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

A micro earthquake occurred at 2:56:20 AM (PDT) on Tuesday, August 13, 2019.
The magnitude 1.0 event occurred 2 km (1 miles) S of Loma Linda, CA.
The hypocentral depth is 18 km (11 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, August 13, 2019 at 2:56:20 AM (PDT)
Tuesday, August 13, 2019 at 9:56:20 (UTC)
Distance from Loma Linda, CA - 2 km (1 miles) S (173 degrees)
Grand Terrace, CA - 5 km (3 miles) E (99 degrees)
Colton, CA - 7 km (5 miles) SE (136 degrees)
Redlands, CA - 8 km (5 miles) WSW (245 degrees)
Moreno Valley, CA - 12 km (7 miles) NNW (346 degrees)
Coordinates 34 deg. 1.6 min. N (34.027N), 117 deg. 15.5 min. W (117.258W)
Depth 17.64 km (11.0 miles)
Quality Good
Location Quality Parameters Nst=51, Nph=87, Dmin=8.7 km, Rmss=0.16 sec, Erho=0.19 km, Erzz=0.33 km, Gp=56 degrees
Event ID# ci38962816
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