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 event has been reviewed by a seismologist.

A micro earthquake occurred at 9:50:45 PM (PDT) on Tuesday, August 12, 2025.
The magnitude 1.8 event occurred 22 km (14 miles) SW of Willits, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Tuesday, August 12, 2025 at 9:50:45 PM (PDT)
Wednesday, August 13, 2025 at 4:50:45 (UTC)
Distance from Willits, CA - 22 km (14 miles) SW (222 degrees)
Brooktrails, CA - 24 km (15 miles) SSW (211 degrees)
Redwood Valley, CA - 28 km (17 miles) W (269 degrees)
Ukiah, CA - 30 km (19 miles) WNW (295 degrees)
Boonville, CA - 31 km (19 miles) NNW (334 degrees)
Coordinates 39 deg. 15.7 min. N (39.261N), 123 deg. 31.7 min. W (123.528W)
Depth 6.12 km (3.80 miles)
Quality Good
Location Quality Parameters Nst=24, Nph=29, Dmin=8.2 km, Rmss=0.10 sec, Erho=0.23 km, Erzz=0.71 km, Gp=67 degrees
Event ID# nc75222527
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