Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 9:29:09 PM (PDT) on Friday, September 26, 2025.
The magnitude 0.8 event occurred 15 km (9 miles) SSE of Ridgemark, CA.
The hypocentral depth is 6 km ( 4 miles).
Magnitude | 0.8 - duration magnitude (Md) |
Time | Friday, September 26, 2025 at 9:29:09 PM (PDT) Saturday, September 27, 2025 at 4:29:09 (UTC) |
Distance from |
Ridgemark, CA - 15 km (9 miles) SSE (166 degrees) Hollister, CA - 19 km (12 miles) SSE (160 degrees) Chualar, CA - 21 km (13 miles) NE (54 degrees) Gonzales, CA - 22 km (14 miles) NNE (28 degrees) San Juan Bautista, CA - 26 km (16 miles) SE (133 degrees) |
Coordinates | 36 deg. 41.0 min. N (36.684N), 121 deg. 19.5 min. W (121.325W) |
Depth | 6.25 km (3.90 miles) |
Quality | Excellent |
Location Quality Parameters | Nst=22, Nph=30, Dmin=3.3 km, Rmss=0.07 sec, Erho=0.22 km, Erzz=0.39 km, Gp=58 degrees |
Event ID# | nc75242492 |
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)