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 1:04:51 PM (PDT) on Wednesday, September 17, 2025.
The magnitude 2.4 event occurred 56 km (35 miles) SW of Ferndale, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 2.4 - duration magnitude (Md)
Time Wednesday, September 17, 2025 at 1:04:51 PM (PDT)
Wednesday, September 17, 2025 at 20:04:51 (UTC)
Distance from Ferndale, CA - 56 km (35 miles) SW (232 degrees)
Rio Dell, CA - 63 km (39 miles) WSW (246 degrees)
Fortuna, CA - 65 km (40 miles) SW (235 degrees)
Hydesville, CA - 66 km (41 miles) WSW (242 degrees)
Humboldt Hill, CA - 72 km (45 miles) SW (225 degrees)
Coordinates 40 deg. 16.0 min. N (40.267N), 124 deg. 47.1 min. W (124.785W)
Depth 6.94 km (4.30 miles)
Quality Poor
Location Quality Parameters Nst=19, Nph=19, Dmin=37.7 km, Rmss=0.17 sec, Erho=6.11 km, Erzz=4.32000017 km, Gp=301 degrees
Event ID# nc75238907
Additional Information Map

For more information, see https://earthquake.usgs.gov

[ Index map || Big earthquake list || All earthquake list || Glossary of terms || Top page ]
[ Did you feel it? || ShakeMaps || Relative2Me ]
[ Data Sources ]

Special maps
Long Valley || Los Angeles || San Francisco

Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)