2025-07-16 12:03:10 (M4.1) Near the coast of Bio-Bio, Chile -37.9 -73.7 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.1 Earthquake - Near the coast of Bio-Bio, Chile

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 16 Jul 2025 12:03:11 Time near the Epicenter (1): 16 Jul 2025 08:03:11 Time in your area (1): 16 Jul 2025 04:03:11
Location	37.874S 73.706W
Depth	14 km
Distances	28.4 km (17.6 mi) WSW of Cañete, Chile 29.8 km (18.5 mi) S of Lebu, Chile 54.2 km (33.6 mi) SW of Curanilahue, Chile 77.6 km (48.1 mi) SSW of Arauco, Chile 129.9 km (80.5 mi) SSW of Concepción, Chile
Location Uncertainty	Horizontal: 8.1 km; Vertical 5.1 km
Parameters	Nph = 26; Dmin = 224.1 km; Rmss = 0.81 seconds; Gp = 148° Version =
Event ID	us 7000qcz4

(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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