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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 7:11:20 PM (PDT) on Tuesday, May 7, 2013.
The magnitude 2.2 event occurred 15 km (9 miles) NW of Pinnacles, CA.
The hypocentral depth is 7 km ( 4 miles).



Magnitude 2.2 - duration magnitude (Md)
Time Tuesday, May 7, 2013 at 7:11:20 PM (PDT)
Wednesday, May 8, 2013 at 2:11:20 (UTC)
Distance from Pinnacles, CA - 15 km (9 miles) NW (320 degrees)
Tres Pinos, CA - 18 km (11 miles) SSE (161 degrees)
Gonzales, CA - 22 km (14 miles) NE (50 degrees)
Hollister, CA - 27 km (17 miles) SSE (151 degrees)
Coordinates 36 deg. 38.2 min. N (36.637N), 121 deg. 15.2 min. W (121.253W)
Depth 6.6 km (4.1 miles)
Quality Excellent
Location Quality Parameters Nst= 67, Nph= 67, Dmin=4 km, Rmss=0.08 sec, Erho=0.1 km, Erzz=0.3 km, Gp=39.6 degrees
Event ID# nc71987591
Additional Information map || waveforms
   Waveforms
NCSS First Motion Mechanism 1

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