2023-09-28 06:57:12 (M4.2) Near the coast of Antofagasta, Chile -23.8 -70.2 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.2 Earthquake - Near the coast of Antofagasta, Chile

Preliminary Report

Magnitude	4.2
Date-Time	Universal Time (UTC): 28 Sep 2023 06:57:12 Time near the Epicenter (1): 28 Sep 2023 02:57:12 Time in your area (1): 27 Sep 2023 22:57:12
Location	23.783S 70.246W
Depth	67 km
Distances	21.0 km (13.0 mi) SE of Antofagasta, Chile 78.4 km (48.6 mi) SSE of Mejillones, Chile 181.5 km (112.6 mi) N of Taltal, Chile 187.3 km (116.1 mi) S of Tocopilla, Chile 199.8 km (123.9 mi) SW of Calama, Chile
Location Uncertainty	Horizontal: 5.0 km; Vertical 9.3 km
Parameters	Nph = 18; Dmin = 94.7 km; Rmss = 0.47 seconds; Gp = 165° Version =
Event ID	us 6000lbbg

(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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