== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #1: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 0:12:13 AM (PDT) on Wednesday, May 7, 2008.
The magnitude 1.6 event occurred 5 km (3 miles) NE (48 degrees) of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | |
1.6 - duration magnitude (Md) |
| Time | |
Wednesday, May 7, 2008 at 0:12:13 AM (PDT) Wednesday, May 7, 2008 at 7:12:13 (UTC) |
| Distance from | |
San Ramon, CA - 5 km (3 miles) NE (48 degrees) Danville, CA - 6 km (4 miles) ESE (105 degrees) Alamo, CA - 10 km (6 miles) ESE (119 degrees) San Francisco City Hall, CA - 43 km (26 miles) E (85 degrees) |
| Coordinates | |
37 deg. 48.5 min. N (37.809N), 121 deg. 56.2 min. W (121.936W) |
| Depth | |
7.5 km (4.7 miles) |
| Quality | |
Good |
| Location Quality Parameters | |
Nst= 21, Nph= 21, Dmin=7 km, Rmss=0.06 sec, Erho=0.2 km, Erzz=0.5 km, Gp=104.4 degrees |
| Event ID# | |
nc40217174 |
| Additional Information | |
map || waveforms |
| Waveforms |
For more information, see http://quake.wr.usgs.gov/
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