Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 9:55:00 AM (PDT) on Saturday, August 16, 2025.
The magnitude 2.9 event occurred 40 km (25 miles) SW of Ferndale, CA.
The hypocentral depth is 20 km (12 miles).


Magnitude 2.9 - local magnitude (Ml)
Time Saturday, August 16, 2025 at 9:55:00 AM (PDT)
Saturday, August 16, 2025 at 16:55:00 (UTC)
Distance from Ferndale, CA - 40 km (25 miles) SW (216 degrees)
Rio Dell, CA - 44 km (27 miles) WSW (237 degrees)
Hydesville, CA - 47 km (30 miles) SW (232 degrees)
Fortuna, CA - 48 km (30 miles) SW (223 degrees)
Humboldt Hill, CA - 57 km (36 miles) SSW (211 degrees)
Coordinates 40 deg. 17.1 min. N (40.285N), 124 deg. 32.4 min. W (124.540W)
Depth 20.03 km (12.40 miles)
Quality Poor
Location Quality Parameters Nst=132, Nph=135, Dmin=51.6 km, Rmss=0.69 sec, Erho=2.97 km, Erzz=6.251 km, Gp=223 degrees
Event ID# nc75224637
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