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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 10:53:47 PM (PDT) on Thursday, May 2, 2013.
The magnitude 0.6 event occurred 10 km (6 miles) N (3 degrees) of Rancho Cucamonga, CA.
The hypocentral depth is 5 km ( 3 miles).




Magnitude 0.6 - local magnitude (Ml)
Time Thursday, May 2, 2013 at 10:53:47 PM (PDT)
Friday, May 3, 2013 at 5:53:47 (UTC)
Distance from Rancho Cucamonga, CA - 10 km (6 miles) N (3 degrees)
Upland, CA - 12 km (7 miles) NNE (29 degrees)
Mt. Baldy, CA - 12 km (7 miles) SSE (151 degrees)
San Bernardino, CA - 29 km (18 miles) WNW (291 degrees)
Coordinates 34 deg. 11.8 min. N (34.197N), 117 deg. 35.3 min. W (117.588W)
Depth 4.7 km (2.9 miles)
Quality Good
Location Quality Parameters Nst= 17, Nph= 25, Dmin=8 km, Rmss=0.17 sec, Erho=0.4 km, Erzz=0.6 km, Gp=57.6 degrees
Event ID ci15336721
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