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Southern California Earthquake Data Center

Recent Earthquakes

Recent Earthquakes in California and Nevada

== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California

Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.


A micro earthquake occurred at 3:51:25 AM (PDT) on Thursday, May 2, 2013.
The magnitude 0.5 event occurred 16 km (10 miles) SSE of Tres Pinos, CA.
The hypocentral depth is 4 km ( 3 miles).




Magnitude 0.5 - duration magnitude (Md)
Time Thursday, May 2, 2013 at 3:51:25 AM (PDT)
Thursday, May 2, 2013 at 10:51:25 (UTC)
Distance from Tres Pinos, CA - 16 km (10 miles) SSE (168 degrees)
Pinnacles, CA - 18 km (11 miles) NW (317 degrees)
Gonzales, CA - 21 km (13 miles) NE (42 degrees)
Hollister, CA - 25 km (15 miles) SSE (155 degrees)
Coordinates 36 deg. 39.0 min. N (36.651N), 121 deg. 17.0 min. W (121.284W)
Depth 4.4 km (2.7 miles)
Quality Good
Location Quality Parameters Nst= 14, Nph= 14, Dmin=2 km, Rmss=0.11 sec, Erho=0.4 km, Erzz=1.3 km, Gp=133.2 degrees
Event ID nc71980675
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