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== 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 3:42:31 AM (PDT) on Tuesday, May 6, 2008.
The magnitude 1.4 event occurred 4 km (2 miles) NE (36 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 1.4 - duration magnitude (Md)
Time Tuesday, May 6, 2008 at 3:42:31 AM (PDT)
Tuesday, May 6, 2008 at 10:42:31 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) NE (36 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (164 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (238 degrees)
Santa Rosa, CA - 43 km (27 miles) N (352 degrees)
Coordinates 38 deg. 49.5 min. N (38.825N), 122 deg. 46.9 min. W (122.781W)
Depth 1.9 km (1.2 miles)
Quality Good
Location Quality Parameters Nst= 15, Nph= 15, Dmin=2 km, Rmss=0.03 sec, Erho=0.3 km, Erzz=0.5 km, Gp=104.4 degrees
Event ID# nc40217121
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