2025-12-16 02:11:49 (M4.0) Antofagasta, Chile -22.0 -68.5 (90be5)

M4.0 Earthquake - Antofagasta, Chile

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 16 Dec 2025 02:11:49 Time near the Epicenter (1): 15 Dec 2025 22:11:49 Time in your area (1): 15 Dec 2025 18:11:49
Location	22.005S 68.505W
Depth	117 km
Distances	66.0 km (41.0 mi) NE of Calama, Chile 175.0 km (108.5 mi) E of Tocopilla, Chile 233.7 km (144.9 mi) ENE of Mejillones, Chile 244.3 km (151.5 mi) SW of Uyuni, Bolivia 261.9 km (162.4 mi) SE of Iquique, Chile
Location Uncertainty	Horizontal: 4.8 km; Vertical 8.2 km
Parameters	Nph = 22; Dmin = 79.5 km; Rmss = 0.64 seconds; Gp = 85° Version =
Event ID	us 6000rv6n

(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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