🔴INDONESIA 🇮🇩| 🌋 Mount Anak Krakatau erupted on Sunday, September 6, sending around volcanic ash plumes up to 50,000 feet. This eruption led to the temporary suspension of flight operations at Jakarta's Soekarno-Hatta International Airport. More than 200 flights were diverted. pic.twitter.com/kk9fx5Yb9X

— Nanana365 (@nanana365media) September 6, 2026

A further eruption was recorded on Sunday night at 8:23pm, according to the volcano monitoring agency’s website. No deaths or injuries have been reported, and no evacuation order has been issued, though people have been told to stay at least 3 kilometres from the crater.

Which airports are closed, and for how long?

Airspace was shut around Jakarta’s Soekarno-Hatta and Halim Perdanakusuma airports, along with six others, including Radin Inten II Airport in Lampung. All eight were ordered closed until 8:59am on Monday, though Jakarta’s main airport operator later said on Instagram that Soekarno-Hatta would stay shut until 6pm local time. Services at Bali’s main airport and at Medan were also disrupted.

Breaking : Fresh footage of Mount Anak Krakatau shared by a local resident shows its current volcanic condition in Indonesia pic.twitter.com/GD96dFydd2

— World Updates (@Updatesofwworld) September 6, 2026

Indonesia’s transport minister, Dudy Purwagandhi, said the situation was still changing. “We cannot ascertain when this will end due to the dynamic weather,” he said, Reuters reports.

How much ash has the volcano sent into the sky?

Two ash clouds have been tracked by satellite. One reached about 20,000 feet and drifted over Jakarta, Banten and West Java. A second, larger cloud reached around 50,000 feet and spread over Banten, Lampung and Bengkulu provinces, the southern Sunda Strait, and part of the Indian Ocean west of Sumatra, weather agency BMKG said.

Lana Saria, head of Indonesia’s Geological Agency, said activity at the volcano has picked up since July, with Sunday’s eruption the strongest in that period. She said the pattern points to a steady supply of magma and gas below the volcano, though officials cannot say whether a bigger eruption will follow. The monitoring agency has also warned that further eruptions remain likely in the coming period.

How are passengers and schools being affected?

One stranded traveller, Spanish tourist Diego Urdiales, had been due to fly home to Madrid and said he was still waiting to hear from his airline about rebooking. Another passenger, Michele Gouw, said the disruption was simply something people had to accept. “It’s a natural disaster, it’s a force majeure,” she said, according to AP.

Schools in affected parts of Jakarta and Lampung have moved to online learning to keep children away from the ash, state news agency Antara reported. The disaster agency has also advised people to wear masks outdoors.

What are airlines telling passengers?

Singapore Airlines said on social media that it had cancelled ten flights between Singapore and Jakarta on 6 and 7 September because of the eruption, warning that other flights on the route could also be affected as the situation remained fluid. The airline said passengers who booked directly with it could use its online form to rebook or ask for a refund, while those who booked through a travel agent or another airline should contact them directly. “SIA apologises to all affected customers for the inconvenience caused,” the airline said in its post.

People look at an information board as flights are disrupted due to the eruption of Mount Anak Krakatau, at Soekarno-Hatta International Airport in Tangerang, Indonesia. (Photo: AP)

 

 

Singapore Airlines flights cancelled

Due to Anak Krakatau eruption, 6 to 7 September 2026 (local times)

Flight	Route	Date	Time
SQ968	Singapore to Jakarta	6 Sep	2155
SQ951	Jakarta to Singapore	7 Sep	0525
SQ950	Singapore to Jakarta	7 Sep	0620
SQ952	Singapore to Jakarta	7 Sep	0740
SQ956	Singapore to Jakarta	7 Sep	0905
SQ953	Jakarta to Singapore	7 Sep	0805
SQ955	Jakarta to Singapore	7 Sep	0925
SQ957	Jakarta to Singapore	7 Sep	1100
SQ958	Singapore to Jakarta	7 Sep	1235
SQ959	Jakarta to Singapore	7 Sep	1420

10 flights cancelled so far. Other Singapore-Indonesia flights may also be affected as the situation remains fluid. Direct bookers can rebook or request a refund via SIA's Assistance Request Form; those booked through an agent or partner airline should contact them directly.

Source: Singapore Airlines

Meanwhile social media accounts reported that more than 200 flights had been diverted from Soekarno-Hatta airport after the eruption, and that the World Meteorological Organization had released footage showing smoke from Indonesian forest fires drifting into Malaysia, Singapore and the Philippines.

BREAKING : The World Meteorological Organization Released a footage of smoke from Indonesian forest fires has crossed into Malaysia, Singapore and the Philippines pic.twitter.com/fWNeRbfH8v

— World Updates (@Updatesofwworld) September 6, 2026

‘Ring of Fire’

Anak Krakatau means “child of Krakatau” and formed from the site of the much larger Krakatau volcano, whose 1883 eruption killed more than 36,000 people in a series of tsunamis and cooled the global climate for years afterwards.

In 2018, an eruption of Anak Krakatau triggered an underwater landslide that caused part of its slope to collapse, setting off a tsunami that killed at least 430 people in Sumatra and Java. Scientists said the island was left about a quarter of its original size after that event.

Indonesia sits on the Pacific “Ring of Fire”, a zone known for frequent earthquakes and volcanic eruptions.