2025-07-31 15:34:38 (M3.0) Southern California 34.1 -117.4 (90be5)

M3.0 Earthquake - Southern California

Preliminary Report

Magnitude	3.0
Date-Time	Universal Time (UTC): 31 Jul 2025 15:34:38 Time near the Epicenter (1): 31 Jul 2025 08:34:38 Time in your area (1): 31 Jul 2025 07:34:38
Location	34.143N 117.418W
Depth	5 km
Distances	5.9 km (3.6 mi) NNE of Fontana, California 6.0 km (3.7 mi) NW of Rialto, California 7.0 km (4.3 mi) W of Muscoy, California 8.4 km (5.2 mi) NNW of Bloomington, California 248.3 km (153.9 mi) NW of Mexicali, Mexico
Location Uncertainty	Horizontal: 0.2 km; Vertical 0.5 km
Parameters	Nph = 143; Dmin = 5.2 km; Rmss = 0.20 seconds; Gp = 16° Version = 2
Event ID	ci 41249424

(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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