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 10:40:51 PM (PST) on Sunday, December 21, 2025.
The magnitude 1.1 event occurred 6 km (4 miles) NNW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Sunday, December 21, 2025 at 10:40:51 PM (PST) Monday, December 22, 2025 at 6:40:51 (UTC) |
| Distance from |
The Geysers, CA - 6 km (4 miles) NNW (327 degrees) Cobb, CA - 6 km (4 miles) W (271 degrees) Middletown, CA - 17 km (11 miles) WNW (297 degrees) Kelseyville, CA - 18 km (11 miles) SSE (167 degrees) Cloverdale, CA - 19 km (12 miles) E (84 degrees) |
| Coordinates | 38 deg. 49.4 min. N (38.823N), 122 deg. 47.7 min. W (122.795W) |
| Depth | 2.21 km (1.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=18, Nph=18, Dmin=1.3 km, Rmss=0.03 sec, Erho=0.31 km, Erzz=0.469999999 km, Gp=90 degrees |
| Event ID# | nc75284596 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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