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

A micro earthquake occurred at 5:47:28 PM (PDT) on Sunday, April 4, 2021.
The magnitude 0.7 event occurred 3 km (2 miles) E (97 degrees) of Loma Linda, CA.
The hypocentral depth is 15 km ( 9 miles).


Magnitude 0.7 - local magnitude (Ml)
Time Sunday, April 4, 2021 at 5:47:28 PM (PDT)
Monday, April 5, 2021 at 0:47:28 (UTC)
Distance from Loma Linda, CA - 3 km (2 miles) E (97 degrees)
Redlands, CA - 4 km (3 miles) WSW (255 degrees)
Grand Terrace, CA - 8 km (5 miles) E (81 degrees)
Colton, CA - 8 km (5 miles) ESE (112 degrees)
Highland, CA - 9 km (6 miles) SSW (192 degrees)
Coordinates 34 deg. 2.7 min. N (34.045N), 117 deg. 13.8 min. W (117.229W)
Depth 15.08 km (9.4 miles)
Quality Good
Location Quality Parameters Nst=22, Nph=39, Dmin=13.9 km, Rmss=0.14 sec, Erho=0.24 km, Erzz=0.49 km, Gp=107 degrees
Event ID# ci39838704
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