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 12:17:58 PM (PST) on Thursday, December 11, 2025.
The magnitude 2.0 event occurred 6 km (4 miles) E (87 degrees) of Brooktrails, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 2.0 - duration magnitude (Md)
Time Thursday, December 11, 2025 at 12:17:58 PM (PST)
Thursday, December 11, 2025 at 20:17:58 (UTC)
Distance from Brooktrails, CA - 6 km (4 miles) E (87 degrees)
Willits, CA - 6 km (4 miles) NE (44 degrees)
Redwood Valley, CA - 22 km (14 miles) NNW (336 degrees)
Laytonville, CA - 31 km (19 miles) SSE (151 degrees)
Ukiah, CA - 34 km (21 miles) NNW (345 degrees)
Coordinates 39 deg. 26.8 min. N (39.447N), 123 deg. 18.6 min. W (123.310W)
Depth 4.40 km (2.70 miles)
Quality Excellent
Location Quality Parameters Nst=17, Nph=17, Dmin=3.4 km, Rmss=0.07 sec, Erho=0.31 km, Erzz=0.779999971 km, Gp=70 degrees
Event ID# nc75278396
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