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 2:38:49 AM (PST) on Tuesday, December 23, 2025.
The magnitude 2.3 event occurred 12 km (7 miles) WSW of Rio Dell, CA.
The hypocentral depth is 19 km (12 miles).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Tuesday, December 23, 2025 at 2:38:49 AM (PST) Tuesday, December 23, 2025 at 10:38:49 (UTC) |
| Distance from |
Rio Dell, CA - 12 km (7 miles) WSW (249 degrees) Ferndale, CA - 13 km (8 miles) S (169 degrees) Hydesville, CA - 15 km (9 miles) SW (231 degrees) Fortuna, CA - 16 km (10 miles) SSW (204 degrees) Humboldt Hill, CA - 30 km (18 miles) S (187 degrees) |
| Coordinates | 40 deg. 27.8 min. N (40.463N), 124 deg. 14.1 min. W (124.235W) |
| Depth | 19.02 km (11.80 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=23, Nph=21, Dmin=10.9 km, Rmss=0.08 sec, Erho=0.61 km, Erzz=0.280000001 km, Gp=191 degrees |
| Event ID# | nc75285221 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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