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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #4: 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 minor earthquake occurred at 1:38:31 PM (PDT) on Wednesday, October 2, 2013.
The magnitude 3.1 event occurred 4 km (2 miles) N (8 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 3.1 - moment magnitude (Mw)
Time Wednesday, October 2, 2013 at 1:38:31 PM (PDT)
Wednesday, October 2, 2013 at 20:38:31 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) N (8 degrees)
Kelseyville, CA - 17 km (10 miles) S (169 degrees)
Cloverdale, CA - 19 km (12 miles) E (81 degrees)
Santa Rosa, CA - 44 km (28 miles) N (350 degrees)
Coordinates 38 deg. 50.0 min. N (38.833N), 122 deg. 48.0 min. W (122.800W)
Depth 2 km (1.2 miles)
Quality Excellent
Location Quality Parameters Nst= 60, Nph= 60, Dmin=1 km, Rmss=0.07 sec, Erho=0.1 km, Erzz=0.2 km, Gp=43.2 degrees
Event ID# nc72080226
Additional Information map || waveforms
   Waveforms
NCSS Moment Tensor Solution
NCSS First Motion Mechanism 1

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