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 8:00:55 PM (PDT) on Thursday, October 9, 2025.
The magnitude 0.4 event occurred 7 km (4 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Thursday, October 9, 2025 at 8:00:55 PM (PDT) Friday, October 10, 2025 at 3:00:55 (UTC) |
| Distance from |
The Geysers, CA - 7 km (4 miles) NNW (327 degrees) Cobb, CA - 7 km (4 miles) W (278 degrees) Kelseyville, CA - 17 km (10 miles) SSE (168 degrees) Middletown, CA - 18 km (11 miles) WNW (298 degrees) Cloverdale, CA - 19 km (12 miles) E (82 degrees) |
| Coordinates | 38 deg. 49.8 min. N (38.831N), 122 deg. 48.0 min. W (122.800W) |
| Depth | 2.76 km (1.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=5, Nph=8, Dmin=1.2 km, Rmss=0.01 sec, Erho=0.49 km, Erzz=0.65 km, Gp=172 degrees |
| Event ID# | nc75247186 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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