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 1:47:03 AM (PDT) on Friday, July 18, 2025.
The magnitude 1.8 event occurred 32 km (20 miles) SSW of Ferndale, CA.
The hypocentral depth is 29 km (18 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Friday, July 18, 2025 at 1:47:03 AM (PDT)
Friday, July 18, 2025 at 8:47:03 (UTC)
Distance from Ferndale, CA - 32 km (20 miles) SSW (200 degrees)
Rio Dell, CA - 33 km (20 miles) SW (228 degrees)
Hydesville, CA - 37 km (23 miles) SW (223 degrees)
Fortuna, CA - 39 km (24 miles) SSW (212 degrees)
Humboldt Hill, CA - 50 km (31 miles) SSW (200 degrees)
Coordinates 40 deg. 18.1 min. N (40.302N), 124 deg. 23.7 min. W (124.396W)
Depth 29.45 km (18.30 miles)
Quality Poor
Location Quality Parameters Nst=11, Nph=11, Dmin=9.7 km, Rmss=0.07 sec, Erho=3.03 km, Erzz=2.48000002 km, Gp=281 degrees
Event ID# nc75211572
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