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 5:10:48 AM (PST) on Wednesday, December 24, 2025.
The magnitude 1.0 event occurred 7 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Wednesday, December 24, 2025 at 5:10:48 AM (PST)
Wednesday, December 24, 2025 at 13:10:48 (UTC)
Distance from Cobb, CA - 7 km (4 miles) WNW (297 degrees)
The Geysers, CA - 9 km (6 miles) NNW (337 degrees)
Kelseyville, CA - 15 km (9 miles) SSE (165 degrees)
Soda Bay, CA - 17 km (10 miles) S (182 degrees)
Lower Lake, CA - 17 km (11 miles) WSW (248 degrees)
Coordinates 38 deg. 51.1 min. N (38.851N), 122 deg. 47.8 min. W (122.797W)
Depth 10.71 km (6.70 miles)
Quality Fair
Location Quality Parameters Nst=7, Nph=7, Dmin=0.4 km, Rmss=0.09 sec, Erho=2.68 km, Erzz=10.25 km, Gp=120 degrees
Event ID# nc75285666
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