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 11:44:40 PM (PDT) on Monday, September 29, 2025.
The magnitude 1.5 event occurred 7 km (5 miles) SW of The Geysers, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Monday, September 29, 2025 at 11:44:40 PM (PDT) Tuesday, September 30, 2025 at 6:44:40 (UTC) |
| Distance from |
The Geysers, CA - 7 km (5 miles) SW (218 degrees) Cobb, CA - 13 km (8 miles) SW (215 degrees) Healdsburg, CA - 14 km (9 miles) NNE (22 degrees) Middletown, CA - 17 km (11 miles) W (260 degrees) Windsor, CA - 20 km (12 miles) N (2 degrees) |
| Coordinates | 38 deg. 43.5 min. N (38.725N), 122 deg. 48.6 min. W (122.809W) |
| Depth | 4.45 km (2.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=24, Dmin=4.8 km, Rmss=0.05 sec, Erho=0.45 km, Erzz=0.670000017 km, Gp=95 degrees |
| Event ID# | nc75242811 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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