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

A micro earthquake occurred at 8:23:10 PM (PDT) on Friday, May 3, 2013.
The magnitude 0.4 event occurred 15 km (9 miles) ESE of Ridgecrest, CA.
The hypocentral depth is 7 km ( 4 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Friday, May 3, 2013 at 8:23:10 PM (PDT)
Saturday, May 4, 2013 at 3:23:10 (UTC)
Distance from Ridgecrest, CA - 15 km (9 miles) ESE (105 degrees)
Trona, CA - 24 km (15 miles) SSW (212 degrees)
Goldstone Lake, CA - 62 km (38 miles) WNW (295 degrees)
Coso Junction, CA - 65 km (40 miles) SE (142 degrees)
Coordinates 35 deg. 35.2 min. N (35.586N), 117 deg. 30.4 min. W (117.507W)
Depth 6.8 km (4.2 miles)
Quality Fair
Location Quality Parameters Nst= 7, Nph= 11, Dmin=2 km, Rmss=0.09 sec, Erho=2 km, Erzz=0.8 km, Gp=208.8 degrees
Event ID# ci15337369
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