Five Airports Shut as Anak Krakatau Eruption Spreads Ash Across Java and Beyond
Volcanic ash from Anak Krakatau brought flight operations at five Indonesian airports to a halt on Sunday, 6 September 2026, in one of the most disruptive aviation events the region has seen from this volcano in recent years. The closures stretched from the capital outward, grounding travelers and raising health concerns across a wide arc of western Indonesia.
Which Airports Were Affected
Soekarno-Hatta International Airport, Indonesia's busiest, was the first to close, suspended from 1:30 am local time after ash was detected in the airport area. Four additional airports followed: Halim Perdanakusuma in Jakarta, Raden Inten II in Lampung, Budiarto Airport in Curug, and Pondok Cabe Airfield. Transport Ministry Civil Aviation Director General Lukman F Laisa confirmed all five closures at an online press conference, noting that authorities were continuing to monitor ash movement in coordination with airport operators, AirNav Indonesia, and the national meteorological agency BMKG.
Soekarno-Hatta and Budiarto were scheduled to remain closed until 1:30 pm local time, while Halim Perdanakusuma, Raden Inten II, and Pondok Cabe were set to reopen at 2:00 pm, subject to conditions.
How Far the Ash Reached
BMKG's satellite analysis at 8:00 am on Sunday identified two distinct ash clusters. One covered Banten, Jakarta, and West Java; the other extended as far as Bengkulu. Aviation warnings placed ash at up to 6,096 metres moving east and up to 15,240 metres moving west, a spread significant enough to affect routing well beyond the immediate closure zones.
Anak Krakatau, situated in the Sunda Strait between Java and Sumatra, has been at Level III (Alert) since 2 July 2026, the second-highest tier in Indonesia's four-level volcano alert system, with a three-kilometre exclusion zone around the crater. The Indonesian Geological Agency's head, Lana Saria, noted that continuous eruptions reflect an ongoing supply of magma and gas but stressed that frequent activity does not automatically signal a larger event. She also addressed tsunami concerns directly, stating that the volcano's regrown edifice since the December 2018 Sunda Strait disaster remains relatively small and is not considered capable of collapsing at a scale that could trigger a comparable wave.
Health Guidance for People on the Ground
Health Minister Budi Gunadi Sadikin activated Health Emergency Operations Centres and advised residents in ash-affected areas to stay indoors where possible. For those who must go outside, masks and protective eyewear are recommended. Community health centres have been stocked with nebulisers, oxygen concentrators, eye drops, and skin ointments to address respiratory, eye, and skin complaints. A weather modification operation was also planned for Sunday to help reduce ash concentrations over Jakarta and surrounding areas.
Why It Matters for Hosts
Independent accommodation operators in Jakarta, Banten, Lampung, and West Java should prepare for sudden influxes of stranded travelers when airport closures occur, as well as equally sudden cancellations when guests cannot reach them. Keeping a clear, up-to-date cancellation and rebooking policy visible to guests before they travel is essential during active volcanic periods. Hosts should also stock basic health supplies, particularly masks, and be ready to communicate air quality conditions proactively to arriving guests. Maintaining flexible booking terms during Level III or higher alert periods can protect both guest relationships and revenue.
Details of the airport closures and volcanic activity were first reported by Bernama and published by The Star on 6 September 2026.
First reported by thestar.com.my.