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 8:52:33 PM (PDT) on Tuesday, September 23, 2025.
The magnitude 0.8 event occurred 2 km (1 miles) WSW of The Geysers, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Tuesday, September 23, 2025 at 8:52:33 PM (PDT) Wednesday, September 24, 2025 at 3:52:33 (UTC) |
| Distance from |
The Geysers, CA - 2 km (1 miles) WSW (257 degrees) Cobb, CA - 7 km (4 miles) SW (220 degrees) Middletown, CA - 14 km (9 miles) W (280 degrees) Hidden Valley Lake, CA - 19 km (12 miles) W (259 degrees) Healdsburg, CA - 20 km (12 miles) NNE (24 degrees) |
| Coordinates | 38 deg. 46.4 min. N (38.774N), 122 deg. 46.5 min. W (122.775W) |
| Depth | 4.21 km (2.60 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=0.9 km, Rmss=0.17 sec, Erho=0.99 km, Erzz=1.15999997 km, Gp=137 degrees |
| Event ID# | nc75241207 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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