Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: 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 minor earthquake occurred at 4:34:20 PM (PST) on Friday, December 5, 2025.
The magnitude 3.4 event occurred 6 km (4 miles) SSW of Fortuna, CA.
The hypocentral depth is 11 km ( 7 miles).
| Magnitude | 3.4 - local magnitude (Ml) |
| Time | Friday, December 5, 2025 at 4:34:20 PM (PST) Saturday, December 6, 2025 at 0:34:20 (UTC) |
| Distance from |
Fortuna, CA - 6 km (4 miles) SSW (207 degrees) Ferndale, CA - 7 km (4 miles) ESE (115 degrees) Hydesville, CA - 8 km (5 miles) W (272 degrees) Rio Dell, CA - 9 km (6 miles) NW (309 degrees) Humboldt Hill, CA - 20 km (12 miles) S (180 degrees) |
| Coordinates | 40 deg. 33.0 min. N (40.550N), 124 deg. 11.4 min. W (124.190W) |
| Depth | 11.36 km (7.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=41, Nph=37, Dmin=2.2 km, Rmss=0.14 sec, Erho=0.35 km, Erzz=0.289999992 km, Gp=137 degrees |
| Event ID# | nc75275021 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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