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 5:23:05 PM (PDT) on Saturday, September 20, 2025.
The magnitude 1.7 event occurred 19 km (12 miles) W of Laytonville, CA.
The hypocentral depth is -1 km (-0.30 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Saturday, September 20, 2025 at 5:23:05 PM (PDT) Sunday, September 21, 2025 at 0:23:05 (UTC) |
| Distance from |
Laytonville, CA - 19 km (12 miles) W (274 degrees) Fort Bragg, CA - 30 km (19 miles) NNE (16 degrees) Brooktrails, CA - 39 km (25 miles) NW (316 degrees) Covelo, CA - 40 km (25 miles) WSW (255 degrees) Willits, CA - 44 km (27 miles) NW (317 degrees) |
| Coordinates | 39 deg. 42.0 min. N (39.700N), 123 deg. 42.2 min. W (123.704W) |
| Depth | -0.52 km (-0.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=33, Nph=41, Dmin=10.4 km, Rmss=0.16 sec, Erho=0.27 km, Erzz=0.62 km, Gp=117 degrees |
| Event ID# | nc75240052 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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