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Southern California Earthquake Data Center

Recent Earthquakes

Recent Earthquakes in California and Nevada

== 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 7:09:18 AM (PDT) on Saturday, May 4, 2013.
The magnitude 0.8 event occurred 4 km (2 miles) SSE of Redlands, CA.
The hypocentral depth is 4 km ( 3 miles).




Magnitude 0.8 - local magnitude (Ml)
Time Saturday, May 4, 2013 at 7:09:18 AM (PDT)
Saturday, May 4, 2013 at 14:09:18 (UTC)
Distance from Redlands, CA - 4 km (2 miles) SSE (164 degrees)
Loma Linda, CA - 9 km (5 miles) ESE (110 degrees)
Yucaipa, CA - 12 km (8 miles) W (264 degrees)
San Bernardino, CA - 15 km (9 miles) SE (128 degrees)
Coordinates 34 deg. 1.3 min. N (34.022N), 117 deg. 9.9 min. W (117.166W)
Depth 4.2 km (2.6 miles)
Quality Good
Location Quality Parameters Nst= 25, Nph= 37, Dmin=5 km, Rmss=0.15 sec, Erho=0.3 km, Erzz=0.7 km, Gp=79.2 degrees
Event ID ci15337569
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