2021-08-23 20:59:53 (M4.7) northern Sumatra, Indonesia 1.8 98.5 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.7 Earthquake - northern Sumatra, Indonesia

Preliminary Report

Magnitude	4.7
Date-Time	23 Aug 2021 20:59:54 UTC 24 Aug 2021 03:59:54 near epicenter 23 Aug 2021 12:59:54 standard time in your timezone
Location	1.845N 98.457E
Depth	82 km
Distances	37.9 km (23.5 mi) WNW of Sibolga, Indonesia 89.0 km (55.2 mi) ESE of Singkil, Indonesia 99.9 km (61.9 mi) SSW of Tomok Bolon, Indonesia 104.2 km (64.6 mi) WNW of Padangsidempuan, Indonesia 193.6 km (120.0 mi) S of Medan, Indonesia
Location Uncertainty	Horizontal: 8.7 km; Vertical 6.7 km
Parameters	Nph = 87; Dmin = 107.1 km; Rmss = 0.86 seconds; Gp = 115° Version =
Event ID	us 7000f2si

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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