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 2:45:27 AM (PDT) on Wednesday, September 3, 2025.
The magnitude 1.2 event occurred 3 km (2 miles) W of Cobb, CA.
The hypocentral depth is 1 km (0.40 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Wednesday, September 3, 2025 at 2:45:27 AM (PDT) Wednesday, September 3, 2025 at 9:45:27 (UTC) |
| Distance from |
Cobb, CA - 3 km (2 miles) W (280 degrees) The Geysers, CA - 6 km (3 miles) N (356 degrees) Middletown, CA - 15 km (9 miles) WNW (303 degrees) Lower Lake, CA - 16 km (10 miles) SW (235 degrees) Kelseyville, CA - 18 km (11 miles) SSE (158 degrees) |
| Coordinates | 38 deg. 49.6 min. N (38.827N), 122 deg. 45.6 min. W (122.760W) |
| Depth | 0.60 km (0.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=19, Nph=19, Dmin=0.9 km, Rmss=0.03 sec, Erho=0.25 km, Erzz=0.400000006 km, Gp=138 degrees |
| Event ID# | nc75232572 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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