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 11:59:12 PM (PDT) on Wednesday, October 15, 2025.
The magnitude 1.2 event occurred 5 km (3 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.2 - duration magnitude (Md)
Time Wednesday, October 15, 2025 at 11:59:12 PM (PDT)
Thursday, October 16, 2025 at 6:59:12 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) ESE (103 degrees)
Cobb, CA - 6 km (4 miles) SSE (163 degrees)
Middletown, CA - 8 km (5 miles) WNW (283 degrees)
Hidden Valley Lake, CA - 13 km (8 miles) WSW (250 degrees)
Lower Lake, CA - 18 km (11 miles) SSW (207 degrees)
Coordinates 38 deg. 46.1 min. N (38.768N), 122 deg. 42.1 min. W (122.702W)
Depth 2.13 km (1.30 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=11, Dmin=0.2 km, Rmss=0.02 sec, Erho=0.35 km, Erzz=0.460000008 km, Gp=116 degrees
Event ID# nc75250026
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For more information, see https://earthquake.usgs.gov

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