2026-03-01 22:07:42 (M4.5) Chile-Argentina border region -31.1 -70.2 (90be5)

M4.5 Earthquake - Chile-Argentina border region

Preliminary Report

Magnitude	4.5
Date-Time	Universal Time (UTC): 1 Mar 2026 22:07:42 Time near the Epicenter (1): 1 Mar 2026 19:07:42 Time in your area (1): 1 Mar 2026 14:07:42
Location	31.113S 70.204W
Depth	127 km
Distances	78.6 km (48.7 mi) WNW of Calingasta, Argentina 85.7 km (53.1 mi) ESE of Monte Patria, Chile 103.3 km (64.0 mi) NE of Salamanca, Chile 108.4 km (67.2 mi) ENE of Illapel, Chile 165.6 km (102.6 mi) WNW of San Juan, Argentina
Location Uncertainty	Horizontal: 5.0 km; Vertical 4.9 km
Parameters	Nph = 44; Dmin = 55.4 km; Rmss = 0.64 seconds; Gp = 56° Version =
Event ID	us 7000s1bq

(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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