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 3:12:22 PM (PST) on Saturday, December 6, 2025.
The magnitude 1.8 event occurred 36 km (22 miles) SSW of Ferndale, CA.
The hypocentral depth is 18 km (11 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Saturday, December 6, 2025 at 3:12:22 PM (PST) Saturday, December 6, 2025 at 23:12:22 (UTC) |
| Distance from |
Ferndale, CA - 36 km (22 miles) SSW (207 degrees) Rio Dell, CA - 38 km (23 miles) SW (232 degrees) Fortuna, CA - 42 km (26 miles) SW (217 degrees) Hydesville, CA - 42 km (26 miles) SW (227 degrees) Humboldt Hill, CA - 53 km (33 miles) SSW (205 degrees) |
| Coordinates | 40 deg. 17.5 min. N (40.292N), 124 deg. 27.4 min. W (124.457W) |
| Depth | 18.29 km (11.40 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=9.7 km, Rmss=0.03 sec, Erho=3.74 km, Erzz=2.17000008 km, Gp=295 degrees |
| Event ID# | nc75275421 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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