2021-09-28 02:27:44 (M4.5) Chile-Argentina border region -23.8 -67.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.5 Earthquake - Chile-Argentina border region

Preliminary Report

Magnitude	4.5
Date-Time	28 Sep 2021 02:27:45 UTC 27 Sep 2021 22:27:45 near epicenter 27 Sep 2021 18:27:45 standard time in your timezone
Location	23.759S 67.828W
Depth	133 km
Distances	101.4 km (62.9 mi) SSE of San Pedro de Atacama, Chile 182.8 km (113.3 mi) SE of Calama, Chile 260.4 km (161.4 mi) WSW of Humahuaca, Argentina 262.0 km (162.4 mi) W of San Salvador de Jujuy, Argentina 262.1 km (162.5 mi) E of Antofagasta, Chile
Location Uncertainty	Horizontal: 7.0 km; Vertical 6.0 km
Parameters	Nph = 52; Dmin = 96.2 km; Rmss = 1.14 seconds; Gp = 78° Version =
Event ID	us 7000ff1f

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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