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 8:01:38 PM (PDT) on Wednesday, July 21, 2021.
The magnitude 0.5 event occurred 6 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.5 - duration magnitude (Md)
Time Wednesday, July 21, 2021 at 8:01:38 PM (PDT)
Thursday, July 22, 2021 at 3:01:38 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NW (319 degrees)
Cobb, CA - 7 km (4 miles) W (268 degrees)
Kelseyville, CA - 18 km (11 miles) S (170 degrees)
Middletown, CA - 18 km (11 miles) WNW (295 degrees)
Cloverdale, CA - 19 km (12 miles) E (85 degrees)
Coordinates 38 deg. 49.2 min. N (38.820N), 122 deg. 48.2 min. W (122.804W)
Depth 2.64 km (1.6 miles)
Quality Excellent
Location Quality Parameters Nst=22, Nph=22, Dmin=0.7 km, Rmss=0.02 sec, Erho=0.23 km, Erzz=0.56 km, Gp=42 degrees
Event ID# nc73597276
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For more information, see https://earthquake.usgs.gov

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