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 5:21:06 AM (PST) on Sunday, December 28, 2025.
The magnitude 1.9 event occurred 11 km (7 miles) ESE of Hidden Valley Lake, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.9 - duration magnitude (Md) |
| Time | Sunday, December 28, 2025 at 5:21:06 AM (PST) Sunday, December 28, 2025 at 13:21:06 (UTC) |
| Distance from |
Hidden Valley Lake, CA - 11 km (7 miles) ESE (102 degrees) Middletown, CA - 16 km (10 miles) ENE (76 degrees) Lower Lake, CA - 20 km (13 miles) SE (132 degrees) Angwin, CA - 24 km (15 miles) N (3 degrees) Cobb, CA - 25 km (16 miles) E (99 degrees) |
| Coordinates | 38 deg. 47.3 min. N (38.788N), 122 deg. 26.1 min. W (122.436W) |
| Depth | 8.66 km (5.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=2.2 km, Rmss=0.07 sec, Erho=0.38 km, Erzz=0.939999998 km, Gp=117 degrees |
| Event ID# | nc75287501 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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