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 8:25:28 AM (PST) on Tuesday, December 9, 2025.
The magnitude 2.2 event occurred 12 km (8 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Tuesday, December 9, 2025 at 8:25:28 AM (PST) Tuesday, December 9, 2025 at 16:25:28 (UTC) |
| Distance from |
The Geysers, CA - 12 km (8 miles) NW (305 degrees) Cloverdale, CA - 13 km (8 miles) ENE (72 degrees) Cobb, CA - 13 km (8 miles) W (279 degrees) Kelseyville, CA - 15 km (10 miles) S (191 degrees) Soda Bay, CA - 19 km (12 miles) SSW (203 degrees) |
| Coordinates | 38 deg. 50.5 min. N (38.842N), 122 deg. 52.4 min. W (122.874W) |
| Depth | 3.01 km (1.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=49, Nph=48, Dmin=0.5 km, Rmss=0.05 sec, Erho=0.19 km, Erzz=0.280000001 km, Gp=73 degrees |
| Event ID# | nc75277371 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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