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 9:41:32 AM (PDT) on Thursday, September 11, 2025.
The magnitude 1.7 event occurred 4 km (3 miles) SSW of Cottonwood, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Thursday, September 11, 2025 at 9:41:32 AM (PDT) Thursday, September 11, 2025 at 16:41:32 (UTC) |
| Distance from |
Cottonwood, CA - 4 km (3 miles) SSW (193 degrees) Esparto, CA - 8 km (5 miles) SSE (158 degrees) Winters, CA - 11 km (7 miles) N (355 degrees) Woodland, CA - 19 km (12 miles) WSW (251 degrees) Allendale, CA - 20 km (12 miles) N (350 degrees) |
| Coordinates | 38 deg. 37.4 min. N (38.623N), 121 deg. 58.9 min. W (121.981W) |
| Depth | 4.56 km (2.80 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=29.8 km, Rmss=0.02 sec, Erho=2.3 km, Erzz=8.14000034 km, Gp=225 degrees |
| Event ID# | nc75236457 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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