2025-09-29 01:58:41 (M4.4) Antofagasta, Chile -23.0 -68.2 (90be5)

M4.4 Earthquake - Antofagasta, Chile

Preliminary Report

Magnitude	4.4
Date-Time	Universal Time (UTC): 29 Sep 2025 01:58:42 Time near the Epicenter (1): 28 Sep 2025 21:58:42 Time in your area (1): 28 Sep 2025 17:58:42
Location	23.039S 68.221W
Depth	158 km
Distances	14.3 km (8.9 mi) S of San Pedro de Atacama, Chile 96.8 km (60.0 mi) SE of Calama, Chile 228.2 km (141.5 mi) E of Mejillones, Chile 228.8 km (141.9 mi) ESE of Tocopilla, Chile 232.5 km (144.2 mi) ENE of Antofagasta, Chile
Location Uncertainty	Horizontal: 7.6 km; Vertical 3.3 km
Parameters	Nph = 22; Dmin = 10.6 km; Rmss = 0.83 seconds; Gp = 79° Version =
Event ID	us 6000rdii

(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
National Earthquake Information Center
U.S. Geological Survey


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