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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 4:23:58 PM (PDT) on Saturday, May 4, 2013.
The magnitude 1.4 event occurred 2 km (1 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Saturday, May 4, 2013 at 4:23:58 PM (PDT)
Saturday, May 4, 2013 at 23:23:58 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) NNW (338 degrees)
Cloverdale, CA - 18 km (11 miles) E (87 degrees)
Kelseyville, CA - 18 km (11 miles) S (174 degrees)
Santa Rosa, CA - 43 km (26 miles) NNW (348 degrees)
Coordinates 38 deg. 48.8 min. N (38.814N), 122 deg. 48.9 min. W (122.815W)
Depth 3.3 km (2.1 miles)
Quality Excellent
Location Quality Parameters Nst= 29, Nph= 29, Dmin=1 km, Rmss=0.07 sec, Erho=0.3 km, Erzz=0.4 km, Gp=46.8 degrees
Event ID# nc71985586
Additional Information map || waveforms
   Waveforms
NCSS First Motion Mechanism 1

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