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 5:09:18 PM (PDT) on Thursday, October 23, 2025.
The magnitude 1.7 event occurred 6 km (4 miles) WNW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Thursday, October 23, 2025 at 5:09:18 PM (PDT) Friday, October 24, 2025 at 0:09:18 (UTC) |
| Distance from |
The Geysers, CA - 6 km (4 miles) WNW (296 degrees) Cobb, CA - 9 km (5 miles) WSW (254 degrees) Cloverdale, CA - 17 km (11 miles) E (92 degrees) Middletown, CA - 18 km (11 miles) WNW (287 degrees) Kelseyville, CA - 20 km (12 miles) S (175 degrees) |
| Coordinates | 38 deg. 48.0 min. N (38.801N), 122 deg. 49.1 min. W (122.818W) |
| Depth | 2.30 km (1.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=27, Nph=26, Dmin=1.3 km, Rmss=0.03 sec, Erho=0.19 km, Erzz=0.310000002 km, Gp=64 degrees |
| Event ID# | nc75253676 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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