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 3:09:09 PM (PST) on Thursday, December 11, 2025.
The magnitude 0.4 event occurred 9 km (6 miles) WNW of The Geysers, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Thursday, December 11, 2025 at 3:09:09 PM (PST) Thursday, December 11, 2025 at 23:09:09 (UTC) |
| Distance from |
The Geysers, CA - 9 km (6 miles) WNW (286 degrees) Cobb, CA - 12 km (8 miles) W (259 degrees) Cloverdale, CA - 13 km (8 miles) E (92 degrees) Kelseyville, CA - 20 km (12 miles) S (186 degrees) Healdsburg, CA - 21 km (13 miles) N (2 degrees) |
| Coordinates | 38 deg. 48.0 min. N (38.800N), 122 deg. 51.7 min. W (122.862W) |
| Depth | 8.80 km (5.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=0.1 km, Rmss=0.08 sec, Erho=1.5 km, Erzz=1.79999995 km, Gp=186 degrees |
| Event ID# | nc75278481 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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