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 3:41:51 PM (PDT) on Monday, September 21, 2026.
The magnitude 2.5 event occurred 38 km (24 miles) SW of Ferndale, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 2.5 - duration magnitude (Md)
Time Monday, September 21, 2026 at 3:41:51 PM (PDT)
Monday, September 21, 2026 at 22:41:51 (UTC)
Distance from Ferndale, CA - 38 km (24 miles) SW (217 degrees)
Rio Dell, CA - 42 km (26 miles) WSW (239 degrees)
Fortuna, CA - 46 km (28 miles) SW (224 degrees)
Hydesville, CA - 46 km (29 miles) SW (234 degrees)
Humboldt Hill, CA - 55 km (34 miles) SSW (212 degrees)
Coordinates 40 deg. 18.2 min. N (40.304N), 124 deg. 32.2 min. W (124.536W)
Depth 10.46 km (6.50 miles)
Quality Fair
Location Quality Parameters Nst=22, Nph=20, Dmin=19.3 km, Rmss=0.17 sec, Erho=2.35 km, Erzz=0.879999995 km, Gp=274 degrees
Event ID# nc75439702
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For more information, see https://earthquake.usgs.gov

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