Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 10:05:33 PM (PDT) on Monday, May 3, 2021.
The magnitude 2.3 event occurred 21 km (13 miles) SSE of Ridgemark, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 2.3 - duration magnitude (Md)
Time Monday, May 3, 2021 at 10:05:33 PM (PDT)
Tuesday, May 4, 2021 at 5:05:33 (UTC)
Distance from Ridgemark, CA - 21 km (13 miles) SSE (153 degrees)
Gonzales, CA - 23 km (14 miles) NE (47 degrees)
Chualar, CA - 25 km (15 miles) ENE (70 degrees)
Soledad, CA - 25 km (16 miles) NNE (14 degrees)
Hollister, CA - 26 km (16 miles) SSE (151 degrees)
Coordinates 36 deg. 38.7 min. N (36.645N), 121 deg. 15.5 min. W (121.259W)
Depth 3.96 km (2.5 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=25, Dmin=6.2 km, Rmss=0.1 sec, Erho=0.3 km, Erzz=1.45 km, Gp=68 degrees
Event ID# nc73557920
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