Overview
- Mount Anak Krakatau erupted late Friday, Sept. 5, sending lava and an ash plume into western Indonesian airspace and prompting immediate safety closures.
- Authorities shut eight airports over the weekend, a disruption that grew to about 2,961 affected flights and roughly 341,000 passengers as ash spread across Java and Sumatra.
- Soekarno-Hatta in Jakarta and four other regional airports restarted operations in the early hours of Tuesday after ash shifted away and ground-level tests found no trace of ash.
- Officials are carrying out runway cleaning and airworthiness inspections of aircraft that were grounded, and airlines including Singapore Airlines are running relief flights and rebooking programmes to move stranded travellers.
- Indonesia’s geological agency warns the volcano remains active and the risk of further eruptions stays high, a reminder of Anak Krakatau’s deadly 2018 collapse and the ongoing need for cautious monitoring.