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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 3:52:18 AM (PDT) on Monday, May 5, 2008.
The magnitude 1.2 event occurred 9 km (5 miles) ESE of The Geysers, CA.
The hypocentral depth is 0 km (0.0 miles).



Magnitude 1.2 - duration magnitude (Md)
Time Monday, May 5, 2008 at 3:52:18 AM (PDT)
Monday, May 5, 2008 at 10:52:18 (UTC)
Distance from The Geysers, CA - 9 km (5 miles) ESE (119 degrees)
Lower Lake, CA - 19 km (12 miles) SSW (210 degrees)
Healdsburg, CA - 21 km (13 miles) NE (38 degrees)
Santa Rosa, CA - 36 km (22 miles) N (359 degrees)
Coordinates 38 deg. 45.6 min. N (38.761N), 122 deg. 43.2 min. W (122.720W)
Depth 0 km (0.0 miles)
Quality Good
Location Quality Parameters Nst= 9, Nph= 9, Dmin=2 km, Rmss=0.16 sec, Erho=0.5 km, Erzz=3 km, Gp=111.6 degrees
Event ID# nc40217062
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