2026-01-31 23:28:09 (M4.4) Chile-Argentina border region -31.7 -70.1 (90be5)

M4.4 Earthquake - Chile-Argentina border region

Preliminary Report

Magnitude	4.4
Date-Time	Universal Time (UTC): 31 Jan 2026 23:28:10 Time near the Epicenter (1): 31 Jan 2026 20:28:10 Time in your area (1): 31 Jan 2026 15:28:10
Location	31.676S 70.091W
Depth	143 km
Distances	74.1 km (45.9 mi) WSW of Calingasta, Argentina 83.6 km (51.8 mi) E of Salamanca, Chile 102.5 km (63.5 mi) E of Illapel, Chile 133.3 km (82.6 mi) NNE of San Felipe, Chile 148.3 km (91.9 mi) W of San Juan, Argentina
Location Uncertainty	Horizontal: 6.4 km; Vertical 6.8 km
Parameters	Nph = 42; Dmin = 93.1 km; Rmss = 0.75 seconds; Gp = 89° Version =
Event ID	us 6000s5sr

(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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