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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 7:59:39 PM (PDT) on Wednesday, May 1, 2013.
The magnitude 0.3 event occurred 7 km (4 miles) S of Tres Pinos, CA.
The hypocentral depth is 2 km ( 2 miles).




Magnitude 0.3 - duration magnitude (Md)
Time Wednesday, May 1, 2013 at 7:59:39 PM (PDT)
Thursday, May 2, 2013 at 2:59:39 (UTC)
Distance from Tres Pinos, CA - 7 km (4 miles) S (185 degrees)
Hollister, CA - 16 km (10 miles) SSE (155 degrees)
San Juan Bautista, CA - 23 km (14 miles) SE (125 degrees)
Gonzales, CA - 26 km (16 miles) NNE (23 degrees)
Coordinates 36 deg. 43.6 min. N (36.726N), 121 deg. 19.6 min. W (121.327W)
Depth 2.4 km (1.5 miles)
Quality Good
Location Quality Parameters Nst= 12, Nph= 12, Dmin=5 km, Rmss=0.14 sec, Erho=1.2 km, Erzz=3.4 km, Gp=108 degrees
Event ID nc71980505
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