Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 12:37:41 PM (PDT) on Wednesday, July 23, 2025.
The magnitude 2.1 event occurred 40 km (25 miles) SW of Ferndale, CA.
The hypocentral depth is 14 km ( 8 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Wednesday, July 23, 2025 at 12:37:41 PM (PDT)
Wednesday, July 23, 2025 at 19:37:41 (UTC)
Distance from Ferndale, CA - 40 km (25 miles) SW (221 degrees)
Rio Dell, CA - 45 km (28 miles) WSW (241 degrees)
Fortuna, CA - 48 km (30 miles) SW (227 degrees)
Hydesville, CA - 49 km (30 miles) SW (236 degrees)
Humboldt Hill, CA - 57 km (36 miles) SW (215 degrees)
Coordinates 40 deg. 18.2 min. N (40.303N), 124 deg. 34.4 min. W (124.574W)
Depth 13.71 km (8.50 miles)
Quality Fair
Location Quality Parameters Nst=24, Nph=36, Dmin=19.7 km, Rmss=0.16 sec, Erho=0.71 km, Erzz=0.77 km, Gp=264 degrees
Event ID# nc75214077
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