Recent Earthquakes in California and Nevada


== PRELIMINARY EVENT 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 quarry occurred at 11:58:31 AM (PDT) on Monday, April 5, 2021.
The magnitude 1.2 event (a probable quarry explosion) occurred 6 km (3 miles) S of Mojave, CA.
The hypocentral depth is -1 km (-0.5 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Monday, April 5, 2021 at 11:58:31 AM (PDT)
Monday, April 5, 2021 at 18:58:31 (UTC)
Distance from Mojave, CA - 6 km (3 miles) S (182 degrees)
Rosamond, CA - 15 km (10 miles) N (356 degrees)
California City, CA - 22 km (14 miles) SW (232 degrees)
Edwards Air Force Base, CA - 25 km (15 miles) WNW (296 degrees)
Tehachapi, CA - 29 km (18 miles) ESE (120 degrees)
Coordinates 35 deg. 0.1 min. N (35.002N), 118 deg. 10.5 min. W (118.176W)
Depth -0.8 km (-0.5 miles)
Quality Fair
Location Quality Parameters Nst=16, Nph=24, Dmin=14.5 km, Rmss=0.2 sec, Erho=0.35 km, Erzz=31.61 km, Gp=64 degrees
Event ID# ci39839752
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