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 3:27:21 PM (PDT) on Wednesday, October 1, 2025.
The magnitude 1.3 event occurred 4 km (2 miles) W of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Wednesday, October 1, 2025 at 3:27:21 PM (PDT) Wednesday, October 1, 2025 at 22:27:21 (UTC) |
| Distance from |
Cobb, CA - 4 km (2 miles) W (271 degrees) The Geysers, CA - 5 km (3 miles) N (352 degrees) Middletown, CA - 15 km (9 miles) WNW (301 degrees) Lower Lake, CA - 17 km (10 miles) SW (234 degrees) Kelseyville, CA - 18 km (11 miles) SSE (160 degrees) |
| Coordinates | 38 deg. 49.4 min. N (38.823N), 122 deg. 45.9 min. W (122.765W) |
| Depth | 1.91 km (1.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=19, Nph=19, Dmin=0.9 km, Rmss=0.03 sec, Erho=0.29 km, Erzz=0.419999987 km, Gp=121 degrees |
| Event ID# | nc75243656 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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