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 4:46:12 AM (PDT) on Friday, October 31, 2025.
The magnitude 0.8 event occurred 2 km (1 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Friday, October 31, 2025 at 4:46:12 AM (PDT) Friday, October 31, 2025 at 11:46:12 (UTC) |
| Distance from |
The Geysers, CA - 2 km (1 miles) NNW (342 degrees) Cobb, CA - 5 km (3 miles) SW (228 degrees) Middletown, CA - 14 km (8 miles) WNW (290 degrees) Hidden Valley Lake, CA - 18 km (11 miles) W (265 degrees) Lower Lake, CA - 19 km (12 miles) SW (226 degrees) |
| Coordinates | 38 deg. 47.6 min. N (38.794N), 122 deg. 45.8 min. W (122.763W) |
| Depth | 2.90 km (1.80 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=0.8 km, Rmss=0.03 sec, Erho=0.34 km, Erzz=1.33000004 km, Gp=79 degrees |
| Event ID# | nc75257066 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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