2026-08-21 22:26:03 (M4.7) Chile-Argentina border region -25.6 -68.9 (90be5)

M4.7 Earthquake - Chile-Argentina border region

Preliminary Report

Magnitude	4.7
Date-Time	Universal Time (UTC): 21 Aug 2026 22:26:03 Time near the Epicenter (1): 21 Aug 2026 18:26:03 Time in your area (1): 21 Aug 2026 14:26:03
Location	25.567S 68.882W
Depth	102 km
Distances	148.0 km (91.7 mi) NE of Diego de Almagro, Chile 162.2 km (100.6 mi) E of Taltal, Chile 246.2 km (152.7 mi) NE of Copiapó, Chile 261.7 km (162.3 mi) SE of Antofagasta, Chile 296.5 km (183.8 mi) WNW of Cafayate, Argentina
Location Uncertainty	Horizontal: 6.7 km; Vertical 6.6 km
Parameters	Nph = 63; Dmin = 84.2 km; Rmss = 1.29 seconds; Gp = 52° Version =
Event ID	us 6000tmnz

(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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