2025-09-07 00:11:47 (M3.5) Southern California 34.2 -117.8 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M3.5 Earthquake - Southern California

Preliminary Report

Magnitude	3.5
Date-Time	Universal Time (UTC): 7 Sep 2025 00:11:47 Time near the Epicenter (1): 6 Sep 2025 17:11:47 Time in your area (1): 6 Sep 2025 16:11:47
Location	34.192N 117.751W
Depth	7 km
Distances	9.6 km (6.0 mi) WNW of San Antonio Heights, California 10.2 km (6.3 mi) N of La Verne, California 10.7 km (6.7 mi) NNE of San Dimas, California 10.9 km (6.8 mi) NNW of Claremont, California 275.2 km (170.6 mi) NW of Mexicali, Mexico
Location Uncertainty	Horizontal: 0.3 km; Vertical 1.0 km
Parameters	Nph = 107; Dmin = 5.7 km; Rmss = 0.23 seconds; Gp = 19° Version = 2
Event ID	ci 41285224

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
CISN Southern California Management Center
Caltech Seismological Laboratory
U.S. Geological Survey

http://www.cisn.org/scmc.html
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