Padang, Sept. 21 -- Mount Marapi, located in Agam and Tanah Datar Districts in West Sumatra, erupted at 1:28 p.m. local time on Sunday, sending ash roughly 1,000 meters above the summit.

The ash plume drifted southwest, toward Padang Panjang City. Officials from the Marapi Volcano Observation Post said they await assessments by the Volcanic Ash Advisory Centre Darwin and ASHTAM to determine how far ash may spread.

The ash column appeared gray and thick. Seismic instruments recorded a maximum amplitude of 30.4 millimeters, with the eruption lasting about 38 seconds.

Marapi, standing at 2,891 meters above sea level, was still active when the report was filed.

A resident in Agam, Noviardi, said he was startled by a loud explosion from th...