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 6:42:50 PM (PST) on Sunday, December 21, 2025.
The magnitude 1.3 event occurred 2 km (2 miles) E (99 degrees) of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Sunday, December 21, 2025 at 6:42:50 PM (PST) Monday, December 22, 2025 at 2:42:50 (UTC) |
| Distance from |
The Geysers, CA - 2 km (2 miles) E (99 degrees) Cobb, CA - 5 km (3 miles) S (185 degrees) Middletown, CA - 10 km (6 miles) WNW (284 degrees) Hidden Valley Lake, CA - 15 km (9 miles) WSW (256 degrees) Lower Lake, CA - 18 km (11 miles) SW (214 degrees) |
| Coordinates | 38 deg. 46.4 min. N (38.774N), 122 deg. 43.7 min. W (122.728W) |
| Depth | 1.00 km (0.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=1.3 km, Rmss=0.04 sec, Erho=0.31 km, Erzz=0.400000006 km, Gp=98 degrees |
| Event ID# | nc75284501 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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