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 7:53:07 AM (PDT) on Sunday, October 19, 2025.
The magnitude 1.8 event occurred 6 km (4 miles) SSW of Fortuna, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Sunday, October 19, 2025 at 7:53:07 AM (PDT)
Sunday, October 19, 2025 at 14:53:07 (UTC)
Distance from Fortuna, CA - 6 km (4 miles) SSW (199 degrees)
Hydesville, CA - 7 km (4 miles) W (268 degrees)
Ferndale, CA - 8 km (5 miles) ESE (117 degrees)
Rio Dell, CA - 8 km (5 miles) NW (308 degrees)
Humboldt Hill, CA - 20 km (13 miles) S (178 degrees)
Coordinates 40 deg. 32.7 min. N (40.545N), 124 deg. 10.9 min. W (124.182W)
Depth 11.47 km (7.10 miles)
Quality Good
Location Quality Parameters Nst=19, Nph=19, Dmin=2.6 km, Rmss=0.13 sec, Erho=0.67 km, Erzz=0.569999993 km, Gp=129 degrees
Event ID# nc75251666
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For more information, see https://earthquake.usgs.gov

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