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 8:55:30 PM (PDT) on Friday, August 22, 2025.
The magnitude 1.1 event occurred 7 km (4 miles) SW of The Geysers, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Friday, August 22, 2025 at 8:55:30 PM (PDT) Saturday, August 23, 2025 at 3:55:30 (UTC) |
| Distance from |
The Geysers, CA - 7 km (4 miles) SW (226 degrees) Cobb, CA - 13 km (8 miles) SW (219 degrees) Healdsburg, CA - 14 km (9 miles) NNE (19 degrees) Middletown, CA - 18 km (11 miles) W (263 degrees) Cloverdale, CA - 19 km (12 miles) ESE (115 degrees) |
| Coordinates | 38 deg. 43.9 min. N (38.732N), 122 deg. 49.0 min. W (122.816W) |
| Depth | 4.96 km (3.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=4.8 km, Rmss=0.02 sec, Erho=0.96 km, Erzz=2.25 km, Gp=213 degrees |
| Event ID# | nc75227542 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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