Indonesia evacuates stranded climbers after Semeru volcano erupts


People walking on ground covered in volcanic ash after a pyroclastic flow during Wednesday's eruption of Mount Semeru in Supiturang village, Lumajang, East Java on Nov 20, 2025. - AFP

JAKARTA: Indonesian authorities evacuated more than 900 people and were facilitating the safe return on Thursday (Nov 20) of 170 climbers stranded after the eruption of its Semeru volcano, one of the country's tallest mountains.

The alert level was maintained at its highest after Semeru on Java island erupted 10 times on Wednesday, emitting massive plumes of ash and sending lava and rocks as far as 13km (8.08 miles) down its slopes, officials said.

The climbers were stuck overnight at a lakeside camping area at the foot of the volcano about 6.4km from the crater but were now being helped to safety, said Septi Wardhani, an official at Semeru national park.

"All climbers with their guides are safe," Wardhani told Reuters.

"The situation is under control,"

Footage from Indonesia's volcanology agency showed a huge cloud of hot ash billowing from the crater and blanketing the slopes of the volcano. Its last major eruption was in December 2021, when at least 51 people were killed and nearby villages were blanketed in ash.

The 3,676m (2.28 mile) high Mount Semeru is one of about 130 active volcanoes in Indonesia, which straddles the "Pacific Ring of Fire", a highly seismically active zone, where different plates on the earth’s crust meet and create a large number of earthquakes and volcanoes.

East Java's rescue agency deployed dozens of personnel to assist the evacuation, with 956 people living close to the volcano already moved to schools, mosques and government buildings, said agency official Prahista Dian.

"We've also deployed personnel to search for whether there are still residents trapped or not," he added. - Reuters

Follow us on our official WhatsApp channel for breaking news alerts and key updates!
Indonesia , volcano , Mt Semeru , eruption

Next In Aseanplus News

China vows effective measures to deter any sabotaging moves in the South China Sea
New Zealand's annual imports from South-East Asia are up by 15 per cent
World Insights: Leaders' summit puts security, regional cooperation, and finance at heart of upcoming COP17
Indonesia's Rayhan Latief is set to arrive at the Asia-Pacific Amateur Championship in a confident mood
Detained Suu Kyi receives UK royal package, says Myanmar govt
More calm now at Hormuz Strait as oil slips from five-month high with Hormuz transits in focus
Vietnam's VinFast reports US$1.2bil Q2 continuing loss despite sales jump
Iran's Araqchi blames the US for Strait of Hormuz tensions but calls for diplomacy
Socioeconomic inequality also a challenge to national unity, says deputy minister
Six men detained to assist probe into abuse of Indonesian woman

Air Pollutant Index

Note: API is calculated based on 24hr running average of the most dominant parameter.

Highest API Readings

    Select State and Location to view the latest API reading

    Others Also Read