Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 3:06:25 PM (PDT) on Saturday, August 16, 2025.
The magnitude 1.8 event occurred 50 km (31 miles) WSW of Ferndale, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Saturday, August 16, 2025 at 3:06:25 PM (PDT)
Saturday, August 16, 2025 at 22:06:25 (UTC)
Distance from Ferndale, CA - 50 km (31 miles) WSW (242 degrees)
Fortuna, CA - 59 km (37 miles) WSW (244 degrees)
Rio Dell, CA - 59 km (37 miles) WSW (255 degrees)
Hydesville, CA - 62 km (38 miles) WSW (251 degrees)
Humboldt Hill, CA - 64 km (40 miles) SW (231 degrees)
Coordinates 40 deg. 21.7 min. N (40.361N), 124 deg. 47.0 min. W (124.784W)
Depth 6.83 km (4.20 miles)
Quality Fair
Location Quality Parameters Nst=39, Nph=44, Dmin=38.4 km, Rmss=0.18 sec, Erho=0.59 km, Erzz=0.79 km, Gp=261 degrees
Event ID# nc75224762
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For more information, see https://earthquake.usgs.gov

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