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 7:37:28 AM (PDT) on Wednesday, October 1, 2025.
The magnitude 1.1 event occurred 4 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is -0.02 km (-0.00 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Wednesday, October 1, 2025 at 7:37:28 AM (PDT) Wednesday, October 1, 2025 at 14:37:28 (UTC) |
| Distance from |
The Geysers, CA - 4 km (3 miles) NW (325 degrees) Cobb, CA - 6 km (3 miles) WSW (256 degrees) Middletown, CA - 16 km (10 miles) WNW (293 degrees) Kelseyville, CA - 19 km (12 miles) SSE (166 degrees) Lower Lake, CA - 19 km (12 miles) SW (234 degrees) |
| Coordinates | 38 deg. 48.6 min. N (38.810N), 122 deg. 47.2 min. W (122.786W) |
| Depth | -0.02 km (-0.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=0.6 km, Rmss=0.04 sec, Erho=0.23 km, Erzz=0.49000001 km, Gp=63 degrees |
| Event ID# | nc75243506 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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