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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 9:20:28 PM (PDT) on Saturday, May 4, 2013.
The magnitude 1.1 event occurred 4 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.1 - duration magnitude (Md)
Time Saturday, May 4, 2013 at 9:20:28 PM (PDT)
Sunday, May 5, 2013 at 4:20:28 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) NNW (327 degrees)
Cloverdale, CA - 16 km (10 miles) E (81 degrees)
Kelseyville, CA - 17 km (10 miles) S (178 degrees)
Santa Rosa, CA - 44 km (28 miles) NNW (347 degrees)
Coordinates 38 deg. 49.7 min. N (38.828N), 122 deg. 49.9 min. W (122.832W)
Depth 2.7 km (1.7 miles)
Quality Excellent
Location Quality Parameters Nst= 21, Nph= 21, Dmin=1 km, Rmss=0.05 sec, Erho=0.2 km, Erzz=0.4 km, Gp=61.2 degrees
Event ID# nc71985666
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