2025-09-11 18:23:17 (M4.0) Chile-Bolivia border region -21.6 -68.5 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.0 Earthquake - Chile-Bolivia border region

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 11 Sep 2025 18:23:18 Time near the Epicenter (1): 11 Sep 2025 14:23:18 Time in your area (1): 11 Sep 2025 10:23:18
Location	21.574S 68.549W
Depth	136 km
Distances	49.3 km (30.6 mi) SW of Ollagüe, Chile 105.1 km (65.2 mi) NNE of Calama, Chile 179.8 km (111.5 mi) ENE of Tocopilla, Chile 217.0 km (134.5 mi) SE of Alto Hospicio, Chile 224.6 km (139.3 mi) SE of Iquique, Chile
Location Uncertainty	Horizontal: 4.7 km; Vertical 8.3 km
Parameters	Nph = 25; Dmin = 75.7 km; Rmss = 0.61 seconds; Gp = 84° Version =
Event ID	us 7000qvis

(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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