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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 11:22:27 PM (PDT) on Sunday, May 4, 2008.
The magnitude 0.9 event occurred 2 km (1 miles) NE (40 degrees) of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.9 - duration magnitude (Md)
Time Sunday, May 4, 2008 at 11:22:27 PM (PDT)
Monday, May 5, 2008 at 6:22:27 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) NE (40 degrees)
Cloverdale, CA - 19 km (12 miles) E (88 degrees)
Kelseyville, CA - 19 km (12 miles) SSE (168 degrees)
Santa Rosa, CA - 42 km (26 miles) N (351 degrees)
Coordinates 38 deg. 48.7 min. N (38.812N), 122 deg. 47.6 min. W (122.793W)
Depth 3.1 km (1.9 miles)
Quality Excellent
Location Quality Parameters Nst= 15, Nph= 15, Dmin=0 km, Rmss=0.04 sec, Erho=0.3 km, Erzz=0.5 km, Gp=61.2 degrees
Event ID# nc40217051
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