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 8:31:52 PM (PDT) on Monday, October 6, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) S of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Monday, October 6, 2025 at 8:31:52 PM (PDT) Tuesday, October 7, 2025 at 3:31:52 (UTC) |
| Distance from |
Cobb, CA - 3 km (2 miles) S (172 degrees) The Geysers, CA - 4 km (2 miles) ENE (63 degrees) Middletown, CA - 10 km (6 miles) WNW (297 degrees) Hidden Valley Lake, CA - 14 km (9 miles) W (263 degrees) Lower Lake, CA - 16 km (10 miles) SW (215 degrees) |
| Coordinates | 38 deg. 47.6 min. N (38.793N), 122 deg. 43.1 min. W (122.718W) |
| Depth | 2.17 km (1.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=2.0 km, Rmss=0.01 sec, Erho=0.35 km, Erzz=0.949999988 km, Gp=99 degrees |
| Event ID# | nc75245866 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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