2021-09-20 13:58:30 (M4.4) Off the coast of Bio-Bio, Chile -36.8 -74.1 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

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

Preliminary Report

Magnitude	4.4
Date-Time	20 Sep 2021 13:58:30 UTC 20 Sep 2021 09:58:30 near epicenter 20 Sep 2021 05:58:30 standard time in your timezone
Location	36.770S 74.058W
Depth	11 km
Distances	84.2 km (52.2 mi) W of Talcahuano, Chile 84.4 km (52.3 mi) NW of Arauco, Chile 86.8 km (53.8 mi) WNW of Coronel, Chile 87.7 km (54.4 mi) WNW of Lota, Chile 90.2 km (55.9 mi) W of Concepci�n, Chile
Location Uncertainty	Horizontal: 5.3 km; Vertical 6.3 km
Parameters	Nph = 29; Dmin = 77.4 km; Rmss = 0.51 seconds; Gp = 176° Version =
Event ID	us 7000fcvl

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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