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

A micro earthquake occurred at 5:28:56 PM (PST) on Thursday, November 5, 2009.
The magnitude 1.5 event occurred 8 km (5 miles) W of Mt. San Gorgonio, CA.
The hypocentral depth is 9 km ( 6 miles).



Magnitude 1.5 - local magnitude (Ml)
Time Thursday, November 5, 2009 at 5:28:56 PM (PST)
Friday, November 6, 2009 at 1:28:56 (UTC)
Distance from Mt. San Gorgonio, CA - 8 km (5 miles) W (280 degrees)
Yucaipa, CA - 14 km (9 miles) NE (52 degrees)
town of Big Bear Lake, CA - 14 km (9 miles) S (181 degrees)
San Bernardino, CA - 35 km (22 miles) E (89 degrees)
Coordinates 34 deg. 6.8 min. N (34.113N), 116 deg. 54.7 min. W (116.912W)
Depth 9 km (5.6 miles)
Quality Excellent
Location Quality Parameters Nst=059, Nph=059, Dmin=3 km, Rmss=0.13 sec, Erho=0.2 km, Erzz=0.9 km, Gp=25.2 degrees
Event ID# ci10492621
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