Indonesian caldera and volcanic archipelago in the Sunda Strait
Anak Krakatau has erupted since late Friday, producing lava fountains and ash plumes up to 50,000ft and forcing temporary closures at Soekarno‑Hatta and multiple regional airports. Authorities have suspended operations at several airports, delayed or cancelled hundreds of flights and stranded tens to hundreds of thousands of passengers while marine and air exclusion zones remain in place.
Airports serving Jakarta have reopened after volcanic ash from Anak Krakatau has moved away. Authorities are conducting inspections and cleaning as flight disruptions affect thousands of passengers across eight airports.