2025-09-28 21:31:07 (M4.2) Near the coast of Valparaiso, Chile -32.3 -72.0 (90be5)

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

Preliminary Report

Magnitude	4.2
Date-Time	Universal Time (UTC): 28 Sep 2025 21:31:08 Time near the Epicenter (1): 28 Sep 2025 17:31:08 Time in your area (1): 28 Sep 2025 13:31:08
Location	32.324S 71.959W
Depth	30 km
Distances	69.9 km (43.4 mi) WNW of La Ligua, Chile 84.8 km (52.6 mi) NNW of Valparaíso, Chile 86.3 km (53.5 mi) NW of Hacienda La Calera, Chile 86.6 km (53.7 mi) NNW of Viña del Mar, Chile 91.1 km (56.5 mi) NW of Quillota, Chile
Location Uncertainty	Horizontal: 4.4 km; Vertical 7.6 km
Parameters	Nph = 35; Dmin = 82.8 km; Rmss = 0.65 seconds; Gp = 185° Version =
Event ID	us 6000rdhs

(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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