2025-03-28 18:54:18 (M4.1) La Rioja-San Juan border region, Argentina -30.8 -67.2 (90be5)

M4.1 Earthquake - La Rioja-San Juan border region, Argentina

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 28 Mar 2025 18:54:18 Time near the Epicenter (1): 28 Mar 2025 15:54:18 Time in your area (1): 28 Mar 2025 10:54:18
Location	30.755S 67.233W
Depth	11 km
Distances	26.2 km (16.2 mi) ESE of San Agustín de Valle Fértil, Argentina 98.5 km (61.1 mi) WSW of Chamical, Argentina 140.9 km (87.4 mi) NE of Caucete, Argentina 142.2 km (88.2 mi) ENE of San Martín, Argentina 151.6 km (94.0 mi) NE of San Juan, Argentina
Location Uncertainty	Horizontal: 8.5 km; Vertical 6.5 km
Parameters	Nph = 29; Dmin = 288.1 km; Rmss = 0.61 seconds; Gp = 167° Version =
Event ID	us 7000pnft

(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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