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== 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 2:35:27 AM (PDT) on Tuesday, September 15, 2020.
The magnitude 1.6 event occurred 20 km (12 miles) SE of Ridgemark, CA.
The hypocentral depth is 19 km (12 miles).



Magnitude 1.6 - duration magnitude (Md)
Time Tuesday, September 15, 2020 at 2:35:27 AM (PDT)
Tuesday, September 15, 2020 at 9:35:27 (UTC)
Distance from Ridgemark, CA - 20 km (12 miles) SE (145 degrees)
Hollister, CA - 25 km (15 miles) SE (145 degrees)
Gonzales, CA - 26 km (16 miles) NE (46 degrees)
Chualar, CA - 27 km (17 miles) ENE (67 degrees)
Soledad, CA - 28 km (17 miles) NNE (16 degrees)
Coordinates 36 deg. 40.0 min. N (36.667N), 121 deg. 14.3 min. W (121.238W)
Depth 18.93 km (11.8 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=5, Dmin=4.7 km, Rmss=0.02 sec, Erho=1.13 km, Erzz=2 km, Gp=141 degrees
Event ID# nc73458176
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