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 6:36:16 PM (PST) on Monday, December 29, 2025.
The magnitude 2.2 event occurred 3 km (2 miles) NNE (30 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Monday, December 29, 2025 at 6:36:16 PM (PST) Tuesday, December 30, 2025 at 2:36:16 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) NNE (30 degrees) Cobb, CA - 3 km (2 miles) SSW (210 degrees) Middletown, CA - 12 km (7 miles) WNW (298 degrees) Lower Lake, CA - 16 km (10 miles) SW (223 degrees) Hidden Valley Lake, CA - 16 km (10 miles) W (268 degrees) |
| Coordinates | 38 deg. 48.2 min. N (38.803N), 122 deg. 44.3 min. W (122.738W) |
| Depth | 1.65 km (1.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=57, Nph=54, Dmin=1.9 km, Rmss=0.10 sec, Erho=0.19 km, Erzz=0.300000012 km, Gp=56 degrees |
| Event ID# | nc75288346 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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