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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 2:55:36 AM (PDT) on Sunday, September 29, 2013.
The magnitude 0.8 event occurred 9 km (6 miles) NE (54 degrees) of Yorba Linda, CA.
The hypocentral depth is 13 km ( 8 miles).




Magnitude 0.8 - local magnitude (Ml)
Time Sunday, September 29, 2013 at 2:55:36 AM (PDT)
Sunday, September 29, 2013 at 9:55:36 (UTC)
Distance from Yorba Linda, CA - 9 km (6 miles) NE (54 degrees)
Diamond Bar, CA - 10 km (6 miles) SE (136 degrees)
Chino, CA - 10 km (6 miles) SSW (204 degrees)
Riverside, CA - 31 km (19 miles) W (266 degrees)
Coordinates 33 deg. 56.1 min. N (33.935N), 117 deg. 44.0 min. W (117.734W)
Depth 12.9 km (8.0 miles)
Quality Fair
Location Quality Parameters Nst= 14, Nph= 20, Dmin=19 km, Rmss=0.12 sec, Erho=0.7 km, Erzz=1.2 km, Gp=187.2 degrees
Event ID ci11371226
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