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 9:41:44 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) E (90 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Tuesday, September 9, 2025 at 9:41:44 AM (PDT) Tuesday, September 9, 2025 at 16:41:44 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) E (90 degrees) Cobb, CA - 5 km (3 miles) S (173 degrees) Middletown, CA - 9 km (6 miles) WNW (288 degrees) Hidden Valley Lake, CA - 14 km (9 miles) WSW (256 degrees) Lower Lake, CA - 17 km (11 miles) SSW (212 degrees) |
| Coordinates | 38 deg. 46.6 min. N (38.777N), 122 deg. 43.0 min. W (122.716W) |
| Depth | 1.80 km (1.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=1.8 km, Rmss=0.01 sec, Erho=0.43 km, Erzz=0.949999988 km, Gp=98 degrees |
| Event ID# | nc75235577 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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