main incompetent intervals arc shaded.

Stages in the development of the Goumois.S antielinc.

Decollement, ramps, blind trusts and kink folds in the Jura, from Laubscher (1977) .

Figure 8'

DISHARMONIC FOLDING ON A BLIND THRUST RIDGE HOMOCI.INE MOHOCI.INE KINK BAND NUCLEATED BY AN EMBRYONIC THRUST Possible interpretations of the deep structure of Yakima fnlds.

Figure Qa

V C

at C

r Kinematics of the Columbia Plateau and its surroundings, tentative concepts; compare Figs. 1(e), 2, 14.

Figure 9

N ds =700m

~ 'I one dh =320m o

I I I

<e (ramping on a thrust of 25 dip) dh As =700m

'I

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~ gl Vantage ds =630m Vantage 2 km Estimates of compression in Umtanum Ridge, after 8entley (1977) .

Adjusted from the original which is vertically exaggerated.

Figure 10

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Figure ll

A cut-paper kinematic model of rigid-body Yakima tecton'ici, Figure 12a

A cut-paper kinematic model of rigid-body Yak ima tectonics.

Figure 12b

A cut-paper kinematic model of rigid-body Yakima tectonics.

Fi gure 12c

A cut-paper kinematic v..odel of rigÃ.-body Yakirra tectonic~.

Figure 12d

A cut-paper kinematic model of rigid-body Yakima tec'i..~ic .

Figure 12e

l24 > o0 Anacortd I22 a

I20 lop Colville II6' pkanoga Sandpoint Neah Bay va Port wnsend ttewpolt

..I Port nile 0: Op+ ~Everett 48' Mason Cit 7954 Monroe Coeur D'lene \

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~ ~ ~

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Shelton Olympia ttT RAI HI@3 Lacrosse Aber ei nsbt{jj l44Ptl 0 l

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l Ijgg >ov 0  : J0033

.,~ra Grande Silverton Salem ~ ~

ccall Baker Corvallis Albany ascade Prinev'lie g500 " +teaser Redmond 0 Sddd~ PhgartO.:::

50 {00 MILES 0 50 I00 KILOMETERS O N ~adwdll The IOOL block belt and regional crustal isopachs (after Smith 1978). Compare Fig. 17. Figure 13

l24 o jAnacort yp~

a ~o I20'ano a Sandpoint Neah Bay va Port townsend Newport Port Angele 0 I 48

<Everett ll6'ellogg a oncit O D'lene

~ 7954 Monroe ~ 26 l Coeur bA~

S H T 0 Spokane St Marie p

I

%"ena tchee-24 Seattle Cle Elum 0 Tacoma I

Shelton 0 Olympia MT RAINIER ens urg L c osse Aberdee l4408 ~

l 0 l Raymond Connell 0 Orofin Chehalis 0 Bluffs Srtalfe Ri>

akima Lewiston Pasc MT QOAMS Castle Rock I0 Or Prosse

%alla%'all 46 storia Kelso 0 0

~bi6 gil>QI G ran geville got 22 Vancouver 22 0 Pendleton T e Dale 26 Portland MT gtooD 28 0 r 0033 Silverton /f +s La Grande Mccall Salem Baker Corvallis Afbany Cascade Prinev lie 0500 Weiser 0 50 rnasg ~ ~ /

Redmond p IOO MILES Ontario 0 50 IOO KILOMETERS 0 C ldwell Crustal isopachs of the Columbia Plateau, estimated from seismic and gravity data. Figure 17

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c

~/i'%lay experiment of ellipsoidal domal uplift. Faults Originally circular imprints are sli ghtly Contour lines deformedinto ellipses. -q~- Deformation Explanatory sketch illustrating the experiment. "'"p Domes and grabens, after Cloos (1939).

Figure 19

LII Ml I HI( H VOL C At%I(

0 OR AIII1 RRANI IL'1 C OL LI IA BI A PL A1 b2 L A Li I

1st ttt'L If 1 I]I PL All AUr '.....

6 0 K)//SEC 6.1

?0 7 a

ug 66 8.1 7 ra 40 8,) >

from Ibe Canadian border Figure 77. Crustal wrurtual of Ihr I olurobl ~ Plateau atuof,'orth~orb prolilr 7 btrueture <<lthlo tbe Colurnbi ~ Plateau h cooslralord b> Eaton' anal%sf%

iota cast Orctuo lsce Fie. 2).

blasts recorded oo tbe Paleo Blilo seismograph oet<<orb (J. P. Eaton, 197b, oral commun.).

of ifuarr) oo <<hfch varlatloos lo lltucturc bet<<cco granitic Lfpper plot ls reduced travcltime curve of first arrlvah IP )

~ tcau ls based IHlll, 1972). S>mbols 0 aod H

'Nasbioftoo aod Columbia Pl lodieatc terrene of oorthertt the I<<o qP or I ttrumcotatloo Ulled lu record Ibe dat ~ flee HIU, '1972),

FrOm Hi 1 1 (]978)

SHETLANO LSI.. VIKING GRABEN NORWAY 0

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MIO. JURASSIC TERTIARY BAJOC. BAT H,

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Figure 20

AN OE5 NW Bar inilas SE 300 I L. M rr Ib 200 100 Barinas 245 0 se dime nts 245 265 260 268 IO 10 270 270

" 290 20 30 40 310 40 EXAGERACS5N VERTICAI.

2il A deep crustal section through the Venezuelan Andes, after Wittke (1977) .

Figure 21

CLEW 0

208m CL EW 0

IO Vertical Exaggeratian5X Clew, simplified as a small-amplitude crustal fold.

Figure 22

CLEW 20k m CLEW NIN ANOES ear ini las SE 300 I L. M It ROD I 00 I

0 sedime nts Ia 260 268 IO 270 270 20 20 290 290 lo 30 40 3 IO 40 EXAGERACION VERTICAL 20 2il Ver t ica I Exagqer at ion 5X A superposition of Figures 21 and 22.

Figure 23

MILLICAN HORSE RIDGE SUMMIT PINE MTN.

L Og~

BROTHERS ly~.

10 STATUTE MILES 10 KILOMETERS Figute 2.5N-1 Major topographic linear features within Brothers fault zone, central Oregon: Most features between Horse Ridge Summit and Brothers are scarp-like slopes on the south. western margin of elongate ridges.

See text for discussion.

EDGE OF BASALTS

.,'::::AREA OF,';;:;j'~

,',",:'.:::,:::.:. MAJOR'.;::::.:-:;~~.

i':i"-":::::FOL'DING:.i::::::::Q (9 r

au 0 75 150 KM'lKES 0'0 '100 Ml Figure 2.5N.2 Generalized distribution of feeder dikes for Columbia River Basalts. The edge of tha basalt field and the area (stippledJ of major folding within the basalts are also shown. Dike distribution from Swenson and bVright (1978J.

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0 jt MILES X WFZ Figure 2.5N-3 Iylajor structural elements of the southwentral Columbia Plateau, IVashington (from Kienle and others, 1978J. The approximate boundaries of Laubscher's Cle EIum Wallula lineament (CLEWJ are designated by heavy dots. I, II, and IIIare structural domains within CLEW that are discussedin the text. Stippled areas are cities of Ellensburg (EJ, Yakima (YJ, Richland (RJ, Pasco (PJ, and Kennewick (KJ.

S THRUST. FAULT MODEL

/ y r'/

f LANDSLIDE MODEL Figure 2.5N4 Alternative structuralinterpretations for surface ground ruptures along Toppenish Ridge.

RAWLEY OUARRY n N YELLEPIT WALLULA GAP FAULT g WALLAWALLA SSIGHAM'S FAROOOUI II474)

LOCAUTY A pX ~ LOCAUTY C SUROKER COLLEGE PLACK FAULT EARTHOUAKE WASHINGTON

~ 4/4//4 OREGON Se

/f x ~ i ~

" "" . ~

~ X 4~ g y ., ~ 44ILTON+REEWATER 0 3 0 MILES 0 ', 3 0 0 KILOMETERS F igute 2.5N-5 Tectonic map of Iyallula fault zone and vicinity (from Kicnle and others. 1979J showing localities (diamondsJ whore Quaternary faulting is confirmed or suspected. Also illustrated am the locations of "Bingham s linear" (triangleJ and the epicenter of the 1979 College Place earthquake (black circleJ.

Cl 2 S VA Aghv~ > pp7l L..r.:-..

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e ~

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Ie 5/5. "Asjgf< J7 s.~>~M(?) x ln I

0 20 Figure 2.5M-G '"fhick-skinned" tectonic interpretation for Columbia Plateau folding and faulting from Bentley (1977J. Note vertical exaggeration...

S 0 50 COLUMBIA CLEW RIVER U BLUE MTNS 0 Y R HH CH 50 I

Figure 2.5N-7 '"fhin-skinned"crustaf'decollement interpretation for Columbia Plateau deformation from Laubscher (1981; 1980 ms7.

Figure 2.5N4 Hypothetical stagesin the kinematic development of doubly-vergent anticlinal structures on the columbia Plateau (e.g. Umtanum, Gable lvlountainf. Large arrows represent direction of northcouth shortening responsible for folding and secondary faulting. Length of arrows on fold axial traces indi.

cates relative dip of fold flanks (the shorter the arrow, the steeper the dip J.

/b

/

/

/

I c o /

/b o /

/

/

/

/

/

'G

/

Figure 2.5N-9 Diagrammatic kinematicinterpretation of the %allo!a fault zone (compare with Figure 5). Dextral displacement along the yyallula zoneis accounted for by differential extension of the southern wall of the zone across en echelon normal faults. AA; BB; CC'illustrate hypothetical linear features with progressively greater offsets to the northwest.

-.<<.<<LB

~

0 15  :,.:.'::::t::.t.r km

"'..::..'::-:.:.:,'.HB.-':::."'" "

~ OIL WN FIELD Figure 2.5M-10 Generalized tectonic map of Newport-Inglewood fault zone, Los Angeles Basin, California (after Harding, 1973; Yeats, 1973J.

. WEST EAST CLEW = A~8 Figure 2.5N-11 Kinematic interpretations of differentiel response ofplateau stratigraphic units (AJ and deeper

basement" rocks (BJ to north mouth compression ln the Columbia Plateau. Although a simple tronscurrent faultis shown offsetting basement rocks, such faulting may bo considerably more diffuse and the width of the zone of shearing may increase northwestwards from CLEW structurol domain II to domain I (see Figure 3J. 7he structural elements which define CLEW (Laubscher, 1977, 198 1J are Interpreted as Interference phenomena between the two styles of deformation. Faulting characteristic of B appeors to extend to surficial levels within CLEWdomain III, the Wallula foult zone.

~ ~

8108yg0~y0 WNP-2 Q. 421.001 Describe the management interface controls for QA act ivities between WPPSS,and the principaL contractorsi i e r Burns Roe'echteli and General Electrics to assure proper imple" mentatio'n "of the QA program.

Response

Interface controL for site activities is defined and main-tained by proceduresi 'WNP-2 Proj ect Management Instructions (PNIs). These instructions define and control the signifi=

cant interfaces on the siter primarily 'those'etween the SuppLy Systems Burns 5 Roe'echteli and General ELectric.

Some of these instructions .also controL major common working interfaces wi'th, other site cont ractors.

f This control is augmented and/or verified by such means as Supply System management meetingsr, QA audit =programsr QA surveillance and similar overview by other Supply System organizationsr and the Program Director "s monthly program rev i ew.

WNP-2 Q. 421 .002 CLari fy i f the " ...- Corporate QA Program" (Ref. p. 3) is the same as the " ..'.'" Project QA Program" (Ref. p. 12) .

Response

The Supply System has a Corporate Design and Construction QA Program which establishes project QA policy. The words "Corporate QA Progra'm" and 'Project QA Program" were in-advertentLy included. The reason for use of these words relates to the fact that impLementation of the Corporate QA Program at WNP-2 di f fersi in having WNP-2 unique proceduresi from .that of the other sites and the home office. These differences arise from the unique,organization/administrative structure of each project.

We have deleted the =words "Corporate" and "WNP-2"r noted in the questions from 17.1.1 of the FSAR.*

• Draft FSAR page changes attached.

W NP-2 AMENDMENT NO. 17 July 1981 As the license applicant, the Supply System i~s responsible for the plant. Therefore, the Supply System %%24 QA. Program and its implemehtation has been structured to assure that design, procurement, and construction activities are accomplished- in accordance with sound engineering principles and practices.

Systems, components, and structures that are safety-related,

'in the context of 10CFR20, 10CFR50, and 10CFR100, are required to be designed, specified, fabricated, installed, and tested in accordance with applicable xegulatory requirements,. codes, standards, specifications, and procedures.

~pe The description of the Supply System %HPW Design and Constructon QA Program which follows is of the pxogram as it currently exi'sts. This program'evolved from the original

'quality program which fixst appeared in Appendix D.O of the PSAR. The changes involved in this evolution process include:

NRC requested changes; updates in organization respon-sibilities and authorities; and the incorporation of new requirements.

17.1.1.1 Organization The Supply System Managing Director is responsible to the Board of Directors for the overall management of Supply System activities, including the establishment and implementation'f policies. The Hanaging Di'rector resolves issues involving quality brought to his attention because of failure to reach resolution at lower levels of management. Overall Supply System organization is shown on Figure 17.1-1.

Assurance Program.

p y ~O The Quality Assurance Director is responsible and accountable to the Managing Director to develop, administer, and assess pl '

Included in this responsibility are auditing functions performed on the Supply System WNP-2 quality affecting activities; audits, suxveillance or surveys of suppliers of material, equipment, or services for the WNP-2 Project. The Quality Assurance Director has stop work authoritv. He provides for the review of the status and ac.'e-quacy of the WNP-2 QA Program on an annual basis.

he D'ector of Vuclear Safety is responsible and accountable to the Managing Director to develop and administer Licensing, Operational Nuclear Safety, and Design and Nuclear Safety Assessment activities in support of the Project.

The WNP-2 Program Director, as "hown on the WNP-2 Project Organizational Chart, Figure 17.1-2, has overall respon-sibility WNP-2 and authority for all 'HP-2 Project activities. He resolves issues involving quality brought to his atten-1 7 ~ 1 2

NNP-2 AMENDMENT NO. 17 July 1981 tification and solution of startup problems requiring Enginering and/or Construction resolution.

d.. Serving as a member of the Plant Operations Committee (POC) for all matters related to the Plant Test Program.

'e. Implementing a safe, efficient, and adequate test program in accordance with the requirements of the Test and Startup Program Manual.

f. Preparing and approving Test and Startup instructions.

Startup activities are conducted in accordance with the Opera-tional Quality Assurance Program, topical report WPPSS-QA-004, as referenced in Chapter 17.2..

S stems Turnover The Deputy Project Manager for Systems Turnover is accountable to the Project Manager and is respon-sible for:

a ~ Managing special activities to expedite comple-tion of the WNP-2 Project.

b. Providing support to expedite resolution of outstanding concerns/problems.

C ~ Performing reverif ication/review of prior work, as required.

d. Performing evaluations to assure the adequacy of management systems used to control continuing work.

Qualit Ass urance The Wi7P-2 Project Quality Assurance Manager is accountable to the Program Director and is respon-s'ble for:

Administration of the Quality Assurance Department to deve'.ip and verify site implemen-tation of the %RP 2M~~W Quality Assurance Program.

b. Interfacing with E;."ineering to determine whether a nonconforming condition, existing on 'any safety-related act'ity,'s reportable under the requirements of 10"".R50.55(e) or 10CPR21.

17.1 5

WN,P-2 Q. 421.003 Describe in more detail the QA responsibilities of each of the organization'aL el'ements identified in Figure 17.1.1-1 down to an'd including the MNP-2 Program Director Level.

Response

Figure 17.1.1-1 has been changed to Figure 17.1-1.

Descriptions of the responsibi lities of the organizationaL elements identified in Figure 17.1-1 have been expanded in 17.1.1.1i including Deputy Nanaging Directors'echnical Directorr and Contracts and Naterials Nanagement Director-*

• Draft FSAR page change attached.

k k

NNP-2 muNDXmrr NO. '17 July 1981 As the li'cense applicant, the Supply System "is responsible for the plant. Therefore, the Supply System HHP-2. QA. Program and i "s implementation has been structured to assure that design, .

procurement, and construction activities are accomplished in accordance with sound engineerigg principles. and practices.

Systems, components, and structures that are safety-related, in the context of 10CFR20, 10CFR50, and 10CPR100,'are required .

to be designed, specif ied, fabricated, instaLX ed, and tes ted in accordance with applicable regulatory requirements, codesr standards, specif ications, and procedures.

The desc iption of the Supply System WilP-2 Design and,

~

Constructon QA Program which follows is of the program as currently exists. This program. evolved from the orig.inal it quality program which first appeared in Appendix D.O of the PSAR. The changes involved in this evolution process include:

HRC requested changes; updates'in organization respon-sibilities and authorities; and the Incorporation oE new'equirements 17.1.'l.1 Organization The Supply System Aanaging, Director 'is responsible to'he..

Board of Directors for the overall management of Supply System activities, including., the establishment'nd implementation of.

poLicies. The managing Director resolves issues involv'ing quality'brought to:his attention because oZ fai3,ure to reach resolution at lower levels. of management. Overall Supply stem organization is shown on -Figure'17 1-1.

~ jsuA

~ ~ ~

The Qual'ity. Assurance Director. is responsible and accountable

~

to the Hanaging Director to develop, administer, and assess the'mplementation of the Supply System Corporate Qual'ity,

, Assurance Program. 'ncluded in this responsibility" are auditing functions performed on the Supply-System RG?-2 quality affecting activities; audits,; suiveillance or surveys of suppliers of material, equipment, or services for the-. HNP-2 Project. The Quality Assurance Director has stop work authority. Ee provides for the review of the status'- and ade-quacy of the NNP-2 QA Program on an annual basis.

The Director of Nuclear Safety i;s responsible and accountable to the Managing Di ector "o develop,and. administer'icensing, Operational nuclear Safety, and Design and-Nuclear.

Assessment activities in support of the Project.

Safetyi The NiP-2 P ogram Director, as shown on the QiP-2 Project Organizational Chart, Figure 17. l-2, has overall respon-sibil'ty and authority or. all v".:P-2 Project activities. Ke resolves ~rPilP-2 'ssues involving quality brought. to his atten-; 'I

,I P

• A I

7. 1-2

g,m The Deputy Managing Director is responsible and accountable to the Managing

.Director for: 1. coordinating and integrating the activities of Supply J

System organizations; 2. supporting and advising the Managing Director in b

his functions of leader'ship and evaluation; and 3. acting for. the Managing Director as and when required.

p ~

The Technical Director is responsible and accountable te the Managing, Director for technical suppor t of Supply'ystem activities. from~ a centralized" organization'unctions which are encompassed by this organization'include corporate engineering, nuclear fuel management, environmental. programs',. corporate.

performance and project support.

. Qv,W +C, The Director, Contracts and Materials Management is responsible and accountable to the Executive Oir ctor for the procurement and control of materials, equipment and services of the Supply System. This in'eludes the Hea jquar".ers and Project Business 'crganizations which provide support to the C

Program Director's for procurement, contract management, contract administration,:

including commercial claims analysis and negotiation, business management systems and contract systems> and the; Fuel; Contracts 'eporting/measurement organization which p rovides support to the Fuel Supply Department for. nuclear fuel piocurement and administration. Support is also provided to-the'program Director for control of materials, equipment and.; Cervices. through. the,"'

4 Materials Management organization.

4 MANAGING DIRECTOR DEPUTY MANAGING, DIRECTOR NUCEHAR SAFETY INTERNAL AUDIT-DIRECTOR ING MANAGER QUALITY ASSURANCE DIRECTOR

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~KCUYlVt=

'ASSISTANT KCRkNCQR gNP 1 4.PROGRAM WNP-2 PROGRAM gNP 3 5 PROGRAM 'POWER DIRECTOR DIRECTOR DIRECTOR GENERATION DIRECTOR TECHNOLOGY PUBLIC AFFAIRS ADMINISTRATION CONTRACTS &

DIRECTOR & INFORMATION DIRECTOR .MATERIAES MANAGE TREASURER DIRECTOR MENT DIRECTOR 1

I g

WNP,-2 Q. 421.004 Because he "repo rts to the Program Directori it appears that the Pro-ject Qua lity. Assurance Nanager is not .sufficiently free f'rom the pressu res of cost and schedules to "effectively imple,-

ment 'his respon sibilities.

~ Describe how this situation, wiLL not exist and a Lso his interface role with the Quality Assurance Director.

Response: /

The Supply System re'organizat'ion of 1981 clearly def ined and, established the Program Director 'as- having the authority,and

-responsibility for aLL aspects of the project.

The Program Director is responsible and accountable to the Nanaging Director for the safer successfuL completionr start-up and initiaL power generation of WNP-2'ithin approved schedules and, budgets. The. WNP-2 Program Director'irects overaLL 'engineeringr program managements constructionr operations and quaLity assurance.

The Project. QuaLity Assurance Nanager reports to the Program Director at the project and, is provided independence from the Supp'Ly System organizations responsible. for engineeringi procurement and constr.uctionr and is free from the re'spon- '.

sibiLity of cost:and scheduLing during procurementi design and constructi.on and startup.

The Project Quality -Assurance Nanager. has the freedom and authority to: identify quality problemsr initiater. recommend or provide corrective actionsi verify the implementation of the corrective action and control further processingi delivery or installation of a nonconforming item~ or a deficiency or'nsatisfactory condit'ion untiL proper dis-position has 'been mades including stopping work for quality reasons.

The Project Quality Assurance Nanager shall be responsible for:

a) verification of the implemenlation of the Quality Assurance Program Description and QA NanuaLs; b) Stop Work Authority; c) identification and reporting of nonconformances; d) verification by audits and s>>rveiLLances that the Contractor's and other project organizations are impLementing applicable quality requirements;

'Np "2 I

e) assuring that adequate staffing is obtained to implement ifieactions at the project; QA f)

P

'the assignment of adequately,trained and quaL i f i ed/ce

'personneL, to perform qual'ity verif ication activities; rt-g) overview of the CN approval of Contractor-'s procedures and inst ruct ions; h), reporting to the Program Director significant conditions adverse to'quality; i) report.ing alL QA problems and trends to the Director of Quality Assurance for use in developing standards for QA Management Systems to'recLude repetition of QA problems.

Since .the Project Quality Assu rance Manager reports to the Program Directori the highest possible Level at=.the projects

'he has the best possible acces s'o the management dir'ecting /

actions 'on the project.

The. Quality Assurance Director reports to the'anaging Director and is respons'ible for the ove,rail develo'p'ments implementations and assessment of the SuppLy System QA Programs. Adequacy of impLementation of- these programs at the projects is-the responsibility of the 'Project Quality Assurance Manager. The Project Quality Assurance Manage maintains lines of commun.i-cation'ith the 'Quality Assurance. Director concerning quality.

matters of mutuaL concern.

WNP-2 Q. 421.005 Describe the QA responsibilities'f WPPSS Engineering (Ref.

Figure 17.1.1-3) with regards to Burns 8 Roe'Eng.ineeringr e.g.r 'perform design verificati,on?

Response

The Archtect/Engineer is responsible fo'" design of safety-related systems and components and retains res'ponsibi lity for design controls including design verification. WNP-2 Supply System Eng'ineering;conducts a .continuing management overview- of th,e A/E w.ith primary. emphasis on identification and resolution of problems.

WNP-2 Q. 4'21 . 006 Cl-arify if the stop work authority of=the QA Director,(Ref.

p.'.3)r the Pr'oject QA"Nanager (Ref.'. 12)r and QA personnel (Ref. p. 15) is'elineated in writing."

Response

Stop work autho rities are specified and prescribed in writing.

The QA Director 's 'and the Project QA Nanagers'tep work authority is de lineated in the Design and Construction QA Programs QAR 2- 1. The stop work authority of the Project QA Nanager and QAi and ot-her Supply System project personneL is further delinea ted in MNP-2 Project Instructions.

II l4NP-?

Q. 421'. 007 Describe the qualifications for the positions of QA Director and Project QA Manager.

Response

For the QA Directorr qualifications include a BS degree in engineeringr or a related fieldr and ten years broad experi-ence in designi procure'ments construction and operations in the nuclear industry. Directly"related experience may be substituted for academic requirements where the candidate's record of performance clearly demonstrates that the candidate is able to'taff the position without question. Requirements include knowledge of generaLLy accepted policies and pro-cedures as they relate to Quality Assurance Programs; knowledge of <he NRC Quality Assurance criteria; knowledge of .signif i-cance of Licensing commitments such as those documented on the FSAR and PSAR; knowledge of relevant regulat ions and rulings developed by Federal and State agencies; knowledge and ability in the areas of planningr organizationi measur e-mentr decision making; must be capable of broad overall performance under multiple project condit ions.

Ninimum qualif ications for the Project QA Manager include a BS degree in engineeringr or a related fields and ten years experience in nuclear quality assurance or technicaLLy" related activities. Directly-related experience may be substituted for academic requirements where the candidate's record of performance clear Ly demonstrates 'that the candidate is able to staff the position without question. Requirements include knowled'ge of generaLLy accepted policies and procedures as they relate to Quality Assurance programs, knowledge of the NRC Quality Assurance criteria; knowledge of generic PSAR and FSAR requirements; knowledge of relevant regulations and rulings developed by Federal and State agencies. Nust have demonstrated ability to effectively manage a team of multi" discipline QA personneL and accompLish work" within established plansr budgets and schedules.

MNP-2 Q.'21.008 Give a brief summary of MPPSS'or'porate'QA policies.

Response

Supply System Quality, Assurance is re sponsible for establishing Quality Assurance,policyi goalsr objectives, through the and administration, of the Supply System QA Program.

and'evelopment This'program is defined in the Supply System QA Program Nanual developed by, the Nanageri Quality Eng ineeringr and reviewed and approved by the Directori Quality Assurance and endorsed by the Nanaging Director.

Supply'ystem QA personnel have the authority and respo'nsibility to perform any'ctions necessaryi including Stop Work Authorityi to accomplish their mandate as delineated in the Quality Assurance. Nanual. This responsibiLity and authority is -stated in a Nanagement Statement signed by th'e Supply System Nanaging Director. The. Nanagem'ent Statement appears organization in each QuaLity Assurance Nanual. In matters of confLict regarding Qaulity Assurance 'poLic ies or, the Quality Assurance '.s authority to enforce them at the -working Leveli .the Director of Quality Assurance has direct access to all Levels of upper

..management including the Nanaging. Director for satisfactory resolut i on. I'

t~

WNP-2 Q. 421.009 Describe the provisions which assure that procedures required to implement the QA program are consistent with QA program commitments and corporate policies (should .be established at the Managing Director Level) and are'roperly-docum'entedr controlledi a'nd'ade m'an'da'tory through a policy statement or equivalent document signed by a responsible'ff icial.

Response

The Supply System Design and Construction QA Program Manual.

delineates the methods by which th'e Supply System complies with the criteria of 10CFR50i Appendix,B. implementation of the Supply System QA Prog'ram assures controL of the activities affec.ting quality.

The Supply System Design and Construction QA Program requires Burns and Roe and Bechtel to have based the development of their QA Programs and .the procedures'for implementations on-"l the requirements delineated in 10CFR50i Appendix B.

h Contractors and vendorsr including Burns and Roer Bechtel and GEs are required to have written instructions'roceduresr' policies and/or .drawings which, govern their quality"related c t i v i t i e s a n d w h i c h i n c u d e a p p ro p r i a t e qu a n t i t a.t i v e a n d L

qualitative acceptance/rejection criteria. Xn additions contractors and vendors are required to impose similar documentat ion requirements on their subcontractors.

For additional discussion see response to Question 421.008-

MkJP-2 Q. 421.010 On p. 11't is noted that "startup activities wiLL be conducted in accordance with the Operational QA Program ... " CLarify if the preoperational test program wiLL be covered by the design and construction or the operational QA program.

Response

PreoperationaL and Startup Tests are covered by the Operational QA Program. This is described in the Operational QA Program Descriptioni Section 11 on WPPSS-QA-004m Test Control.

Rev Sr effective Nay 11'981'n

WNP"2 Q. 421 .011 Describe 'the criteria'or determining the number of individuals in the specific QA organization .elements.

Response

The number of individuals in any organization is primariLy a function, of the organization's scope of work and manage.

ment judgement as to the number of'ersonneL required to accomplish the work. The WNP-2 QA organization is present ly budgeted for 29 QA personnel.

MNP-2 Q. 421.012 Provide a commitment that the deveLopmenti controls and use of computer code programs wiLL be conducted in accordance with the QA program.

Response

The SuppLy System has added such a commitment to 17.1.1.3.*

• Draft FSAR page change attached

WNP-2 AMENDMENT NO. 17 July 1981 The WNP-2 Quality Assurance Program is audited on a regular basis by the Home Office Supply System Audit Section.

Contractors'ho perform safety-related work include the Architect/Engineer; NSSS Supplier, and Construction Manager.

These contractors are required to establsh and implement QA Programs consistent with the applicable requirements of 10CFR Part 50, Appendix B. These programs are reviewed 'for adequacy by'NP-2 Project personnel. The Architect/Engineer, NSSS Supplier, and Construction Management Contractor quality-related functions are controlled in accordance with the programs described in 17.1.2, 17.1.3 and 17.'1.4, respectively.

17.1.1.3 Design Control Burns and Roe, as Architect/Engineer, is responsible for spec-ifying the overall design of the project, except that General Electric is responsible for design of the NSSS System. 'esign by .other Project Organizations (contractors) is performed in accordance with an approved QA Program. The details of the Burns and Roe and GE WNP-2 QA Programs are described in 17.1.2 and 17.1.3 respectively.

Design control is performed by project organizations in accor-dance with approved procedures and/or instructions.

Design input, such as design bases, performance requirements, regulatory requirements, appropriate quality standards, and industry codes and standards are properly identified, docu-mented, and translated into design documents, such as drawings and specifications.

Procedures describe the controls established for the review, approval, release, distribution, and revision of design docu-ments involving design interfaces.

Changes in design, including field changes, and the reason for changes, are documented, controlled, and reviewed in accor-dance with measures commensurate with" those applied to the original activity.

p>'~ '7.1.1.4 I ~ ~ Procurement Document Control Procurement of material, equipment, and services for the Project is accomplished through procurement specifications',

contracts, or purchase orders which are prepared,'eviewed, and approved by cognizant persor.nel. Procedures require that procurement documents incorporaLe the applicable quality assurance, regulatory code, and design requirements.' The pro-curement documents require that bidders submit a Quality

17. 1-8

Insert to 17.1-8:

Computer codes, are developedr controLLedi and used in accordance wi th qual it y program requi rements.

WNP-2 Q. 421 . 01'3 Oescribe the provisions for not i fying the NRC for review and acceptance of changes (1) in the accepted QA program description as presented or refe renced in the SAR or SSAR prior to implementations and (2) in organizational elements within 30 days after announcemen t. (Note editorial changes or personneL rassignment s of a non"substantive nature do not re'quire NRC notifi cation.)

Response:'he Supply System .as a matter of poLicy has submitted substantive changes to the .QA Program and organizational elements within the Limitations as noted in the question.

WNP-2 Q. 421 .014 On page 14 modi f y the second paragra'ph to provide an addi t iona l commitment to "comply with 10 CFR 50.55a and the regulatory position of the regulatory guides specified in Appendix C.3 of the FSAR." In additions modify Appendix C.3 to address the foLlowing" regulatory guides or describe acceptable aLter-.

natives: 1.28"Rev. 2; 1.29-Rev. 3; 1.30; 1.39-Rev. 2; 1.74; 1.116; 1.123-Rev. 1;. 1.144-Rev. 1; and 1.146.

Response

The Supply System has referenced 10CFR Part 50's well as oth'er pertinent parts of Title 10'n the second paragraph

,of 17.1.1. This reference includes acknowledgement that regulatory requirementsi codes and standards are applicabLe to 'he design and construction of the plant.

The Sup'ply System has addressed Regulatory Guides 1 30' 74/

and 1.116 in Appendix C.3. Regulato.ry Guides 1.144"Rev. 1 and 1.146 are currently being evaluated. We wilL add state-ments of conformance on these two guides to Appendix C.3 on or befor'e September 1i 1981'nd wiLL incorporate into the next amendment to the FSAR.

The remaining regulatory guide r evisions Listed in the question have been evaluated by the Supply System. In these instancesr r'e g u l a t o r y g u i d e conformance s t a t e m e n't s on the revision LeveLs specified in Appendix C.3 are considered to provide for adequate quality per our project commitments.

WNP-2 Q. 421.015 Identify existing or proposed QA,procedures to reflect that each criterion of'10CFR50i Apperidix B wi ll be met by documented procedures.

Response

The Design and Construction QA Programs in QAR 2-1r *provides a matrix of procedures vs. criteria, This matrix has been added to 17.1.1.2.*

• Draft FSAR page changes attached.

WNP-2 AMENDMENT NO. 17 July 1981 Appendix B to, 10CFR Part 50, "Quality Assurance Criteria for Nuclear Power Pl'ant's and Fuel Reprocessing Plants", and appli-cable regulatory guides as specified in Appendix C.3 of the FSAR.

The Supply System's design and construction activities at WNP-2 are performed in accordance with the policies established by the WPPSS QA Pxogram Manual for Design and Construction. +~

The WNP-2 Project Management Instructions (PMI) Manual delin-eates the responsibilities of and -interfaces between project organizations. Each project organization" is responsible for developing and using implementing procedures/instructions for their assigned functions. =

Quality Assurance Instructions, Pxoject Procurement Manuals,

, and other procedures. or instructions pertinent. to specific departmental functions describe the measures used to implement the provisions of the programs.

The Supply, System Quality Assurance Manager assigned to the WNP-2 Pxoject is responsible for establishing and admin-istering the WNP-2 Quality Assurance policies, goals, and objectives of the Quality Assurance Program and verifying ade-quate implementation.

The WNP-2 Quality Assurance personnel. have the authority and responsibility to perform the necessary actions, including provisions for stop work authority, to accomplish their assignments.

To assure that WNP-2'roject personnel who perform quality-related activities are cognizant of the quality requirements, they are provided training and indoctrination as prescribed by the roject Training Program. The initial indoctrination includes discussions as to the purpose= of applicable codes and standards and familiarization with Appendix B, 10 CFR Parts 50, 50.55(e), and 10CFR Part 21. The training phase includes ins"ructions on the Project QA policies and instructions on specific quality activities directly related to individual job f'c"..'ons. Personnel whose activities require specific quali-fications such as nondestructive testing, audit, inspection, and testing are suitably evaluated, trained as appropriate/

and certified.

Training sessions are an ongoinc activity and are appropriately documented. Nond structive test, audit,,test, and inspection personnel qualifi'ation records are maintained..

17. 1-7

A matrix of "the Supply System QA Program procedures and the corresponding criteria of 10CFR50i'ppendix -Br appears in the table below foLLowed by description of the scope covered by these procedures.

10CFR50.. A endix 8 Criteria Su L S stem QAP.

Organization QAR-1 II Quality Assurance Program QAR-2 Design Control QAR-3 IV . Procurement Document Control QAR-4 Inst ruct ionsr Procedures and Drawings QAR-5 VI Document Control QAR-6 VII Control of, Purchased Naterialsr QAR-7 Equipment and Services E.

VIII Identification and Control of Naterialr QAR-8 Parts and Components IX ControL of Special Processes QAR-9 X Inspect ion QAR-1 0 XI Test Control QAR-11 XII Control of Neasuring and Test Equipment QAR-12 XIII Handl ingi Storage and Shipping QAR-13 XIV Znspectioni Test and Operating Status QAR-14 XV Nonconforming Naterialsr Parts QAR-15 or Components XVI Correct ive Act ion QAR-16 XVII Quality Assurance Records QAR-17 XVIII Audi,ts QAR-18

a) .Or an i zat i one QAR;1 t Establishes an organizational structure that wiLL direct

.the "resources of the Supply System and its engineeri designr procuress 'abricater contractors'o construct and test the Supply, System Nuclear manufacturers'nstaLLr Projects to.maximize safetyi reliability and 'efficiency.

b) P ro r am'AR-2 Defines the Quality Assurance Program established by the Supply System for design and construction. Included in this program is a system for classifying structuresr .

systemsr componentsi design characteristics and procure" ment documents to determine the Quality Assurance associated with each item.

activi-'ies c) . Desi n Controls QAR-3 Establishes a system of independent reviews to assure applicable quality regulator'yr code and design basis requirements are properly translated into design and procurement documents for each structurer system and component. The documented review provides a check for design adequacyr inspectabi lity'nd compatibility with intended usage.

d) Procurement Documen't Control~ QAR"4 Establishes a system to assure that procurement documents and changes thereto-incorporate the techni cal and qua l it y, assurance requirements necessary to assure the quality and integrity of procured materiaLi equi pment and services.

e) Instruct i pnsm Procedures and. D'raw in si QAR-5 Fstablishes, system defining the requirements and respon" sibilities controlling the preparations reviews approval and release of inst ruct ionsr procedures and drawings which implement quality requirements.=-,

f) Document Control< QAR-6 EstabLishes a system t'o controL the issuance of documentsi including changes thereto'hich prescr ibe activities affecting quality.

WNP-2

'I g) Control of 'Purchased Materi ali E ui ment and Services'i AAR-Establishes a system to assure materials equipment and services are'rocured in accordance with the requirements specified in the procurement documents.

h) Identification and ControL of Materialsr Parts and Com onentsr QAR-8 Establishes a system for the identification and controL of materials parts~ componentsi equipment and partiaLly-completed assemblies to assure that items incorporated into the plant are of proper configuration ands when necessaryi traceable to all supporting quality assurance documentation.

i) Control of

~ S ecial Processesr QAR-9 Establishes a system for the control of special processes.

j) Xn ecti ni Q R-10 EstabLishes a system which assures the progr am require-ments for inspection are delineated in the specifications'nd contracts 'and assures that inspection and surveillance activities are performed in accordance with predetermined requirements delineated in written instructions in a planned and systematic manner.

k) Test Cont roti QAR-11 Establishes a system to assure that plant testing activities are performed in accordance with predetermined requirementsr approved and delineated in written instructions.

L) Control of Neasurin and Test E ui ments QAR-12 Establishes a system for the controls calibration and adjustment of tools'augesi instruments and other inspections measuringi testi;.g and maintenance devices at specified periods to assu.e the useage of proper types'ange and accuracy necessary to verify conformance to established requirements.

W NP .2 m) Handlin r Stora e and Shi in r QAR-13 Establishes system to,control the-handlingi storager shippingr cleaning and preservation of materia,lr partsr components and equipment in accordance with written and approved proceduresr 'instructions and recommenda-tionsi to assure that the desi=gned integrity an'd functionality of the item are maintained.

n) Ins ectionr, Test and 0 eratin Status'AR-14 Establishes a system to indicate .the insp'ectioni test and operating stat.us for alL structures~ systems or components to preclude the inadvertent bypassing of their inspection and test requirement's and to prevent their inadvertent operation.

o) . Nonconformin Naterialr Parts or Componentsr QAR-15 EstabLishes a system to assu're that nonconformances are identifiedi documentedi se'gregat,ed or'therwise controlledr prevented from inadvertent use or instaLLation and of actions taken is transmitted to .the that'otification affected parties.

p) Correct ive. Act ioni QAR-16 Establishes 'a system to assure that significant conditions adverse to quality are identifiedr the cause brought to the attention of upper managementr determined'ocumentedi corrected as soon as possible and that measures are taken to preclude repetition.

q) Qualit Assurance Recordsr QAP.-17 Establishes a system for the control-and maintenance of all, records sufficient and necessary to provide objective evidence of the act ivit ies af f ecting quality.

r) Auditsr QAR 18 I Establishes a system of audits to be performed in a planned and systematic manner to verify compliance and effective-ness of the Supply System Quality Assurance Program.

WNP-2 Q. 421.016 h

Provide a description of how management (above or outside the QA organization) regularly assesses the scopes statusr adequacy and compliance of the QA program to 10CFR50i Appendix B. These measures should include:

a. Frequent contact with program status through reportsr meetingsi and/or audits.

b. Performance of an annual assessment preplanned and documented. Corrective action is identified and tracked.

Response

a ~ General staff meetings are held weekly by the WNP-2 Program Director. The .Project QA Nanager attends and quality-related topics are an agenda item. In additions the project prepares a WNP-2 Program Director's Nonthly Program Review Report which addresses quality-related topics. The Nanaging Directors'n turni is briefed from this reportr as requiredr on the status of the project.

N A formaL preplanned and documented management assess-ment of the QA Program at WNP-2 is conducted annuaL Ly.

The next one is planned f'r the Last quarter of 1981.

This assessment is described in the Corporate Design and Construct ion QA Programs QAR "18'nd inc Ludes identification and tracking of corrective action.

WNP-2 Q. 421.017-Provide a summary de'scription on how responsibiLities and controL of'uality-related activities are transferred from the principaL contractors to WPPSS during the phaseout of design and 'construction and during preoperational testing and plant turnover.

Response

Responsibility for and control of quality-related activities follows custody of items or systems.

Prepurchase'ontracts are complete and closed when the hard-ware and related software are delivered and accepted. The installing contractor is given control and responsibility for.prepurchase hardware on de livery and retains controL untiL turnover to the Owner (Startup) .

Site contracts are complete and closed (partially or com-

.pleteLy) at th e time of system turnover. System turnover transfers comp Lete custody and. responsibility .for plant systems to the Supply System Test and Startup group.

Turnover, const itutes Supply System acceptance of the system for testing.

At the time of turnoverr open items of work or documentation are identified on a consolidated List which establishes rema ining work to be tracked through project completion.

WNP-2 Q. 42'1 .018 Describe the provisions which assure that the scope of the design control program includes such activities as field design engineering; radiationi and the SAR accident analyses; physics'eismic'tressthermal'ydraulici associated computer programs compatibility of materials; accessibility for inservice inspectionr maintenancer and repair; and quaLity assurance.

Response

The scope of the design controL program is detailed in Chapter III'aragraph 2.2 of the Quality Assurance Nanual BRROE-CON4-1-NP-2Ai and paragraph 3.1 of the approved GE QA Program Descriptioni NEDO-11209"04Ai which have been approved by the NRC. The design activities include field design engineeringr seismicr physicsi radiationr and accident analyses; compatibility stress'hermal'ydraulicsr of materials; use of computer codes; access for inservice inspectionr repair and maintenance; quality standards; and field design activities.

WNP-2

'Q. 421 . 019 Describe WPPSS 'rganizat ional responsibilities fo'r review-ingr approvin'gr and veri fying design documents= such as syste'm descriptionsr design input and criteri'ar design drawingsr design analysesr computer programsr specificationsr and procedures.

Response

MNP-2 Suppl'y System Engineering provides an overview of documents prepared by the A/E and NSSSr such as design the'esign spec'ificationsi drawingsi and design criteriar to ensure::that

~

they conform.to Supply System needs. This overview includesr on a select-ive basis'r design changes. This, overview is performed to help assure that the design documents, conform to federaL and state regulationsr industry codes an'd standardsr and Supply System requirements.

The Supply System may review specifications and drawings and approve them for procurement and may approve design

-approaches..

0, WNP-2 Q. 421.020 Describe WPPSS'rganizational responsibilities for (1) procurement planning; (2) the prepar,ationr reviewi approvalr

,and control of procurement'ocuments'; (3) supplier selection; (4) bid evaLuations,', and (5). review and concurrence of supplier QA programs prior to initiation of ac'tivities affected by the program. Describe the involvement of the QA organization in implementing these responsibilities.

Response

The Supply System procurement process is accomplished in accord -with approved procedures. Simple procurements are accompLished by purchase order from approved suppliers.

Najor procurements are accomplished in accord with the following:

a. Procurement planning is the responsibi Lity of the SuppLy System. The Supply Systems with the assistance of the A/Er Burns and Roe'nd the CNr Bechteli deter" mines the scope and s"chedule for procurements. The Supply, System also determines and specifies the associated .quality-related requirements and actions necessary to meet our quality program commitm'ents and assure an adequate procurement.

b. The preparationr reviews approvalr and controL of procurement documents is primarily.the responsibility of the Supply System. The A/E normaLLy supplies the technical requirements to the Supply Systems including recommendations for related commerciaL terms. Supply System Engineering reviews and approves the require" ments. The procurement document assembled by the Supply'System is also reviewed and approved by Supply System QA. The Supply System procurement organization controls and administers the procurementi including changesi in accordance with approved procedures. In a few isolated instancesr the Supply System may assign contract administration to the A/E or CN.

c. Supplier selection generally originates. with recommenda-tions by the A/E. Final selection of a supplier is accomplished by the Supply System through the competitive bidding process established b; the statutory procurement

wNp-2 requirem'ents of the State of'ashington. Thi s addi ti on to pr iced the responsiveness considers'n and respon'-

sibility characteristics of the bidding suppliers.

d. Bid evaluations are accomplishedby the Supply System through a joint organizational review process which includes the A/E and SuppLy System QAr Engineeringr Construction Nanagementr, and Procurement.

e. Review of arid concurrence with,.supplier QA programs is accomplished by the A/E and CN organizations prior to initiation of work a"fected by the program. In some instancesi this review may be accomplished by the Supply System. The'/E and CN QA programs are reviewed and approved by the Supply, System.

In the event o'f a concern regarding the supplier's qualificationsr including his QA programs a pre-contract award survey is conducted at the supplier 's facility In additionr QA surveiLLance/audits of the

~

suppliers are specifiedi as requiredi and accompLished during the procurement to,assure compliance with the QA program requirements and technical requirements.

WNP-2 Provide a commitment that the types of controlled documents include: documents reLated to computer codes; QA and QC manuals'; topical .reoorts; SAR; and nonconformance, reports.

Response

Quality Assurance and Quality Contr'ol manual.si topicaL reports'ocuments related to computer codesr reports'onconformance and the WNP-2 Safety Analysis Report are controLled doc'umeqts.

lr(NP .2 Q. 421.022 Describe the. provisions which assur,e that the QA organizationr-or an individuaL other than the person who generated the document but qualified in quality assurances reviews and concurs with'ontrolled documents. with'egards to" QA-,related

.aspects.

Response

Qualified and trained engineering personnel other than-the person who -,generated the document accomplish quality"related activities such as design review and checking in accord with approved procedures. Audits and surveillances are conducted by QA personneL of drawing,preparationr reviewr and approval.activities.

Specificationsi design changes'nd'roject procedures ar.e reviewed .and concurred" with by QA personnel in accord with approved procedures.

WNP-2 Q. 421.023 Provide a commitment that procurement of spare or replace-ment parts for structuresi systemsi and components important to s'afety- is subject to present QA program controlsi to code

.and standardsi and to technical requirements. equaL to or better than .the origina l technical requirements.

Response

The Supply System procures spares or replacements to originaL or improved technicaL project requirementsi including codesr standards and current. applicable QA program controls.

Replacement or new parts added into existing procurements are in accord with the codesr standards and QA program as contained in the existing procurement documents.

The Supply System has added thi s clarification to 17.1.1.4.*

• Draft FSAR page change attached.

iWiP-2 "'AHENDMENT HO. 17 July 1981, Assurance Prog".am or plan describing their policies, proce-dures, and.sys "ems. to be utilized in 'the control of 'quali-'y to-throughout the applicable phases of production, from design f inal shipment, erection, or installation.,

Pxocu ement documents provide requirements for supplie s to submi" or make 'available for review applicable documents such as drawings, 'speci"ications, procedures, instructions, inspec-tion and test records, and quality assurance'records to for review anc/or approval. the'roject Procurement documents require suppliers to provide measures fox retention, control, and maintenance of their Quality Assuxanc records. Procurement documents specify the appropriate records to be delivered to the Project prior to or with delivery Procurement documents require suppliers to provide right of access to their facilities, or'ocedures, and records for inspection and audi" by Pxoject personnel.. Procurement docu-ments issued after January 1978 require the supplier to establish measures for, repor ing 10CPR Part 21 reportable def iciencies and disposition of nonconformances from procure-ment document requirements. Procurement'ocuments requir that the supplier retain the responsibility for monitoring and evaluating their.sub-tier suppliers'erformance to speci ied requirements.

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Changes and revisions to procuremenh documents are subjec" 'to the. same or e uivalent: review/approval requirements as th orig inal docume..t.

17.1.1 ..5 instructions, Procedures and Drawings Activities a" fecti.-.g cuality are described in 'procedures instructions, and drawings and the activities are conductec 'n accordance w'h 1 tnese documents.

P ocedures, '.".struct'ons, and drawings includ'e adecuate q an-titative and qualitative acceptance criteria to asc rtain

-the prese.-ibed activities have been satisfactorily accomplxshed-Procedures, instructions, and drawings are subject to review g) p~ cJ Q~ww$ Q oT ~,

'c to assure t.'".'at applic ble codes. standards, and acceptance/re ection c iteria a-e included.

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WNP-2 Q. 421.024 Clarify that receiving inspection is performed to assure:

a ~ Material> componentsi equipmenti and acceptance records satisfy the inspection instructions prior to instaLLation, or use.

b. Specified inspectioni test and other recordsr (such as cert i f i'cates of conformance attesting that the materials componentsi and equipment conform to specified requirements) are available at the nucL'ear power plant. prior to instalLation or use.

Response

a ~ Receiving inspection of materials componentsi and equip-ment is performed in accordance with written procedures or inspection plans to assure product Conformance with purchase .document requirements.

Install ing contractorsi on their pr ocurementsi are required to identify acceptable items after determining that .all receiving requirements have been accomplished. Items may not be released for installation or use until determined

-to be acceptab'Le or conditionaLly releasedI as described in 17.1*.1.8.

Bechte l perfor'ms receiving inspection of Owner prepurchased

.items in accordance with procedures. Items sKqLL not'e released to-the installing contractor 'un'til determined to be acceptable or condit ional ly released under the require-ments of the quality program.

b. Contractors are, required to make provisions that'all documentation and records required- to substantiate quality of procured material and equipment are available at the site prior to acceptance for u'se or installation.

h Bechtel receiving inspection of Owner prepurchased items includes a review of require" quality documentation prior to release 'of the"-'item'or i.".stal Lat ion or use.

WNP-2 Q. 421.025 Describe the provisions which assure that suppliers'ertifi-cates of conformance are periodicaLly evaluated by auditsr independent inspect ionsi or tests 'to assure they are v'alid.

Response

Verification of the validity of supplier certificates and the effectiveness of the certification system are accomplished's an integr'aL part of supplier con'trol measures. The degree of verification required wiLL depend upon the type of item or service and its safety importance. Neans of verification employed may include source surveiLLancer source auditsi document'eviewsi independent inspections at the time of materiaL receipts user'ests ori selected commoditiesr and tests after 'instaLLation on -selected components and systems.

WNP-2 Q. 421.026 Describe WPPSS'rga'nizationaL responsibilities for qualifi-cation,'.of special processesr equipmentr and personnel.

Response'.

The Supply System performs a procurement document review function and,performs or requires an audit/surveillance function to help'ssure that:

a. Procurement documents require necessary qualification of processesr equipmenti and personneL;

b. The requirements of .the procurement documents ar.e

.adequately implemented.

The A/E, estabLishes procurement document requirements for speciaL processes. Procedures and, records are reviewed and approved by the A/E and CM.

WHP-2 Q. 421.027 Describe the provisions which assure 'that inspection results are documentedr evaluatedi and their- acceptability determined by a responsible individual or group-Response':-

Installing contractors have developed and implemented inspec-tion programs that meet the requirements of ANSI N45.2.0.

These programs have been reviewed and,evaluated by or for the Supply System. Inspection requirements are included in documentation which governs installation activities. Completed document packages are reviewed for acceptability by contractor quality groups or individuals having review responsibilityi as well as by the Construction management organization.

The Supply System Project QA organ izat'ion performs audits/

surveillances or i-'nspection activities to assure compliance with established criteria.

WNP-2

0. ii?1.0?8 Describe the provisions which assure that procedures provide criteria for determining the accuracy. requirements of inspection and test e"quipment and criter,ia for determining when inspections or .tests are required or define how and, when inspections and testing activities are performed.

Response

Inspection and testing activities to be performed are defined in inspection and test procedures or plans. The degree and amount of inspection performed on specific work items is determined from factors including similar inspection experiencer criticality of the operation or part inspected and probability of rejectable conditions. Provisions are made for inspection of processed items and/or indirect control by monitoring of processing methodsr equipment and personnelr as appropriate.

The contract speci f i cat ions general ly inc t.ude speci f ic requirements defining how and when inspections and tests are to be performed. These requirements for testing and inspection are based on the Architect/Engineer "prepared specifications.

Contractors are required to establish measures to assure that inspection and test equipment are of 'the proper ranger typer and accuracy to verify conformance to established requirements.

In generals inspection and test equipment to be used is defined in inspection procedures.

5INP "2 Q. 421.029 Describe the provisions which assure that test procedures (Ref. p. '30) or instructions provide as required for the foL Low-ing:

a 0 Test prerequisites'such as cat ib rated inst rumentat ionr adequate test equipment and inst rumentat ion inc Luding their accuracy requirem entsi completeness of item to be testedr suitable and controLLed environmentaL con-ditionsi and provisions for data collection and storage.

b. Nandatory inspect ion ho Ld points for witness by Ownerr contractors or inspecto r (as required).

Response

InstaLLing contractors are required to prepare test procedures

,.or plans that meet the requirements of ANSI N45.2.0r including provisions for necessary test prerequisites. Test proceduresr as applicablei are reviewed and approved by the Architect/

Engineer and Construction Nanagement organizations.

Test procedures include mandatory inspection hold points where appropriate. The Construction Nanagement Contractor establishes witness and holdpoints for surveillance inspection of the contractor's activities. Provisions are also incLuded in construction contracts for estabLishment of'wner hold points where considered necessary.

WNP-2 Q. 421.030 Describe the provisions which assure that calibration of measuring, and test equipment should be against standards that have an accuracy of at Least four times the required accuracy of the equipment being calibrated ore when this is not possibles have an accuracy that assures the equip-ment being calibrated will'e within required tolerance and that the basis of acceptance is documented and author-ized by responsible management.

Response

The guideline that calibration of measuring and test equip-ment be against standards that have an accuracy at Least four times the required accuracy of the equipment being calibrated was not spec ificaLI.y imposed in contract specifi" cations. Contractors'rocedures are required to specify the b'asis of acceptance incLuding calibration techniques calibration frequency'nd allowable deviations from cali" brat ion standards (tolerances) . These procedures are to the Owners or his designeer for approval.

sub-'itted

WNP-2 Describe the provisions which 'assure that calibration standards have greater accuracy than standards being calibrated.

Response

As noted in the response to Question 421.030 contractors are required to specify allowable deviations for both calibration standards and equipment being calibratedr and submit them for approva l.

.WNP-2 Q. 421 .032 Provide a commitment that documen ation identifies the h

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nonconforming item; describes the nonconformancer the dis-position of the nonconformancer and the inspection require-ments; and. includes signature approvaL of the disposition.

Nonconformances are corrected or resolved prior to the pre-.

operationaL test program on the item.

Response

The Supply System program does provide that documentation identifies the nonconforming items describes the nonconfor-mancei the disposition of the nonconformancei signature approval: of the dispositions and completion of required inspections. This clarification has been added to 17,1.1.15.*-

Any.nonconformances that have not been resoLved at the time of turnover of the item to the Supply System for preoperationaL test ing are identified as exceptions requiring further resolution. The nonconformance is reviewed by the Supply System for potentiaL impact on preoperational testing and is resolved prior to testing if necessary.

• Draft FSAR page changes attached.

NNP-2 AMENDMENT NO. 17=

July 1981

d. That rework or repair. of nonconforming items be subject to the same, or an equal test or inspec-tion as was orig.inal'ly imposed, or an a'poroved alternate, and the inspection, testing, rework and/or repair activities are documented.

e. That nonconformance reports, are reviewed for potential 10CFR50.55(e) and Part 21 reportability.

f. For identification and control of conditional released items.

g. That measures are established in procurement documents to require off-site vendors and suppliers to include their nonconformance reports, which deviate from procurement'docu-ments, as a part of their Quality Assurance records.

h. That site contractors and subcontractors document deviations'rom contract requirements, and dispositioned "use-as-is" or non-'onformances "repair" are submitted to the project for revie~ l" and/or concurrence. Tms'l ~ 8 ln~w Construction Management Contractor Quality Assurance is responsible for the review of these nonconformance'eports to ascertain that they have been dispositioned, approved, and closed out.

Reviews include trend studies, corrective action adequacy, and reporting to appropriate levels of management.

The Architect/Engineer is responsible to provide acceptance of disposition, or when applicable, provides disposition of nonconformances.

17. 1. 1. 16 Corrective Action Measures are established to pro"ide for the prompt iden-tification, evaluation and corx-..ction of conditions adversedef'- "o quality such as nonconformance . failures, malfunctions, ciencies, dev'ations, de=ective mat rial, and equipment.

The Quality Assurance programs "or the project organization, off-site vendors and suppliers, on-site contractors and sub-contractors are required to est blish provisions:

a. That corrective ac'on is implemented in accor-d ance with procedu=es.

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MNP-2 Q. 421.033 Provide a commitment that audits include an objective evaluation of quality-reLated practicesr proceduresr instruct i onset act ivi t i es and i tems:. and review of documents and records to ensure that the QA program is, ef f ective and properly implemented.

R'esponse:

The Supply System does include the above in its audit program and has added this clarification to 17.1.1.18.*

• Draft FSAR page changes attached.

AMENDMENT NO. 17 July 1981 I

d. 'cceptability.

e. Action taken relative to deficiencies noted.

f. Identification wi"h the applicable item or activity.

vendors, and contractors are required to furnish

'uppliers, Quality Assurance. records prior to or on delivery of equ'ip-ment, supplies, structures, or systems, or retain them i=

required by contractual agr ement.

Procedures are establisned and contain provisions for the identification of indsviduals or groups respons'ble for record transmittals, retention, and *maintenance, and provisions for assuring that records are identifiable and retrievable.

'Record storage facilities are constructed, located and secured to prevent destruction by fire, flooding, theft, and deterioration by extremes in temperature and humidity.

17. 1. 1. 18 Audits Measures are established to provide a system for conducting audits to verify compliance with all aspects of the Quality Assur'ance Program and to determine the effectiveness of the ptugtam.. g gg The project organizations arid principal cont ctors have established and implemented an audit. system .'+ he system assures that the necessary audit functions are performed to.

pre-es" ablished w" itten procedures or checklists in a planned and systematic manner, and are conducted by tra'ned and qualified personnel who do not .have direct responsibility in the areas being audited.

The aud't sy'tem provides for external audits to oe perforzec, as appropriate, by the home office, project organization, and princ>"al cortrac-'=rs on thei= suppliers vendors and contractors, a.".d 'nterna'ud'ts "o be performed within each organization; Audits are plannec and scheduled on the basis or the s"atus and sa etv im or"ance of the activities being performed. They are initia"ed ear'y enough and pe =ormed at regular interva's to assu"e tne qua" ity assurance p. >>gran is effectively imple-mented du 'ng des'gn, procurement, manufacture, construction, and installat'on.

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Audits are documented and reviewed with the level of manage-ment responsible for the area aud'ed and, where requ'red, follow-up action 'ncluding re-audit of the deficient areas is performed.

Audit data is evaluated<and the results are reported to man-agement for review and assessment.

The Supply System WNP-2 quality affecting activities are audited on a scneduled basis by the Supply System home office audit group.

1 7. 1 . 2 THE BURNS AViD ROE, INC . QUAZ lTY ASSURANCE PROGRAM 17.1.2.1 Introduction The Burns and Roe, Enc. (B&R) Quality Assurance Program for the Washington Public Power Supply System (WPPSS) Nuclear Project No. 2 (r1NP-2) has evolved during the design and construction of WNP-2 The original B&R Quality Assurance Program (QAP) was described in the Atomic Energy Commission acce'pted= Preliminary Safety Analysis Report (PSAR) for WNP-2, Appendix D.O. This QAP was implemented until February 1978i when NPPSS assumed .responsibility for Construction Management, Site Quality Assu"ance and Vendor Surveillance of selected prepurchased equipment contracts. The B&R Quality Assurance Program was implemen'ted during this'hase of the WNP-2 SAR Deviation Request No. -15 WP. Zn this phase, B&R was respon-sible for the Architect/Engineer scope of the engineering and design of NNP-2 and provided experienced Quality Assurance personnel to carry out the Supply System's assumed respon-sibilities. On June 1, 1981 B&R will implement their Quality Assurance Topical Report, B&ROE-COM4-I -NP-ZA, approved by the Nuclea Regulatory Comm'ss'on, with documented exceptions for the B&R Engineering and Design and procurement activities for NViP-2.

17.1.2.2 he B&R QualitI Assurance Topical Report The Quality Assurance Program for NNP-2. to be implemented by B&R on June 1, 1981 will be based on the B&R Quality Assurance Topical Report with documented exceptions, WNP-2 Final Safety Analysis Report (FSAR) commitments, WPPSS di ction and the B&R "ontrac" ura'esponsibilities for the design and construc--

tion of NNP-2. The B&R responsibilities for the WNP-2 Project are Enginee"ing and Design, and procurement activities for assi~;ned prepurchased equi"ment, c.'ntracts. The exceptions "o the Ouali" r AssuranceTopical'e=" t are ident'ied in the s

17. 1-20

WNP-.2 h

Q. 421.034 Provide a"commitment ,that "all aspects" (Ref...p. 40) cover activities as;sociated with: "'.

Indoctrination 'a'nd training programs.

b. Interface controL between WPPSS and the principal contractors.

c; 'orrec'tive actions calibrationi and<<nonconformance controL syst.ems.

d. SAR and SSAR commitments.

Response

The .Supply System d'oes include" thei above in its audit program and has added t,his clarification to 17.1.1.18.

L See response to Question 421.033 for draft FSAR page changes.

WNP-2 Q. 421.035 CLarify where 'the ".home office audit group" (Ref. p. 41) is Located in WPPSS'rganizat.ion'.

4

Response

The 'home of fice. audi t group" i s part of the Quality Assurance Director's staff. See revised Figure 17.1-1.*

• Draf t FSAR page change attached.

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, Q. 421.036 Describe the QA responsibilities of each of the organizational.

elements noted in Figure 17.1.1-4.

Response

Figure 17.1.1-4 has been changed to Figure 17.1-4r which has been revised to reflect the reporting'elationship of QA personnel in the BSR organizational structure.*

The Project Director has overaLL responsibility for manage-ment and direction of the BRR scope of services to WNP This responsibility includes implementation of BRR's systematic management controls required for activities affecting safety systems and equipment.

Engineering and Design/Draft ing Nanagers are responsible for implementation of mandatory BRR procedural, controls applicable to their sco'pe of safety"reI.ated engineering- and drafting activities.

Richland/Site QA Engineering is responsible for audit and surveiLlance 'of the BSR safety-re l'ated functions performed at the Site and Richland offices and of subcontractors administered from these offices. Woodbury QA Engineering is responsible for audit and surveillance of safety" related functions performed in Woodbury and of contractors and sub" contractors administer ed from Woodbury. Quality Assur ance personnel report independently to BRR Corporate QA for functionaL authority.

'~Draf" FSAR page change attached.

PROJE CT DIRECTOR HER SITE ANAGER HOME OFFICE RICHLAND A MANAGER SITE PROJ. ENGINE- ENGINEERING ENGI ENGINEER ING ERING MANAGER ASST. MANAGER DESIGN DRAFTlNG 4"

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WNP-2 Q. 421 .037 Page 4r Section 17.1.2.2 Define the term "prepurchased equipment contracts" in the second sentence.

Response

"Prepurchased equipment contracts" are Supply System contracts for the procurement of equipment and components which the Supply System provides to the site contractors for insta lla-tion.

WNP Q. 421.038 Provide a commitment that the Burns and Roe QA program "will foLLow the regulatory position of the Regulatory Guides

.identified in Appendix C.3 of the WNP-2 FSAR". (Ref.

Question No. 14)

Response

Burns and Roe< per paragraph 17.1.2.3.2r has committed to specific regulatory guides or aLternate positions identified via Appendix CD 3 of the FSAR.

WNP-2 Q. 421.039 Page 45.i Section 7 - The purchase of spare or replacement parts shall be to..the latest QA program requirements.

I'lodify the present, statement to address this position or describe an acceptab le alternative.

Response

Section 17.1.2.3.4r paragraph 7 has been changed to read:*

"Later procurement of spare or replacement parts shaLL be to the originaL or improved technicaL requirements. Impositions of Quality Assurance .

requirements wiLL be in accordance with t.he Quality Assurance requirements of the existing specification for procurement of components which are added to existing contracts. The Latest. WNP-2 Project Quality "

Programs are imposed on new p r o' u r e m e n t s '.

• Draft FSAR page change attached.

WNP-2 AMENDMENT NO. 1 7 July 1981 h

The appropriate commercial requirements are established by WPPSS and/or B&R and may be incorporated during the initial preparation of the technical specification. WPPSS prepares the potential bidders list.

Para ra h 5 Award is determined by WPPSS using the bid evaluation prepared by B&R.

Para ra h 6 Technical specifications are not normally conformed. When technical specifications are conformed, the changes are reviewed and approved in accordance with the same procedure used for the original technical specification.

h 7 Later procurement of spare or replacement parts shall be to h g p 7 h 7

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Q. k Maw 17.1.2.3..5 Chapter V Instruction's, Procedures and Drawings Para ra h 2.2 Burns and Roe review of Quality Assurance plans required by procurement documents is limited to those prepurchased contracts for which Burns and Roe performs the vendor sur-veillance function.

Para raph '2.5 Burns and Roe verification of the implementation of instruc-tions, procedures and drawing programs is limited to those oreourchased contracts for which B&R performs the vendor sur-veillance function.

17.1.2.3.6 Chapte'r VI Document Control h

The B&R WNP-2 Quality Assurance "rogram, in regard to document concro3., does not govern the fo ~ ".owing:

17.1-23

Insert to'age 17.1-23:

Impositions of Quality As urance requirements will be in accordance with the Qual i ty Assurance requirements of the existing 'specification for procurement of components which are added to existing contracts. The latest WNP-2 Project Quality Programs are imposed on new procurements.

WNP-2 Q. 421 . 040 identify the organizational element that performs receipt inspec t ion o f i em, on "prepurch;ised equipment cont rac ts" t

which are the responsibility of Burns 5 Roe.

Response

Prior to JuLy 1981'eceipt inspection of items on "pre-purchased equipment contracts" was performed by the contractor having the instaLLation responsibility. Since July 1981'eceipt inspection of prepurchased equipment is performed by'he Construction Management contractor.

WNP-2

',Q. 421 .041 Section 17.1 .3 - General Electric's current activities related to WNP-2 sho uld be in accordance with NEDO-11209 04Ai Revision 2r dated Februa ry 1c 1980. In additions. GeneraL Ele'ctric should update their commitment to the folLowing Regulatory':Guides or describe acc eptable. alternatives: 1.28-Rev. 2; 1.58-Rev. 1; 1.144-Rev. 1 ; .and 1.146.

Response

The General Electric t)uclear Energy Business G'oup (NEBG) provides a BWR Quality Assurance (QA) program as .documented in NEDO-11209-04Ai Revision 2r October 1.980. This QA program is structured to comply with the NEBG commitments to the quality-related'eguLatory guides and has been approved by NRC in a Letter. dated September 29'980.

In this Letteri NRC states that shou Ld regulatory criter ia or regulations change such-, that their c oncLusions about the NEBG QA program become invalidatedr they wilL, notify GE. For this reasons the QA program provides for periodic modification and/or updating of NEBG commitments to comply with quality-related regulatory guides relating t o the NEBG scope of supply.

The NEBG commitments t'o comply with regulatory positionsi or NRC approved alternate positions to quality related regulatory guides are then incorporated- into th e BWR, QA program documenta-t ion.

As approved by NRCr the NEBG conmitment to Regulatory Guide 1.28 is to Rev. 0'June 1972) .'egulatory Guide 1.144 has not been committed to by NEBG. The next revision of NEDO"11209-04Ai will include the NEBG commitments to Regulatory Guides 1.58m Rev.

and Regulatory. Guide 1.146; these commitments have been verbaLLy approved ".y NRC.

• Draft FSAR page change(s) attached.

HNP-'2. AMENDMENT NO- 17 July.,19&1'ara ra h 2.5 h

Ho" applicabl to the B&R vHP-2 Quality Assurance Program.

17.1.2.3.16 Chapter VJI Corrective Action Ho'eviations.

17.1. 2. 3. 17 Chapter XVII Quality Assurance Records Ho deviations.

17.1.2;3.18 Ch'ap ter X iJI II Aud i ts h . 0 No t apolicable to BGR NNP-2 Qual i ty Assurance Program.

4 Para ra h 2.11 The audit program on materi'al and equipment suppliers applies only to tnose prepurchased contracts for which B& R performs the vendor surveillance function'7 F 1.3 , GENERAZ EZECTRIC COMPANY QUALITY ASSURANCE PROGRAM The applicable Quality Assurance Program (QAP) and detailed procedures for the NNP-2 nuclear steam, supply system (NSSS) and fuel have evolved during the design and construction pha-ses of the WNP-2 plant. The original General Electric (GE),

program for, wHP-2 was implemented in 1968 and is desc-ibed in the Preliminary Safety Analys's Report (PSAR), Appendix D The orogram at tha" time was in accordance with the Nuclea Energy Division (HED) quality objectives for safety and reliable svstems and components as set forth in the "Blue Book" issued 'August 20., 1968. On October 1, 1969, the "Blu B~ok" ~a's "eplacod ~ith the "Green Book", Revision 0, Qhich incorporated the in ent of the: then "Proposed Atomic Energ"- "

Ccmmisslon (A"C) Qua' ty Assurance (QA') Criteria." The "Green Book" has proceeded 'hrough several revisi lates" revision is HEDO-11209-04A, dated - since ' 1 o .

able The Gc)~4 is a mat ix snowing the entire evolutionary process

~hich the GE program has undergone since August 1968 and iden-tifies relatec HRC and industry standards that were apolied.

The ac ual version in effect at any point in time 'controlled the QA measur s applied to NilP-2 by GE for work when ' was ini"'ated, co..s's" .." with anv nec ssary contractual adjust-men" s to uo'date from the 1970 base date of the contract with t.".'e:iash'g ~on Public Powe Supply System. For example

17. 1-28

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1'ABLE 17.1-1 GEWL'RAL HI.ECTRIC QUAI Il'Y ASSURANCH EVOI.UTIONARY PROCHSS NHD QualitY Intent of Intent of AL'C D;:t>> uf Ob]ective.s Proposed ]OCI"R50 Reg . ASHE QA Relet>>5l

i. fee t ive- Safe & Rejiable AEC QA Appendix D 10Cl"R50 ANSI Guide D&P Reg. Guicle

>sa ss Systems & Cc>mponents Criteria (proposed) Appendix B N45.2 1. 20 Code & ANSI .)tds.

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(NL'DO 11209-01) 12/12/75 Green Book (NL'DO 11209-02) 1 1/76 Creen Book (NL'DO 11209-03A) 3/31/70 Green Book (NLDO 11209-04A)

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'Q. 42'l.042 Section 17.1.4.3 ,BechteL should update their commitment to the foLLowing Regulatory Guides or describe acceptable alternatives: 1. 28-Rev. 2; '1.39-Rev. 2; 1.123-Rev. 1; and 1.144-Rev. 1.

Response

BechteL's reguI.atory Guide positions meet project and Supply System commitments in Appendix'.3. Bechtel wiLl address Regulatory Guide 1.144-Rev. 1 in conjunction with the Supply System.

See response to Question 421.014.

421 Section 17.1.2.2 of the standard f'ormat (Regulatory Guide i

1.70) requires the ident if cation of safety-reL'ated structuresr systemsr and components. controlled by, the quaLity assurance program. You are requested to supplement and clarify the WPPSS-2 List in Table 3.2-1 of the FSAR in accordance with the'foLLowing'.

a. The following items do not appear in Table 3.2-1 of the FSAR. Add the appropriate items to Table 3.2-1 and prov. ide a commitment that the remaining items are subject to the pertinent requirements of the FSAR operationaL quality assurance'rogram or justify not doing so.

Biological shielding wi thin containment vessels reactor bui Ldingi and cont.rol bui Lding.

2. Nissile barriers within containment vesselsr reactor buildings control buildings diesel-generator build-ingr and standby service water pump houses.

3. Spent fuel pool and liner.

4. Equipment and drain f Loor piping and containment isolat ion valves.

5. Quencher and que'nc'her support.

6. Downcomers and braces.

7. Containment spray system.

8. Condensate and feedwater system piping from PRV to the outermost isolat ion valves and the contain"

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ment isolation val ves.

9. Primary containment access assembliesr and vacuum hatches/Locks/doors'enetration relief valves.

10. Engineering sa f e ty f ea tures actuation system.

Combustible gas control system hydrogen recombiners.

12. Instrumentation 5 controls associated with:

a) ADS (c f . Tab Le 7.3-21) b) L'PCI (c f, Table 7 3-4)

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c) NSIV-LCS d) Pr imar y containment vacuum relief system

WNP -2 e) .. Standby gas treatm nt system f)'eactor bui lding recircuLation system

,g) Reactor bui Lding isolation a'nd HVAC support system h) HabitabiLit y systemsr-controL room isolation'ng and support HVAC -systems i) ESF .auxilia ry support systems:

1) RHR service water

2) 'Containment instrument gas j) HVAC for ESF systems:

1) SGTS equipme'nt room

2) Diesel generator. bui Lding

=3) ESSW pumphouse

4) ESF switchgear room

5) ECCS unit coolers

6) Drywe'LL unit coolers

7) C'ontroL structure chiLled water system k) Reactor core isolation cooling remote shutdown

,pane L L) Safety-related display (NSSS and non-NSSS)

.m) Refueling interlock system n) Rod block monitor system o) Rod sequence control system p) Rod worth minimizer q) Diesel generator initiation (NSSS and non-NSSS)

Note: In ieu of adding a through q above to Table L

3.2-1r it,.woul.d be acceptable to add 'an ite'n 50'Instrumentation and ControL Equipment"r with a sub-1r "Safety-ReLated Instrument and-Control. Systems"r with a comment 38'Safety-reLated instrumentation and control systems and,components are identified in detail in Chapter 7r Table 7.1-1 of the FSAR. The pertinent quality assurance requirements of Section 17.2 of the FSARII will apply to these systems and components.

'l3. Onsite ac power systems (Class 1E) a) Diesel generator pack ages inct.uding auxiLiaries (e.g.i Lube systems j acket coolingr air start systems governori vol tage regulatori excitation system) 4160 voLt swi".chgear

WNP -2 c) 480V Loa'd centers d) 480V motor control centers e) Instrumentationr controLr and power, cables...

(including underground cable systems c'able splicesr

• connectorsr and terminaL= bio'cks),

f) Conduit and cable trays and their supports-Raceway instaLLations containing Class 1E cables and other raceway installations required to meet Seismic Category 1 requirements (those whose failure during a seismic event may result in damage to any Class 1E or other safety-rel.ated system or components).

g) Transformers h) Valve operators i) Protective relays and controL panels')

AC controL power inverters k) Containment electrical penetration .assemblies L) Other cable penetrations (fire stops) 14 ~ Onsite. dc power systems (Class 1E)

'4r- 125>

II a) and 250 volt, DC di stribution equipment b) Conduit and cable t rays and the i r supports'.

Raceway installations containing Class 1E cables and other raceway installations r equi red to meet Seismic Category 1 requirements (those whose failure dur ing a seismic'vent may result. in damage to any CLass 1E or other safety-related system or component's) .

c) Battery racks d) Protective relays and control panels

15. Radiation monitoring. (fixed and portable).

16." Radioact ivi ty monitoring (f ixed and portable) .

17 ~ Radioactivity sampling (airr surfaces: Liquids)..

18. Radioactive contamination measurement and analysis.

Personnel monitoring internaL (e.g.i whole body counter) and ex ter na (e'.g. r TLD system)

L

20. In'strument storager ca Librationi and maintenance.

?1. Decontamination (f ac i l i ti esr personnel i and equipment) .

22. .Respiratory protections including testi.ng.

23. Contamination control.

24. Radiation shielding.

25. meteorological data coLi.ection'rogr'ams.

26. Expendable and consumable items necessary tor the functional performance of safety"related structuresi systemsr and components (i.e.i weld rodr fueL oilr boric acids snubber oilr etc.).

27. Measuring and test equipment used for safety"related structuresr systems~ and components.

28- Safety-related masonry walLs (see IE Bulletin 80-11)

.'9.

CLass 1E electrical duct banks.

30. Buried essential .service water pipe Line.

b. The following items for Table 3.2"1 need expansion and/or clarification as noted. Review the. list as indicated or justify not doing so.

1. The heat exchangersi pumpsr interconnecting valves associated with item 21'he fuel pool piping'nd cooling and cleanup systems should be under the pertirient controls of the FSAR operational quality assurance program.

2. Reactor vessel internals (e.g... dryers~ separatorsi feedwater spargers.. jet pump instrumentationr etc.)

associated with item 1.6 should be under the part",'nent controls of the FSAR operational quality assurance program.

C ~ En clos ure 2 of NUREG-0730'CLari f ication of TNI Action Plant Requi rements" (November 1980) identified numerous items that are safety-related and appropriate for OL applic ation and therefore should be in- Table 3.2-1. These em s are L isted below. Add t'e appropriate items to Table 3 2 1 and provide a commitment that the remaining

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items are s ubject to the pertinent requirements of the FSAR o perat ional QA program or justify not doing so.

WNP-2 NUREG-0737 (Enclosure 2)

Clarification Item

1. Plant safety parameter d ~splay console. I;D.2

2. Reactor coolant system vents. II.B.1

3. Plant shielding. II;B.2 4 .. Post-.accident sampling capab i l i ty. II.B.3

5. Valve position indication. II.D.3

6. Dedicated hydrogen penetrations. II.E.4.1

7. Containment isolation dependability. II.E.4 2

8. Accident monitorirg instrumentation. II.F.'1

9. Instrumentati'on for detection of inadequate core cooling. II.F.2

10. HPCI 8 RCIC initiation Levels. II.K.3.13

11. Isolation of HPCI 5 RCIC II.K.3.15

12. Challenges to and failure of relief valves. E Ir .K.3.16

13. ADS actuation. II.K.3.18

14. Restart of core spray and LPCI. I I.K.3. 21

15. RCIC sucti or, . I I.K.3.22

,16. Space cooling for HPCI 5 RCIC. I I .K.3. 24

17. Power on -pump seals. II .K.3.25

18. Common reference Level. II.K.3.27

19. ADS valver, accumulatorsi and associated equipment and inst rumentat ion. II.K.3.28

WNP-2

20. Emer'gency plans. III.A.1.1/

III.A.2

21. Emergency support fac.ili:ies. III.A.1.2

22. In-olant I2 radiation monitoring. I I I. D ..3.3

23. Con':roL room habitability. III.D.3.4 a

Response

Table 3.2-1 wilL be modified prior, to fu'eL load to add and identify the quality class of each generic item Listed in the question and not already included in the table. Work per forned dur ing the. operat ing phaser inc iud'ing modi f i cat ioni maintenancei calibrationi and testings wiLL be performed under the applicable r equirements of the Operational Quality Assurance Program.

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