2021-10-16 18:34:36 (M4.4) Off the coast of Bio-Bio, Chile -36.9 -74.1 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.4 Earthquake - Off the coast of Bio-Bio, Chile

Preliminary Report

Magnitude	4.4
Date-Time	16 Oct 2021 18:34:36 UTC 16 Oct 2021 14:34:36 near epicenter 16 Oct 2021 10:34:36 standard time in your timezone
Location	36.902S 74.121W
Depth	1 km
Distances	81.0 km (50.2 mi) WNW of Arauco, Chile 88.2 km (54.7 mi) WNW of Lota, Chile 88.6 km (54.9 mi) W of Coronel, Chile 88.7 km (55.0 mi) NNW of Lebu, Chile 95.9 km (59.4 mi) W of Concepci�n, Chile
Location Uncertainty	Horizontal: 4.5 km; Vertical 5.5 km
Parameters	Nph = 60; Dmin = 84.7 km; Rmss = 0.96 seconds; Gp = 117° Version =
Event ID	us 6000fv9h

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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