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 1:21:09 PM (PDT) on Tuesday, October 28, 2025.
The magnitude 1.1 event occurred 1 km (1 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Tuesday, October 28, 2025 at 1:21:09 PM (PDT) Tuesday, October 28, 2025 at 20:21:09 (UTC) |
| Distance from |
The Geysers, CA - 1 km (1 miles) ESE (102 degrees) Cobb, CA - 5 km (3 miles) SSW (195 degrees) Middletown, CA - 11 km (7 miles) WNW (283 degrees) Hidden Valley Lake, CA - 16 km (10 miles) WSW (257 degrees) Lower Lake, CA - 19 km (12 miles) SW (217 degrees) |
| Coordinates | 38 deg. 46.5 min. N (38.775N), 122 deg. 44.4 min. W (122.740W) |
| Depth | 1.05 km (0.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=14, Nph=14, Dmin=1.0 km, Rmss=0.06 sec, Erho=0.24 km, Erzz=0.370000005 km, Gp=67 degrees |
| Event ID# | nc75255906 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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