2025-09-04 13:52:13 (M4.4) northern Sumatra, Indonesia 1.5 99.4 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.4 Earthquake - northern Sumatra, Indonesia

Preliminary Report

Magnitude	4.4
Date-Time	Universal Time (UTC): 4 Sep 2025 13:52:13 Time near the Epicenter (1): 4 Sep 2025 20:52:13 Time in your area (1): 4 Sep 2025 05:52:13
Location	1.508N 99.382E
Depth	165 km
Distances	18.8 km (11.7 mi) NE of Padangsidempuan, Indonesia 71.6 km (44.4 mi) ESE of Sibolga, Indonesia 72.5 km (45.0 mi) SW of Bandar, Indonesia 82.5 km (51.1 mi) SW of Rantauprapat, Indonesia 242.9 km (150.6 mi) SSE of Medan, Indonesia
Location Uncertainty	Horizontal: 11.7 km; Vertical 8.3 km
Parameters	Nph = 33; Dmin = 140.6 km; Rmss = 0.48 seconds; Gp = 178° Version =
Event ID	us 7000qts0

(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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