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 2:55:36 PM (PDT) on Friday, October 3, 2025.
The magnitude 1.1 event occurred 1 km (1 miles) ESE of The Geysers, CA.
The hypocentral depth is -1 km (-0.50 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Friday, October 3, 2025 at 2:55:36 PM (PDT)
Friday, October 3, 2025 at 21:55:36 (UTC)
Distance from The Geysers, CA - 1 km (1 miles) ESE (109 degrees)
Cobb, CA - 6 km (4 miles) SSW (202 degrees)
Middletown, CA - 12 km (7 miles) WNW (282 degrees)
Hidden Valley Lake, CA - 17 km (10 miles) WSW (257 degrees)
Lower Lake, CA - 19 km (12 miles) SW (218 degrees)
Coordinates 38 deg. 46.5 min. N (38.775N), 122 deg. 44.8 min. W (122.747W)
Depth -0.86 km (-0.50 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=6, Dmin=1.3 km, Rmss=0.29 sec, Erho=0.96 km, Erzz=3.75999999 km, Gp=92 degrees
Event ID# nc75244471
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