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

A micro earthquake occurred at 2:39:01 PM (PDT) on Wednesday, September 11, 2019.
The magnitude 1.0 event occurred 5 km (3 miles) S of Mentone, CA.
The hypocentral depth is 8 km ( 5 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Wednesday, September 11, 2019 at 2:39:01 PM (PDT)
Wednesday, September 11, 2019 at 21:39:01 (UTC)
Distance from Mentone, CA - 5 km (3 miles) S (177 degrees)
Redlands, CA - 6 km (4 miles) SE (125 degrees)
Yucaipa, CA - 8 km (5 miles) W (264 degrees)
Calimesa, CA - 8 km (5 miles) WNW (300 degrees)
Loma Linda, CA - 12 km (8 miles) ESE (102 degrees)
Coordinates 34 deg. 1.6 min. N (34.026N), 117 deg. 7.9 min. W (117.132W)
Depth 8.3 km (5.2 miles)
Quality Good
Location Quality Parameters Nst=27, Nph=33, Dmin=9.4 km, Rmss=0.24 sec, Erho=0.35 km, Erzz=1.26 km, Gp=55 degrees
Event ID# ci38827983
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