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 11:23:17 AM (PDT) on Saturday, September 13, 2025.
The magnitude 2.1 event occurred 18 km (11 miles) WSW of Ferndale, CA.
The hypocentral depth is 16 km (10 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Saturday, September 13, 2025 at 11:23:17 AM (PDT)
Saturday, September 13, 2025 at 18:23:17 (UTC)
Distance from Ferndale, CA - 18 km (11 miles) WSW (245 degrees)
Fortuna, CA - 27 km (17 miles) WSW (248 degrees)
Rio Dell, CA - 29 km (18 miles) W (272 degrees)
Hydesville, CA - 31 km (19 miles) W (262 degrees)
Humboldt Hill, CA - 33 km (20 miles) SW (223 degrees)
Coordinates 40 deg. 30.5 min. N (40.508N), 124 deg. 27.3 min. W (124.455W)
Depth 16.23 km (10.10 miles)
Quality Poor
Location Quality Parameters Nst=16, Nph=16, Dmin=19.6 km, Rmss=0.07 sec, Erho=2.63 km, Erzz=0.660000026 km, Gp=297 degrees
Event ID# nc75237462
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