ML090720103
| ML090720103 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  (DPR-080, DPR-082) |
| Issue date: | 03/11/2009 |
| From: | Ketelsen S Pacific Gas & Electric Co |
| To: | Wang A Plant Licensing Branch IV |
| Wang, A B, NRR/DORL/LPLIV, 415-1445 | |
| Shared Package | |
| ML090720086 | List: |
| References | |
| TAC ME0174, TAC ME0175 | |
| Download: ML090720103 (12) | |
Text
J. Hardebeck (USGS)
Seismicity October 1987 to March 2007 DCPP Hosgri fault zone
Seismicity cross sections October 1987 to March 2007 J. Hardebeck (USGS)
J. Hardebeck (USGS)
Black: good quality single-event mechanisms Gray: lower quality single-event mechanisms Red: composite mechanisms Focal mechanisms show predominantly strike-slip motion in the offshore region DCPP Hosgri fault zone 1
N 15 E
Reprocessed gravity data for the region San Andreas Fault San Andreas Fault Hosgri Fault Hosgri Fault
Marine Data Marine Data Collection Collection
-June 2008
-35 ft R/V Parke Snavely
-Survey area = 900 km2
-Line Spacing (800/400 m)
-Rock samples Picture taken by: D. Scheirer Hosgri Fault Zone Cambria Fault CF Edna Fault Oceano Fault Olson Fault San Luis Bay Fault Wilmar Ave.
Fault Los Osos Fault Morro Bay Pt.
Buchon
Los Osos Fault Cambria Fault CF Edna Fault Oceano Fault Olson Fault San Luis Bay Fault Wilmar Ave.
Fault Hosgri Fault Zone
Comparison of Earthquake Locations with Marine Magnetic Data DCPP Janet Watt (USGS)
Hosgri fault zone
200 m
~ 20 m v.e ~ 3
200 m
~ 20 m v.e ~ 3
2 m multibeam bathymetry collected off Point Buchon DCPP
Initial Evaluation of Seismic Demands from Assumed Fault Magnitude Based on the size of the fault 24 km length (extended to the intersection with Hosgri) 12 km depth M = 6.5 Distance 1 km from DCPP (assumed)
Initial Evaluation of Ground Motion (84th Percentile Deterministic)