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 9:29:09 AM (PDT) on Saturday, October 11, 2025.
The magnitude 1.8 event occurred 54 km (34 miles) SW of Ferndale, CA.
The hypocentral depth is 19 km (12 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Saturday, October 11, 2025 at 9:29:09 AM (PDT)
Saturday, October 11, 2025 at 16:29:09 (UTC)
Distance from Ferndale, CA - 54 km (34 miles) SW (231 degrees)
Rio Dell, CA - 61 km (38 miles) WSW (246 degrees)
Fortuna, CA - 63 km (39 miles) SW (235 degrees)
Hydesville, CA - 64 km (40 miles) WSW (242 degrees)
Humboldt Hill, CA - 70 km (44 miles) SW (224 degrees)
Coordinates 40 deg. 16.2 min. N (40.270N), 124 deg. 45.9 min. W (124.765W)
Depth 18.98 km (11.80 miles)
Quality Poor
Location Quality Parameters Nst=10, Nph=9, Dmin=36.0 km, Rmss=0.10 sec, Erho=8.74 km, Erzz=2.22000003 km, Gp=308 degrees
Event ID# nc75247871
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