Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 12:21:59 PM (PDT) on Sunday, September 28, 2025.
The magnitude 0.4 event occurred 8 km (5 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.4 - duration magnitude (Md)
Time Sunday, September 28, 2025 at 12:21:59 PM (PDT)
Sunday, September 28, 2025 at 19:21:59 (UTC)
Distance from The Geysers, CA - 8 km (5 miles) NNW (327 degrees)
Cobb, CA - 8 km (5 miles) WNW (284 degrees)
Kelseyville, CA - 16 km (10 miles) S (170 degrees)
Cloverdale, CA - 18 km (11 miles) ENE (78 degrees)
Soda Bay, CA - 18 km (11 miles) S (185 degrees)
Coordinates 38 deg. 50.3 min. N (38.839N), 122 deg. 48.5 min. W (122.808W)
Depth 3.03 km (1.90 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=7, Dmin=2.2 km, Rmss=0.01 sec, Erho=0.47 km, Erzz=1.28 km, Gp=116 degrees
Event ID# nc75243067
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For more information, see https://earthquake.usgs.gov

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