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 9:42:19 AM (PDT) on Thursday, September 9, 2021.
The magnitude 2.4 event occurred 6 km (4 miles) NNW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 2.4 - duration magnitude (Md)
Time Thursday, September 9, 2021 at 9:42:19 AM (PDT)
Thursday, September 9, 2021 at 16:42:19 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NNW (330 degrees)
Cobb, CA - 6 km (4 miles) W (275 degrees)
Kelseyville, CA - 17 km (11 miles) SSE (166 degrees)
Middletown, CA - 17 km (11 miles) WNW (298 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (239 degrees)
Coordinates 38 deg. 49.6 min. N (38.826N), 122 deg. 47.5 min. W (122.792W)
Depth 2.3 km (1.4 miles)
Quality Excellent
Location Quality Parameters Nst=35, Nph=33, Dmin=1.8 km, Rmss=0.08 sec, Erho=0.22 km, Erzz=0.45 km, Gp=56 degrees
Event ID# nc73622701
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For more information, see https://earthquake.usgs.gov

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