Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #11: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 12:40:59 PM (PDT) on Tuesday, September 9, 2025.
The magnitude 3.9 event occurred 62 km (38 miles) WSW of Ferndale, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 3.9 - moment magnitude (Mw) |
| Time | Tuesday, September 9, 2025 at 12:40:59 PM (PDT) Tuesday, September 9, 2025 at 19:40:59 (UTC) |
| Distance from |
Ferndale, CA - 62 km (38 miles) WSW (244 degrees) Fortuna, CA - 71 km (44 miles) WSW (245 degrees) Rio Dell, CA - 71 km (44 miles) WSW (255 degrees) Hydesville, CA - 73 km (46 miles) WSW (251 degrees) Humboldt Hill, CA - 76 km (47 miles) SW (234 degrees) |
| Coordinates | 40 deg. 19.8 min. N (40.329N), 124 deg. 54.9 min. W (124.915W) |
| Depth | 7.16 km (4.40 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=64, Nph=67, Dmin=48.9 km, Rmss=0.32 sec, Erho=1.99 km, Erzz=3.61999989 km, Gp=261 degrees |
| Event ID# | nc75235672 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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