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 10:23:23 PM (PDT) on Wednesday, October 1, 2025.
The magnitude 1.8 event occurred 9 km (6 miles) NW of The Geysers, CA.
The hypocentral depth is 0.40 km (0.20 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Wednesday, October 1, 2025 at 10:23:23 PM (PDT) Thursday, October 2, 2025 at 5:23:23 (UTC) |
| Distance from |
The Geysers, CA - 9 km (6 miles) NW (321 degrees) Cobb, CA - 9 km (6 miles) WNW (285 degrees) Kelseyville, CA - 15 km (9 miles) S (175 degrees) Cloverdale, CA - 17 km (11 miles) ENE (76 degrees) Soda Bay, CA - 18 km (11 miles) S (190 degrees) |
| Coordinates | 38 deg. 50.6 min. N (38.843N), 122 deg. 49.5 min. W (122.824W) |
| Depth | 0.40 km (0.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=30, Nph=29, Dmin=1.1 km, Rmss=0.02 sec, Erho=0.15 km, Erzz=0.289999992 km, Gp=55 degrees |
| Event ID# | nc75243776 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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