ML090690209: Difference between revisions

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| number = ML090690209
| number = ML090690209
| issue date = 11/21/2008
| issue date = 11/21/2008
| title = 11/21/2008 Meeting Slides, Summary of Preliminary Findings from the Usgs/Pg&E Hazard Studies for the Central Coastal California Region, Diablo Canyon Power Plant, Unit Nos. 1 and 2, from Pacific Gas & Electric
| title = Meeting Slides, Summary of Preliminary Findings from the Usgs/Pg&E Hazard Studies for the Central Coastal California Region, Diablo Canyon Power Plant, Unit Nos. 1 and 2, from Pacific Gas & Electric
| author name = Hardenbeck J, Langenheim V, Watt J
| author name = Hardenbeck J, Langenheim V, Watt J
| author affiliation = Pacific Gas & Electric Co
| author affiliation = Pacific Gas & Electric Co
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=Text=
=Text=
{{#Wiki_filter:Summary of Preliminary Findings from the USGS/PG&E hazard studies for the Central Coastal California Region Seismicity data from the USGS: J. Hardebeck,Areo-magnetic data from V. Langenheim,Marine-magnetic data from J. Watt Regional Seismicity Based on Local Velocity ModelDouble-difference Tomography (tomoDD):-solves jointly for velocity model and earthquake locations-absolute and relative arrival times-improves both absolute and relative earthquake locations Earthquake Data:-~1400 earthquakes (exclude San Simeon aftershocks)-~26,000 P-wave and ~3000 S-wave absolute arrival times-~11,000 P-wave and ~5000 S-wave relative arrival times from waveform cross-correlation
{{#Wiki_filter:Summary of Preliminary Findings from the USGS/PG&E hazard studies for the Central Coastal California Region Seismicity data from the USGS: J. Hardebeck, Areo-magnetic data from V. Langenheim, Marine-magnetic data from J. Watt


Focal MechanismsRay tracing in 3D velocity model.Black: good quality (A-C of Hardebeck & Shearer) single-event mechanisms.Gllitil t Grey: lower qua lit y s i ng le-even t mechanisms, checked for reasonableness.Red: composite mechanisms.
Regional Seismicity Based on Local Velocity Model Double-difference Tomography (tomoDD):
DCPP Seismicity Comparison with raw (unprocessed) aeromagnetic data SeismicityComparison with raw (unprocessed) Marine Magnetic Data}}
                                    - solves jointly for velocity model and earthquake locations
                                    - absolute and relative arrival times
                                    - improves both absolute and relative earthquake locations Earthquake Data:
                                    - ~1400 earthquakes (exclude San Simeon aftershocks)
                                    - ~26,000 P-wave and ~3000 S-wave absolute arrival times
                                    - ~11,000 P-wave and ~5000 S-wave relative arrival times from waveform cross-correlation
 
Focal Mechanisms Ray tracing in 3D velocity model.
Black: good quality (A-C of Hardebeck & Shearer) single-event mechanisms.
Grey: lower G    l    quality lit single-event i l      t mechanisms, checked for reasonableness.
DCPP Red: composite mechanisms.
 
Seismicity Comparison with raw (unprocessed) aeromagnetic data Seismicity Comparison with raw (unprocessed) Marine Magnetic Data}}

Latest revision as of 02:15, 7 December 2019

Meeting Slides, Summary of Preliminary Findings from the Usgs/Pg&E Hazard Studies for the Central Coastal California Region, Diablo Canyon Power Plant, Unit Nos. 1 and 2, from Pacific Gas & Electric
ML090690209
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 11/21/2008
From: Hardenbeck J, Langenheim V, Watt J
Pacific Gas & Electric Co
To:
Office of Nuclear Reactor Regulation
Wang, A B, NRR/DORL/LPLIV, 415-1445
Shared Package
ML090690193 List:
References
TAC ME0174, TAC ME0175
Download: ML090690209 (6)
v • d • e


Text

Summary of Preliminary Findings from the USGS/PG&E hazard studies for the Central Coastal California Region Seismicity data from the USGS: J. Hardebeck, Areo-magnetic data from V. Langenheim, Marine-magnetic data from J. Watt

Regional Seismicity Based on Local Velocity Model Double-difference Tomography (tomoDD):

- solves jointly for velocity model and earthquake locations

- absolute and relative arrival times

- improves both absolute and relative earthquake locations Earthquake Data:

- ~1400 earthquakes (exclude San Simeon aftershocks)

- ~26,000 P-wave and ~3000 S-wave absolute arrival times

- ~11,000 P-wave and ~5000 S-wave relative arrival times from waveform cross-correlation

Focal Mechanisms Ray tracing in 3D velocity model.

Black: good quality (A-C of Hardebeck & Shearer) single-event mechanisms.

Grey: lower G l quality lit single-event i l t mechanisms, checked for reasonableness.

DCPP Red: composite mechanisms.

Seismicity Comparison with raw (unprocessed) aeromagnetic data Seismicity Comparison with raw (unprocessed) Marine Magnetic Data

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