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09/28/2004 M5 Aftershock
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR
Version #3: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A moderate earthquake occurred at 10:10:04 AM (PDT) on Wednesday, September 29, 2004.
The magnitude 5.0 event occurred 9 km (5 miles) NW of Parkfield, CA.
The hypocentral depth is 12 km ( 7 miles).
| Magnitude | 5.0 - regional moment magnitude (Mw) |
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| Time | Wednesday, September 29, 2004 at 10:10:04 AM (PDT) Wednesday, September 29, 2004 at 17:10:04 (UTC) |
| Distance from | Parkfield, CA - 9 km (5 miles) NW (313 degrees) Coalinga, CA - 25 km (15 miles) SSW (212 degrees) San Miguel, CA - 28 km (18 miles) NE (38 degrees) Bradley, CA - 29 km (18 miles) ENE (70 degrees) San Jose City Hall, CA - 198 km (123 miles) SE (141 degrees) |
| Coordinates | 35 deg. 57.2 min. N (35.953N), 120 deg. 30.1 min. W (120.502W) |
| Depth | 11.5 km (7.1 miles) |
| Location Quality | Excellent |
| Location Quality Parameters | Nst=250, Nph=250, Dmin=0 km, Rmss=0.08 sec, Erho=0.1 km, Erzz=0.2 km, Gp=32.4 degrees |
| Event ID# | nc51148805 |
| Additional Information | map with fault names Topo map centered at earthquake (This link takes you offsite). |
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Northern California Management Center |
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Last modified: Wed Jan 17 18:17:55 PST 2007