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 0:28:33 AM (PST) on Saturday, December 20, 2025.
The magnitude 2.9 event occurred 44 km (27 miles) SW of Ferndale, CA.
The hypocentral depth is 17 km (11 miles).
| Magnitude | 2.9 - duration magnitude (Md) |
| Time | Saturday, December 20, 2025 at 0:28:33 AM (PST) Saturday, December 20, 2025 at 8:28:33 (UTC) |
| Distance from |
Ferndale, CA - 44 km (27 miles) SW (215 degrees) Rio Dell, CA - 47 km (29 miles) SW (235 degrees) Hydesville, CA - 51 km (32 miles) SW (231 degrees) Fortuna, CA - 52 km (32 miles) SW (222 degrees) Humboldt Hill, CA - 61 km (38 miles) SSW (211 degrees) |
| Coordinates | 40 deg. 15.2 min. N (40.254N), 124 deg. 33.9 min. W (124.564W) |
| Depth | 17.00 km (10.60 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=13, Nph=12, Dmin=29.3 km, Rmss=0.07 sec, Erho=3.23 km, Erzz=1.13999999 km, Gp=284 degrees |
| Event ID# | nc75283236 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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