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 0:11:10 AM (PDT) on Friday, April 30, 2021.
The magnitude 0.8 event occurred 3 km (2 miles) SSE of Muscoy, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Friday, April 30, 2021 at 0:11:10 AM (PDT)
Friday, April 30, 2021 at 7:11:10 (UTC)
Distance from Muscoy, CA - 3 km (2 miles) SSE (152 degrees)
San Bernardino, CA - 3 km (2 miles) W (275 degrees)
Rialto, CA - 5 km (3 miles) NE (52 degrees)
Colton, CA - 7 km (4 miles) NNW (347 degrees)
Bloomington, CA - 9 km (6 miles) NE (41 degrees)
Coordinates 34 deg. 7.9 min. N (34.132N), 117 deg. 19.8 min. W (117.330W)
Depth 11.39 km (7.1 miles)
Quality Good
Location Quality Parameters Nst=23, Nph=27, Dmin=14.2 km, Rmss=0.23 sec, Erho=0.4 km, Erzz=1.3 km, Gp=58 degrees
Event ID# ci39636135
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