Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:27:44 AM (PDT) on Sunday, September 21, 2025.
The magnitude 1.3 event occurred 3 km (2 miles) SSW of Redwood Valley, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Sunday, September 21, 2025 at 7:27:44 AM (PDT) Sunday, September 21, 2025 at 14:27:44 (UTC) |
| Distance from |
Redwood Valley, CA - 3 km (2 miles) SSW (213 degrees) Ukiah, CA - 11 km (7 miles) N (354 degrees) Talmage, CA - 13 km (8 miles) NNW (339 degrees) Willits, CA - 22 km (13 miles) SSE (148 degrees) Brooktrails, CA - 26 km (16 miles) SSE (148 degrees) |
| Coordinates | 39 deg. 14.6 min. N (39.244N), 123 deg. 13.3 min. W (123.222W) |
| Depth | 2.88 km (1.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=19, Nph=24, Dmin=7.1 km, Rmss=0.07 sec, Erho=0.17 km, Erzz=1.24 km, Gp=42 degrees |
| Event ID# | nc75240257 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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