Mount Sinabung Erupts, Sends Ash 3,500 Metres High
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Mount Sinabung erupted Monday after several days of heightened activity, sending ash and smoke about 3,500 metres above its summit. Authorities raised the alert level to 3, while some residents left their homes voluntarily.

Mount Sinabung erupts in northern Sumatra, Indonesia, sending an ash and smoke column 3,500 metres above its summit.

Mount Sinabung erupted after days of heightened activity, sending a dense ash column high above its summit as some residents left their homes.

Mount Sinabung in northern Sumatra erupted Monday, sending a dense column of ash and smoke about 3,500 metres above its summit after several days of heightened volcanic activity, Indonesia’s Center for Volcanology and Geological Hazard Mitigation (PVMBG) said.

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The eruption began at about 10:17 a.m. local time (0317 GMT) and lasted roughly an hour. The ash column reached about 5,960 metres above sea level and was moving east and southeast, according to PVMBG, which operates under the Ministry of Energy and Mineral Resources.

Indonesia’s search and rescue agency, Basarnas, had not issued evacuation orders for areas near the volcano, but said some residents were leaving their homes voluntarily following the eruption.

Authorities had already closed a nearby camping area in Kuta Gugung village, in Naman Teran district, and restricted access to Lau Kawar Lake as a precaution after Sinabung’s activity intensified in recent days.

The authorities also raised the volcano’s alert level to 3 on a four-level scale.

VIDEO | El volcán Sinabung, uno de los más activos de Indonesia, erupcionó este lunes tras varios días de intensa actividad, expulsando una enorme columna de ceniza que se elevó a unos 3.500 metros sobre su cima. pic.twitter.com/jMnLymS8nS

— EFE Noticias (@EFEnoticias) August 31, 2026

Text Reads: Sinabung volcano, one of the most active in Indonesia, erupted this Monday after several days of intense activity, expelling a huge column of ash that rose to about 3,500 meters above its summit.

PVMBG warned of volcanic mudflows, known as lahars, which consist of water mixed with ash, mud, rocks and other volcanic material. Residents and tourists were advised to stay at least 3 kilometres from the summit and 4.5 kilometres from the volcano’s south-southeastern sector.

Previous Deadly Eruptions

Sinabung, which stands 2,460 metres high in northern Sumatra at the western end of Indonesia, has remained active since 2013.

Its intermittent eruptions killed 16 people in 2014 and seven in 2016. In recent years, its eruptions have not exceeded level 3 on the eight-level Volcanic Explosivity Index.

Indonesia lies along the Pacific Ring of Fire, a region of intense seismic activity with numerous active volcanoes and thousands of earthquakes recorded each year, most of them of moderate magnitude.

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