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 7:04:53 AM (PDT) on Wednesday, October 1, 2025.
The magnitude 1.7 event occurred 33 km (20 miles) ENE (66 degrees) of Willits, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Wednesday, October 1, 2025 at 7:04:53 AM (PDT)
Wednesday, October 1, 2025 at 14:04:53 (UTC)
Distance from Willits, CA - 33 km (20 miles) ENE (66 degrees)
Brooktrails, CA - 34 km (21 miles) ENE (73 degrees)
Redwood Valley, CA - 34 km (21 miles) NNE (30 degrees)
Covelo, CA - 36 km (22 miles) SE (145 degrees)
Upper Lake, CA - 42 km (26 miles) NNW (348 degrees)
Coordinates 39 deg. 31.9 min. N (39.531N), 123 deg. 0.5 min. W (123.008W)
Depth 9.33 km (5.80 miles)
Quality Good
Location Quality Parameters Nst=10, Nph=10, Dmin=6.1 km, Rmss=0.09 sec, Erho=0.83 km, Erzz=1.25999999 km, Gp=178 degrees
Event ID# nc75243486
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