Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 10:32:24 PM (PDT) on Thursday, September 25, 2025.
The magnitude 1.8 event occurred 29 km (18 miles) S of Fort Bragg, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Thursday, September 25, 2025 at 10:32:24 PM (PDT) Friday, September 26, 2025 at 5:32:24 (UTC) |
| Distance from |
Fort Bragg, CA - 29 km (18 miles) S (173 degrees) Boonville, CA - 39 km (24 miles) WNW (300 degrees) Brooktrails, CA - 43 km (27 miles) SW (228 degrees) Willits, CA - 43 km (27 miles) SW (234 degrees) Ukiah, CA - 48 km (30 miles) W (275 degrees) |
| Coordinates | 39 deg. 11.0 min. N (39.183N), 123 deg. 45.7 min. W (123.761W) |
| Depth | 3.69 km (2.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=19, Nph=26, Dmin=8.6 km, Rmss=0.07 sec, Erho=0.35 km, Erzz=0.67 km, Gp=199 degrees |
| Event ID# | nc75242187 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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