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

A micro earthquake occurred at 11:06:27 PM (PDT) on Friday, May 3, 2013.
The magnitude 0.8 event occurred 3 km (2 miles) SE of Yucaipa, CA.
The hypocentral depth is 20 km (12 miles).



Magnitude 0.8 - local magnitude (Ml)
Time Friday, May 3, 2013 at 11:06:27 PM (PDT)
Saturday, May 4, 2013 at 6:06:27 (UTC)
Distance from Yucaipa, CA - 3 km (2 miles) SE (132 degrees)
Beaumont, CA - 10 km (6 miles) NNW (342 degrees)
Redlands, CA - 16 km (10 miles) ESE (105 degrees)
San Bernardino, CA - 28 km (17 miles) ESE (111 degrees)
Coordinates 34 deg. 1.0 min. N (34.017N), 117 deg. 0.7 min. W (117.012W)
Depth 19.5 km (12.1 miles)
Quality Good
Location Quality Parameters Nst= 27, Nph= 40, Dmin=7 km, Rmss=0.17 sec, Erho=0.4 km, Erzz=0.7 km, Gp=82.8 degrees
Event ID# ci15337433
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