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 5:03:28 PM (PST) on Friday, December 5, 2025.
The magnitude 2.2 event occurred 6 km (4 miles) SSW of Fortuna, CA.
The hypocentral depth is 12 km ( 7 miles).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Friday, December 5, 2025 at 5:03:28 PM (PST) Saturday, December 6, 2025 at 1:03:28 (UTC) |
| Distance from |
Fortuna, CA - 6 km (4 miles) SSW (207 degrees) Ferndale, CA - 7 km (4 miles) ESE (117 degrees) Hydesville, CA - 8 km (5 miles) W (270 degrees) Rio Dell, CA - 9 km (6 miles) NW (307 degrees) Humboldt Hill, CA - 20 km (12 miles) S (180 degrees) |
| Coordinates | 40 deg. 32.9 min. N (40.548N), 124 deg. 11.5 min. W (124.191W) |
| Depth | 11.64 km (7.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=26, Nph=26, Dmin=2.0 km, Rmss=0.14 sec, Erho=0.56 km, Erzz=0.409999996 km, Gp=143 degrees |
| Event ID# | nc75275036 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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