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 2:23:42 AM (PST) on Tuesday, December 30, 2025.
The magnitude 0.8 event occurred 9 km (5 miles) W of The Geysers, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Tuesday, December 30, 2025 at 2:23:42 AM (PST) Tuesday, December 30, 2025 at 10:23:42 (UTC) |
| Distance from |
The Geysers, CA - 9 km (5 miles) W (280 degrees) Cobb, CA - 12 km (7 miles) WSW (253 degrees) Cloverdale, CA - 14 km (9 miles) E (97 degrees) Healdsburg, CA - 20 km (12 miles) N (4 degrees) Kelseyville, CA - 21 km (13 miles) S (183 degrees) |
| Coordinates | 38 deg. 47.4 min. N (38.790N), 122 deg. 51.2 min. W (122.854W) |
| Depth | 7.37 km (4.60 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=1.3 km, Rmss=0.05 sec, Erho=2.39 km, Erzz=4.19000006 km, Gp=224 degrees |
| Event ID# | nc75288531 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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