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 micro earthquake occurred at 5:06:04 PM (PST) on Sunday, December 21, 2025.
The magnitude 2.9 event occurred 11 km (7 miles) S of Ferndale, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 2.9 - local magnitude (Ml)
Time Sunday, December 21, 2025 at 5:06:04 PM (PST)
Monday, December 22, 2025 at 1:06:04 (UTC)
Distance from Ferndale, CA - 11 km (7 miles) S (174 degrees)
Rio Dell, CA - 12 km (8 miles) WSW (258 degrees)
Hydesville, CA - 15 km (9 miles) WSW (239 degrees)
Fortuna, CA - 16 km (10 miles) SSW (210 degrees)
Humboldt Hill, CA - 28 km (18 miles) S (191 degrees)
Coordinates 40 deg. 28.6 min. N (40.476N), 124 deg. 15.0 min. W (124.251W)
Depth 5.05 km (3.10 miles)
Quality Fair
Location Quality Parameters Nst=10, Nph=10, Dmin=12.8 km, Rmss=0.06 sec, Erho=1.26 km, Erzz=0.949999988 km, Gp=252 degrees
Event ID# nc75284481
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For more information, see https://earthquake.usgs.gov

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