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 12:28:49 PM (PDT) on Wednesday, August 20, 2025.
The magnitude 1.7 event occurred 6 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Wednesday, August 20, 2025 at 12:28:49 PM (PDT)
Wednesday, August 20, 2025 at 19:28:49 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NW (326 degrees)
Cobb, CA - 6 km (4 miles) W (272 degrees)
Kelseyville, CA - 17 km (11 miles) SSE (168 degrees)
Middletown, CA - 18 km (11 miles) WNW (297 degrees)
Cloverdale, CA - 19 km (12 miles) E (84 degrees)
Coordinates 38 deg. 49.5 min. N (38.824N), 122 deg. 47.8 min. W (122.797W)
Depth 2.87 km (1.80 miles)
Quality Excellent
Location Quality Parameters Nst=40, Nph=40, Dmin=1.1 km, Rmss=0.03 sec, Erho=0.19 km, Erzz=0.310000002 km, Gp=32 degrees
Event ID# nc75226367
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