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 8:24:51 PM (PST) on Monday, December 8, 2025.
The magnitude 0.8 event occurred 8 km (5 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Monday, December 8, 2025 at 8:24:51 PM (PST) Tuesday, December 9, 2025 at 4:24:51 (UTC) |
| Distance from |
The Geysers, CA - 8 km (5 miles) NW (308 degrees) Cobb, CA - 9 km (6 miles) W (270 degrees) Cloverdale, CA - 16 km (10 miles) E (84 degrees) Kelseyville, CA - 17 km (11 miles) S (177 degrees) Middletown, CA - 20 km (12 miles) WNW (293 degrees) |
| Coordinates | 38 deg. 49.3 min. N (38.822N), 122 deg. 49.8 min. W (122.829W) |
| Depth | 2.16 km (1.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=0.5 km, Rmss=0.01 sec, Erho=0.42 km, Erzz=0.930000007 km, Gp=76 degrees |
| Event ID# | nc75277106 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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