Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 0:24:59 AM (PDT) on Monday, August 4, 2025.
The magnitude 0.5 event occurred 4 km (2 miles) S of Julian, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Monday, August 4, 2025 at 0:24:59 AM (PDT)
Monday, August 4, 2025 at 7:24:59 (UTC)
Distance from Julian, CA - 4 km (2 miles) S (178 degrees)
San Diego Country Estates, CA - 18 km (11 miles) ENE (76 degrees)
Ramona, CA - 25 km (15 miles) E (89 degrees)
Pine Valley, CA - 26 km (16 miles) NNW (345 degrees)
Warner Springs, CA - 27 km (17 miles) S (173 degrees)
Coordinates 33 deg. 2.7 min. N (33.044N), 116 deg. 36.0 min. W (116.601W)
Depth 13.29 km (8.30 miles)
Quality Good
Location Quality Parameters Nst=33, Nph=56, Dmin=4.1 km, Rmss=0.16 sec, Erho=0.22 km, Erzz=0.41 km, Gp=72 degrees
Event ID# ci41252496
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)