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 2:05:46 AM (PDT) on Monday, October 27, 2025.
The magnitude 1.2 event occurred 5 km (3 miles) SE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Monday, October 27, 2025 at 2:05:46 AM (PDT) Monday, October 27, 2025 at 9:05:46 (UTC) |
| Distance from |
The Geysers, CA - 5 km (3 miles) SE (129 degrees) Cobb, CA - 8 km (5 miles) S (174 degrees) Middletown, CA - 9 km (5 miles) W (268 degrees) Hidden Valley Lake, CA - 15 km (9 miles) WSW (245 degrees) Lower Lake, CA - 20 km (12 miles) SSW (207 degrees) |
| Coordinates | 38 deg. 45.0 min. N (38.750N), 122 deg. 42.8 min. W (122.714W) |
| Depth | 1.21 km (0.80 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=12, Nph=12, Dmin=1.6 km, Rmss=0.03 sec, Erho=0.42 km, Erzz=0.330000013 km, Gp=81 degrees |
| Event ID# | nc75255166 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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