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== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California



Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 8:45:38 AM (PDT) on Saturday, May 4, 2013.
The magnitude 0.4 event occurred 29 km (18 miles) ESE of Coso Junction, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Saturday, May 4, 2013 at 8:45:38 AM (PDT)
Saturday, May 4, 2013 at 15:45:38 (UTC)
Distance from Coso Junction, CA - 29 km (18 miles) ESE (120 degrees)
Ridgecrest, CA - 32 km (20 miles) N (359 degrees)
Trona, CA - 32 km (20 miles) WNW (301 degrees)
Olancha, CA - 51 km (32 miles) SE (144 degrees)
Coordinates 35 deg. 54.8 min. N (35.913N), 117 deg. 40.3 min. W (117.672W)
Depth 3 km (1.9 miles)
Quality Good
Location Quality Parameters Nst= 8, Nph= 13, Dmin=4 km, Rmss=0.14 sec, Erho=0.4 km, Erzz=1.4 km, Gp=140.4 degrees
Event ID# ci15337585
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