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 10:06:36 PM (PDT) on Wednesday, October 1, 2025.
The magnitude 1.7 event occurred 3 km (2 miles) ENE (68 degrees) of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Wednesday, October 1, 2025 at 10:06:36 PM (PDT) Thursday, October 2, 2025 at 5:06:36 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) ENE (68 degrees) Cobb, CA - 4 km (2 miles) S (183 degrees) Middletown, CA - 10 km (6 miles) WNW (292 degrees) Hidden Valley Lake, CA - 15 km (9 miles) W (261 degrees) Lower Lake, CA - 17 km (11 miles) SW (216 degrees) |
| Coordinates | 38 deg. 47.2 min. N (38.787N), 122 deg. 43.5 min. W (122.726W) |
| Depth | 0.97 km (0.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=22, Nph=22, Dmin=1.1 km, Rmss=0.03 sec, Erho=0.24 km, Erzz=0.540000021 km, Gp=85 degrees |
| Event ID# | nc75243761 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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