Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A light earthquake occurred at 11:50:29 PM (PDT) on Saturday, July 26, 2025.
The magnitude 4.2 event occurred 92 km (57 miles) WSW of Ferndale, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 4.2 - moment magnitude (Mw)
Time Saturday, July 26, 2025 at 11:50:29 PM (PDT)
Sunday, July 27, 2025 at 6:50:29 (UTC)
Distance from Ferndale, CA - 92 km (57 miles) WSW (258 degrees)
Fortuna, CA - 102 km (63 miles) WSW (258 degrees)
Humboldt Hill, CA - 103 km (64 miles) WSW (250 degrees)
Rio Dell, CA - 104 km (65 miles) W (265 degrees)
Bayview, CA - 105 km (65 miles) WSW (247 degrees)
Coordinates 40 deg. 24.2 min. N (40.403N), 125 deg. 20.0 min. W (125.333W)
Depth 10.00 km (6.20 miles)
Quality Poor
Location Quality Parameters Nst=135, Nph=144, Dmin=84.5 km, Rmss=0.34 sec, Erho=1.08 km, Erzz=31.61 km, Gp=239 degrees
Event ID# nc75215702
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)