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


A micro earthquake occurred at 7:55:46 PM (PDT) on Tuesday, October 1, 2013.
The magnitude 1.0 event occurred 3 km (2 miles) NW of Loma Linda, CA.
The hypocentral depth is 18 km (11 miles).




Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, October 1, 2013 at 7:55:46 PM (PDT)
Wednesday, October 2, 2013 at 2:55:46 (UTC)
Distance from Loma Linda, CA - 3 km (2 miles) NW (317 degrees)
San Bernardino, CA - 5 km (3 miles) SSE (156 degrees)
Redlands, CA - 9 km (6 miles) W (277 degrees)
Rialto, CA - 10 km (6 miles) ESE (117 degrees)
Coordinates 34 deg. 3.9 min. N (34.065N), 117 deg. 16.4 min. W (117.273W)
Depth 17.7 km (11.0 miles)
Quality Good
Location Quality Parameters Nst= 33, Nph= 41, Dmin=12 km, Rmss=0.17 sec, Erho=0.4 km, Erzz=0.8 km, Gp=46.8 degrees
Event ID ci11372162
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