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 is a computer-generated message. This event has not yet been reviewed by a seismologist.

A minor earthquake occurred at 3:09:00 PM (PDT) on Wednesday, August 20, 2025.
The magnitude 3.1 event occurred 10 km (6 miles) ENE (75 degrees) of Maxwell, CA.
The hypocentral depth is -0.10 km (-0.10 miles).


Magnitude 3.1 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 3:09:00 PM (PDT)
Wednesday, August 20, 2025 at 22:09:00 (UTC)
Distance from Maxwell, CA - 10 km (6 miles) ENE (75 degrees)
Colusa, CA - 11 km (7 miles) NNW (327 degrees)
Williams, CA - 17 km (11 miles) NNE (21 degrees)
Willows, CA - 27 km (17 miles) SSE (159 degrees)
Arbuckle, CA - 31 km (19 miles) N (357 degrees)
Coordinates 39 deg. 17.9 min. N (39.299N), 122 deg. 4.8 min. W (122.079W)
Depth -0.10 km (-0.10 miles)
Quality Poor
Location Quality Parameters Nst=11, Nph=11, Dmin=78.8 km, Rmss=0.26 sec, Erho=10.99 km, Erzz=19.8899994 km, Gp=234 degrees
Event ID# nc75226437
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