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

A micro earthquake occurred at 8:05:14 PM (PDT) on Saturday, May 4, 2013.
The magnitude 1.8 event occurred 20 km (12 miles) ESE of Anza, CA.
The hypocentral depth is 10 km ( 6 miles).



Magnitude 1.8 - local magnitude (Ml)
Time Saturday, May 4, 2013 at 8:05:14 PM (PDT)
Sunday, May 5, 2013 at 3:05:14 (UTC)
Distance from Anza, CA - 20 km (12 miles) ESE (106 degrees)
Palm Desert, CA - 25 km (16 miles) SSW (197 degrees)
Borrego Springs, CA - 29 km (18 miles) NNW (342 degrees)
Palm Springs, CA - 35 km (22 miles) SSE (168 degrees)
Coordinates 33 deg. 30.4 min. N (33.507N), 116 deg. 28.1 min. W (116.469W)
Depth 9.5 km (5.9 miles)
Quality Good
Location Quality Parameters Nst= 58, Nph= 83, Dmin=4 km, Rmss=0.17 sec, Erho=0.2 km, Erzz=0.4 km, Gp=79.2 degrees
Event ID# ci15337785
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