Full Breakdown
Anak Krakatau eruption grounds flights across Indonesia
9/7/2026, 7:44:32 AM
Core Event
On September 4 2026 the volcano Anak Krakatau in the Sunda Strait began a continuous eruption that lasted until early September 6 2026. Ash plumes rose to 20,000 ft (6,000 m) on the Java side and 50,000 ft (15,000 m) on the Sumatra side, prompting the Ministry of Transportation to suspend operations at Jakarta’s Soekarno-Hatta International Airport and seven other regional airports. The closures were extended through September 7 2026, with the main airport remaining shut until at least 6 p.m. local time.
Background & Context
Anak Krakatau, “Child of Krakatau,” emerged in the early 20th century within the caldera left by the 1883 Krakatau eruption. A partial collapse of Anak Krakatau in December 2018 triggered a tsunami that killed more than 400 people. The volcano sits on the Pacific “Ring of Fire,” where tectonic activity makes eruptions frequent.
Data & Statistics
- Airports closed: eight, including Soekarno-Hatta and Halim Perdanakusuma (Jakarta), Radin Inten II (Lampung), Husein Sastranegara (Bandung).
- Flights affected: reports range from 209 flights at Soekarno-Hatta to 1,558 flights across all eight airports.
- Passengers stranded: figures include 150,000, 170,000 and 263,000.
- Health advisories: the health ministry urged use of masks, eye protection and indoor stay for residents in affected areas.
Official Statements & Responses
Transport Minister Dudy Purwagandhi ordered the airport closures after ash tests indicated spread toward West Java and emphasized the need for airlines to provide refunds and clear information. Director General of Civil Aviation Lukman F. Laisa stressed that “safety remains our top priority” and warned of cascading disruptions to aircraft rotations. Health officials advised the public to wear N95/KN95 masks and protective glasses, citing risks of respiratory irritation and reduced visibility.
On-the-Ground Reports
Passengers at Soekarno-Hatta described long queues for refunds and uncertainty about alternative travel. Fishermen and students reported eye irritation from ash, prompting school closures and a shift to remote learning.
Conflicting Reports & Gaps
- Passenger counts: 150,000 vs. 170,000 vs. 263,000.
- Flight cancellations: 209 vs. 467 vs. 1,558 vs. 2,300.
- Duration of closures: some sources cite a midnight deadline on September 6, others note extensions to 6 p.m. on September 7.
These discrepancies reflect differing reporting windows and the rapidly evolving situation; no single source provides a definitive total.
Verbatim Quotes
- “We cannot ascertain when this will end due to the dynamic weather,” — Transport Minister Dudy Purwagandhi
- “Safety remains our top priority in every operational decision,” — Lukman F. Laisa
- “I’m worried it could seriously affect the lungs and cause a lung infection,” — Andre Bayu Saputra
What’s Next
Authorities will continue 30-minute ash detection tests at all airports and monitor volcanic activity through BMKG and the Darwin advisory centre. Alternative airports such as Kertajati, Semarang, Yogyakarta and Solo have been prepared for 24-hour operations, and airlines are urged to keep passengers informed of schedule changes. Officials caution that the timing and magnitude of any future eruption cannot be precisely predicted.
