2023-05-20 07:16:15 (M4.1) Near the coast of Bio-Bio, Chile -36.5 -72.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

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

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 20 May 2023 07:16:15 Time near the Epicenter (1): 20 May 2023 03:16:15 Time in your area (1): 19 May 2023 23:16:15
Location	36.492S 72.819W
Depth	58 km
Distances	18.6 km (11.5 mi) NE of Tom�, Chile 31.8 km (19.7 mi) NNE of Penco, Chile 37.1 km (23.0 mi) NE of Talcahuano, Chile 42.5 km (26.4 mi) NNE of Concepci�n, Chile 51.6 km (32.0 mi) NNE of Chiguayante, Chile
Location Uncertainty	Horizontal: 9.6 km; Vertical 6.0 km
Parameters	Nph = 42; Dmin = 43.7 km; Rmss = 0.42 seconds; Gp = 140° Version =
Event ID	us 6000kdev

(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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