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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #0: 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 2:03:35 PM (PDT) on Thursday, May 2, 2013.
The magnitude 0.4 event occurred 2 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 0.4 - duration magnitude (Md)
Time Thursday, May 2, 2013 at 2:03:35 PM (PDT)
Thursday, May 2, 2013 at 21:03:35 (UTC)
Distance from The Geysers, CA - 2 km (2 miles) NNW (346 degrees)
Cloverdale, CA - 18 km (11 miles) E (85 degrees)
Kelseyville, CA - 18 km (11 miles) S (173 degrees)
Santa Rosa, CA - 43 km (27 miles) NNW (348 degrees)
Coordinates 38 deg. 49.2 min. N (38.819N), 122 deg. 48.8 min. W (122.814W)
Depth 4.1 km (2.5 miles)
Quality Excellent
Location Quality Parameters Nst= 10, Nph= 10, Dmin=2 km, Rmss=0.06 sec, Erho=0.5 km, Erzz=1.5 km, Gp=86.4 degrees
Event ID# nc71984326
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