2026-09-23 09:21:14 (M5.3) Catamarca-La Rioja region, Argentina -28.7 -67.3 (70fa9)

M5.3 Earthquake - Catamarca-La Rioja region, Argentina

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 23 Sep 2026 09:21:15 Time near the Epicenter (1): 23 Sep 2026 06:21:15 Time in your area (1): 23 Sep 2026 14:51:15
Location	28.730S 67.291W
Depth	121 km
Distances	51.5 km (31.9 mi) WSW of Arauco, Argentina 51.9 km (32.2 mi) NNE of Chilecito, Argentina 78.6 km (48.7 mi) SSE of Tinogasta, Argentina 86.8 km (53.8 mi) NNW of La Rioja, Argentina 150.1 km (93.1 mi) W of Catamarca, Argentina
Location Uncertainty	Horizontal: 7.5 km; Vertical 6.3 km
Parameters	Nph = 100; Dmin = 333.9 km; Rmss = 0.95 seconds; Gp = 29° Version =
Event ID	us 6000tx29

(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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