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 9:50:35 PM (PDT) on Thursday, October 23, 2025.
The magnitude 0.8 event occurred 7 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Thursday, October 23, 2025 at 9:50:35 PM (PDT) Friday, October 24, 2025 at 4:50:35 (UTC) |
| Distance from |
The Geysers, CA - 7 km (4 miles) NW (321 degrees) Cobb, CA - 7 km (4 miles) W (272 degrees) Kelseyville, CA - 17 km (11 miles) S (170 degrees) Cloverdale, CA - 18 km (11 miles) E (83 degrees) Middletown, CA - 18 km (11 miles) WNW (296 degrees) |
| Coordinates | 38 deg. 49.5 min. N (38.824N), 122 deg. 48.3 min. W (122.805W) |
| Depth | 2.16 km (1.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=14, Nph=14, Dmin=2.0 km, Rmss=0.02 sec, Erho=0.27 km, Erzz=0.639999986 km, Gp=61 degrees |
| Event ID# | nc75253786 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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