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 10:58:41 PM (PDT) on Sunday, September 21, 2025.
The magnitude 1.1 event occurred 5 km (3 miles) WNW of The Geysers, CA.
The hypocentral depth is 1 km (0.50 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Sunday, September 21, 2025 at 10:58:41 PM (PDT) Monday, September 22, 2025 at 5:58:41 (UTC) |
| Distance from |
The Geysers, CA - 5 km (3 miles) WNW (303 degrees) Cobb, CA - 8 km (5 miles) WSW (254 degrees) Cloverdale, CA - 18 km (11 miles) E (91 degrees) Middletown, CA - 18 km (11 miles) WNW (289 degrees) Kelseyville, CA - 20 km (12 miles) S (172 degrees) |
| Coordinates | 38 deg. 48.2 min. N (38.803N), 122 deg. 48.4 min. W (122.807W) |
| Depth | 0.75 km (0.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=1.2 km, Rmss=0.03 sec, Erho=0.2 km, Erzz=0.409999996 km, Gp=55 degrees |
| Event ID# | nc75240442 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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