2026-02-28 23:05:29 (M4.3) San Juan, Argentina -31.1 -68.9 (90be5)

M4.3 Earthquake - San Juan, Argentina

Preliminary Report

Magnitude	4.3
Date-Time	Universal Time (UTC): 28 Feb 2026 23:05:30 Time near the Epicenter (1): 28 Feb 2026 20:05:30 Time in your area (1): 28 Feb 2026 15:05:30
Location	31.146S 68.926W
Depth	176 km
Distances	48.4 km (30.0 mi) NNW of Villa Basilio Nievas, Argentina 50.0 km (31.0 mi) NW of Albardón, Argentina 51.3 km (31.8 mi) NW of San Martín, Argentina 52.9 km (32.8 mi) NW of Chimbas, Argentina 57.1 km (35.4 mi) NW of San Juan, Argentina
Location Uncertainty	Horizontal: 9.9 km; Vertical 9.0 km
Parameters	Nph = 31; Dmin = 171.3 km; Rmss = 1.01 seconds; Gp = 147° Version =
Event ID	us 7000s14r

(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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