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 7:54:43 AM (PDT) on Tuesday, May 4, 2021.
The magnitude 1.2 event occurred 10 km (6 miles) NE (39 degrees) of Ridgecrest, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Tuesday, May 4, 2021 at 7:54:43 AM (PDT)
Tuesday, May 4, 2021 at 14:54:43 (UTC)
Distance from Ridgecrest, CA - 10 km (6 miles) NE (39 degrees)
Inyokern, CA - 19 km (12 miles) ENE (75 degrees)
Searles Valley, CA - 20 km (12 miles) WSW (245 degrees)
Trona, CA - 22 km (14 miles) WSW (249 degrees)
Johannesburg, CA - 36 km (22 miles) N (4 degrees)
Coordinates 35 deg. 41.5 min. N (35.692N), 117 deg. 36.4 min. W (117.606W)
Depth 8.51 km (5.3 miles)
Quality Excellent
Location Quality Parameters Nst=29, Nph=51, Dmin=6.9 km, Rmss=0.13 sec, Erho=0.17 km, Erzz=0.49 km, Gp=67 degrees
Event ID# ci39640191
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