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 9:48:36 PM (PST) on Tuesday, December 30, 2025.
The magnitude 2.2 event occurred 7 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Tuesday, December 30, 2025 at 9:48:36 PM (PST) Wednesday, December 31, 2025 at 5:48:36 (UTC) |
| Distance from |
The Geysers, CA - 7 km (4 miles) NW (323 degrees) Cobb, CA - 7 km (4 miles) W (273 degrees) Kelseyville, CA - 17 km (11 miles) S (169 degrees) Middletown, CA - 18 km (11 miles) WNW (297 degrees) Cloverdale, CA - 19 km (12 miles) E (83 degrees) |
| Coordinates | 38 deg. 49.5 min. N (38.825N), 122 deg. 48.2 min. W (122.803W) |
| Depth | 1.56 km (1.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=42, Nph=42, Dmin=0.7 km, Rmss=0.05 sec, Erho=0.15 km, Erzz=0.230000004 km, Gp=33 degrees |
| Event ID# | nc75288846 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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