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 7:59:09 AM (PDT) on Friday, September 10, 2021.
The magnitude 2.4 event occurred 21 km (13 miles) SSE of Ridgemark, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 2.4 - duration magnitude (Md)
Time Friday, September 10, 2021 at 7:59:09 AM (PDT)
Friday, September 10, 2021 at 14:59:09 (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 (71 degrees)
Soledad, CA - 25 km (16 miles) NNE (14 degrees)
Hollister, CA - 26 km (16 miles) SSE (151 degrees)
Coordinates 36 deg. 38.6 min. N (36.644N), 121 deg. 15.5 min. W (121.258W)
Depth 3.93 km (2.4 miles)
Quality Good
Location Quality Parameters Nst=37, Nph=32, Dmin=6.3 km, Rmss=0.1 sec, Erho=0.25 km, Erzz=0.94 km, Gp=66 degrees
Event ID# nc73623146
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