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 2:30:18 PM (PDT) on Sunday, September 21, 2025.
The magnitude 1.2 event occurred 1 km (1 miles) S of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Sunday, September 21, 2025 at 2:30:18 PM (PDT) Sunday, September 21, 2025 at 21:30:18 (UTC) |
| Distance from |
The Geysers, CA - 1 km (1 miles) S (180 degrees) Cobb, CA - 7 km (4 miles) SSW (206 degrees) Middletown, CA - 12 km (8 miles) W (278 degrees) Hidden Valley Lake, CA - 18 km (11 miles) WSW (255 degrees) Healdsburg, CA - 20 km (12 miles) NNE (29 degrees) |
| Coordinates | 38 deg. 46.1 min. N (38.768N), 122 deg. 45.4 min. W (122.757W) |
| Depth | 1.46 km (0.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=0.9 km, Rmss=0.03 sec, Erho=0.31 km, Erzz=0.49000001 km, Gp=125 degrees |
| Event ID# | nc75240347 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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