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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 1:25:18 AM (PDT) on Tuesday, May 7, 2013.
The magnitude 0.5 event occurred 13 km (8 miles) S of Tres Pinos, CA.
The hypocentral depth is 5 km ( 3 miles).




Magnitude 0.5 - duration magnitude (Md)
Time Tuesday, May 7, 2013 at 1:25:18 AM (PDT)
Tuesday, May 7, 2013 at 8:25:18 (UTC)
Distance from Tres Pinos, CA - 13 km (8 miles) S (175 degrees)
Pinnacles, CA - 21 km (13 miles) NW (317 degrees)
Gonzales, CA - 22 km (14 miles) NNE (33 degrees)
Hollister, CA - 22 km (14 miles) SSE (158 degrees)
Coordinates 36 deg. 40.3 min. N (36.672N), 121 deg. 18.5 min. W (121.308W)
Depth 4.7 km (2.9 miles)
Quality Excellent
Location Quality Parameters Nst= 15, Nph= 15, Dmin=3 km, Rmss=0.08 sec, Erho=0.4 km, Erzz=1 km, Gp=90 degrees
Event ID nc71987046
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