== 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 4:34:01 AM (PDT) on Wednesday, May 7, 2008.
The magnitude 1.8 event occurred 5 km (3 miles) ESE of Danville, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | |
1.8 - duration magnitude (Md) |
| Time | |
Wednesday, May 7, 2008 at 4:34:01 AM (PDT) Wednesday, May 7, 2008 at 11:34:01 (UTC) |
| Distance from | |
Danville, CA - 5 km (3 miles) ESE (103 degrees) San Ramon, CA - 5 km (3 miles) NE (42 degrees) Alamo, CA - 9 km (6 miles) ESE (118 degrees) San Francisco City Hall, CA - 42 km (26 miles) E (84 degrees) |
| Coordinates | |
37 deg. 48.7 min. N (37.811N), 121 deg. 56.4 min. W (121.941W) |
| Depth | |
7.9 km (4.9 miles) |
| Quality | |
Excellent |
| Location Quality Parameters | |
Nst= 31, Nph= 31, Dmin=7 km, Rmss=0.06 sec, Erho=0.2 km, Erzz=0.4 km, Gp=64.8 degrees |
| Event ID# | |
nc40217181 |
| Additional Information | |
map || waveforms |
| Waveforms |
For more information, see http://quake.wr.usgs.gov/
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