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 10:16:01 PM (PDT) on Saturday, April 3, 2021.
The magnitude 0.9 event occurred 2 km (1 miles) NNW of Loma Linda, CA.
The hypocentral depth is 17 km (11 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Saturday, April 3, 2021 at 10:16:01 PM (PDT)
Sunday, April 4, 2021 at 5:16:01 (UTC)
Distance from Loma Linda, CA - 2 km (1 miles) NNW (339 degrees)
Colton, CA - 4 km (3 miles) ESE (106 degrees)
Grand Terrace, CA - 5 km (3 miles) NE (52 degrees)
San Bernardino, CA - 8 km (5 miles) SSE (163 degrees)
Redlands, CA - 8 km (5 miles) W (276 degrees)
Coordinates 34 deg. 3.8 min. N (34.063N), 117 deg. 16.1 min. W (117.268W)
Depth 17.17 km (10.7 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=36, Dmin=12.6 km, Rmss=0.2 sec, Erho=0.34 km, Erzz=0.82 km, Gp=49 degrees
Event ID# ci39837984
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