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 5:19:25 AM (PDT) on Tuesday, October 21, 2025.
The magnitude 2.6 event occurred 4 km (3 miles) SE of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 2.6 - duration magnitude (Md) |
| Time | Tuesday, October 21, 2025 at 5:19:25 AM (PDT) Tuesday, October 21, 2025 at 12:19:25 (UTC) |
| Distance from |
The Geysers, CA - 4 km (3 miles) SE (133 degrees) Cobb, CA - 8 km (5 miles) S (179 degrees) Middletown, CA - 9 km (6 miles) W (270 degrees) Hidden Valley Lake, CA - 15 km (10 miles) WSW (247 degrees) Lower Lake, CA - 20 km (12 miles) SSW (209 degrees) |
| Coordinates | 38 deg. 45.1 min. N (38.752N), 122 deg. 43.3 min. W (122.722W) |
| Depth | 2.72 km (1.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=70, Nph=63, Dmin=1.0 km, Rmss=0.08 sec, Erho=0.14 km, Erzz=0.280000001 km, Gp=24 degrees |
| Event ID# | nc75252306 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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