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 3:50:31 AM (PDT) on Friday, September 10, 2021.
The magnitude 1.1 event occurred 7 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.1 - duration magnitude (Md)
Time Friday, September 10, 2021 at 3:50:31 AM (PDT)
Friday, September 10, 2021 at 10:50:31 (UTC)
Distance from The Geysers, CA - 7 km (4 miles) NW (319 degrees)
Cobb, CA - 7 km (5 miles) W (271 degrees)
Kelseyville, CA - 17 km (11 miles) S (171 degrees)
Cloverdale, CA - 18 km (11 miles) E (84 degrees)
Middletown, CA - 19 km (12 miles) WNW (295 degrees)
Coordinates 38 deg. 49.4 min. N (38.824N), 122 deg. 48.5 min. W (122.809W)
Depth 1.13 km (0.7 miles)
Quality Excellent
Location Quality Parameters Nst=20, Nph=20, Dmin=2.1 km, Rmss=0.03 sec, Erho=0.19 km, Erzz=0.51 km, Gp=37 degrees
Event ID# nc73623041
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For more information, see https://earthquake.usgs.gov

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