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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 7:51:02 PM (PDT) on Monday, August 12, 2019.
The magnitude 1.2 event occurred 2 km (1 miles) NW of Loma Linda, CA.
The hypocentral depth is 17 km (11 miles).



Magnitude 1.2 - local magnitude (Ml)
Time Monday, August 12, 2019 at 7:51:02 PM (PDT)
Tuesday, August 13, 2019 at 2:51:02 (UTC)
Distance from Loma Linda, CA - 2 km (1 miles) NW (324 degrees)
Colton, CA - 4 km (2 miles) ESE (109 degrees)
Grand Terrace, CA - 5 km (3 miles) NE (49 degrees)
San Bernardino, CA - 8 km (5 miles) SSE (167 degrees)
Redlands, CA - 8 km (5 miles) W (275 degrees)
Coordinates 34 deg. 3.8 min. N (34.063N), 117 deg. 16.4 min. W (117.274W)
Depth 17.03 km (10.6 miles)
Quality Good
Location Quality Parameters Nst=40, Nph=55, Dmin=8.8 km, Rmss=0.21 sec, Erho=0.32 km, Erzz=0.67 km, Gp=28 degrees
Event ID# ci38961992
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