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 4:34:46 PM (PDT) on Friday, October 17, 2025.
The magnitude 1.3 event occurred 1 km (1 miles) NW of Redwood Valley, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.3 - duration magnitude (Md)
Time Friday, October 17, 2025 at 4:34:46 PM (PDT)
Friday, October 17, 2025 at 23:34:46 (UTC)
Distance from Redwood Valley, CA - 1 km (1 miles) NW (319 degrees)
Ukiah, CA - 14 km (9 miles) N (358 degrees)
Talmage, CA - 16 km (10 miles) NNW (346 degrees)
Willits, CA - 19 km (12 miles) SE (141 degrees)
Brooktrails, CA - 24 km (15 miles) SE (142 degrees)
Coordinates 39 deg. 16.4 min. N (39.274N), 123 deg. 12.8 min. W (123.214W)
Depth 5.12 km (3.20 miles)
Quality Fair
Location Quality Parameters Nst=8, Nph=8, Dmin=10.7 km, Rmss=0.02 sec, Erho=0.72 km, Erzz=2.50999999 km, Gp=123 degrees
Event ID# nc75250791
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)