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 3:09:12 AM (PDT) on Sunday, July 20, 2025.
The magnitude 1.8 event occurred 22 km (14 miles) NE (51 degrees) of Greenfield, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Sunday, July 20, 2025 at 3:09:12 AM (PDT)
Sunday, July 20, 2025 at 10:09:12 (UTC)
Distance from Greenfield, CA - 22 km (14 miles) NE (51 degrees)
Soledad, CA - 24 km (15 miles) E (84 degrees)
King City, CA - 27 km (17 miles) NNE (14 degrees)
Gonzales, CA - 35 km (22 miles) E (101 degrees)
Chualar, CA - 44 km (27 miles) ESE (108 degrees)
Coordinates 36 deg. 26.7 min. N (36.446N), 121 deg. 3.3 min. W (121.055W)
Depth 6.14 km (3.80 miles)
Quality Excellent
Location Quality Parameters Nst=29, Nph=28, Dmin=1.1 km, Rmss=0.14 sec, Erho=0.3 km, Erzz=0.74000001 km, Gp=74 degrees
Event ID# nc75212412
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)