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 0:40:51 AM (PDT) on Tuesday, October 28, 2025.
The magnitude 1.8 event occurred 2 km (1 miles) N (8 degrees) of The Geysers, CA.
The hypocentral depth is -0.05 km (-0.00 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Tuesday, October 28, 2025 at 0:40:51 AM (PDT) Tuesday, October 28, 2025 at 7:40:51 (UTC) |
| Distance from |
The Geysers, CA - 2 km (1 miles) N (8 degrees) Cobb, CA - 4 km (2 miles) SW (221 degrees) Middletown, CA - 13 km (8 miles) WNW (292 degrees) Hidden Valley Lake, CA - 17 km (11 miles) W (265 degrees) Lower Lake, CA - 18 km (11 miles) SW (224 degrees) |
| Coordinates | 38 deg. 47.7 min. N (38.795N), 122 deg. 45.2 min. W (122.753W) |
| Depth | -0.05 km (-0.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=28, Nph=27, Dmin=1.9 km, Rmss=0.03 sec, Erho=0.16 km, Erzz=0.389999986 km, Gp=52 degrees |
| Event ID# | nc75255581 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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