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 6:58:24 PM (PST) on Saturday, December 13, 2025.
The magnitude 2.3 event occurred 6 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Saturday, December 13, 2025 at 6:58:24 PM (PST) Sunday, December 14, 2025 at 2:58:24 (UTC) |
| Distance from |
Cobb, CA - 6 km (4 miles) WNW (284 degrees) The Geysers, CA - 7 km (4 miles) NNW (338 degrees) Kelseyville, CA - 17 km (10 miles) SSE (164 degrees) Middletown, CA - 17 km (11 miles) WNW (302 degrees) Lower Lake, CA - 17 km (11 miles) WSW (241 degrees) |
| Coordinates | 38 deg. 50.1 min. N (38.834N), 122 deg. 47.2 min. W (122.787W) |
| Depth | 2.04 km (1.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=51, Nph=49, Dmin=0.6 km, Rmss=0.06 sec, Erho=0.16 km, Erzz=0.25 km, Gp=45 degrees |
| Event ID# | nc75279496 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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