2025-07-21 09:53:22 (M4.3) Antofagasta, Chile -23.0 -69.3 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.3 Earthquake - Antofagasta, Chile

Preliminary Report

Magnitude	4.3
Date-Time	Universal Time (UTC): 21 Jul 2025 09:53:22 Time near the Epicenter (1): 21 Jul 2025 05:53:22 Time in your area (1): 21 Jul 2025 01:53:22
Location	23.000S 69.250W
Depth	111 km
Distances	68.9 km (42.7 mi) SSW of Calama, Chile 123.1 km (76.3 mi) E of Mejillones, Chile 137.6 km (85.3 mi) ENE of Antofagasta, Chile 140.0 km (86.8 mi) SE of Tocopilla, Chile 294.7 km (182.7 mi) NNE of Taltal, Chile
Location Uncertainty	Horizontal: 6.1 km; Vertical 5.8 km
Parameters	Nph = 26; Dmin = 110.0 km; Rmss = 0.53 seconds; Gp = 87° Version =
Event ID	us 7000qe8i

(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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