2021-12-31 13:59:35 (M4.3) San Luis, Argentina -33.5 -65.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.3 Earthquake - San Luis, Argentina

Preliminary Report

Magnitude	4.3
Date-Time	31 Dec 2021 13:59:36 UTC 31 Dec 2021 11:59:36 near epicenter 31 Dec 2021 05:59:36 standard time in your timezone
Location	33.452S 65.775W
Depth	9 km
Distances	38.5 km (23.8 mi) NW of Villa Mercedes, Argentina 55.0 km (34.1 mi) ESE of San Luis, Argentina 58.3 km (36.1 mi) ESE of La Punta, Argentina 137.4 km (85.2 mi) WSW of R�o Cuarto, Argentina 142.1 km (88.1 mi) SSW of Merlo, Argentina
Location Uncertainty	Horizontal: 8.9 km; Vertical 5.7 km
Parameters	Nph = 41; Dmin = 345.5 km; Rmss = 0.48 seconds; Gp = 105° Version =
Event ID	us 7000g863

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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