Anak Krakatau erupted late on Friday, igniting lava fountains and filling the air with volcanic ash that drummed over Jakarta and the surrounding provinces.

The quake‑switched volcano is located 150km from Jakarta in the Sunda Strait, and the eruption sent ash up to 6,000m inland on Java and 15,000m on Sumatra. The ash cloud forced the closure of Jakarta’s Soekarno‑Hatta International Airport and three other major airports, which extended operations until 18:00 local time on Monday.

Over 270,000 passengers have been left stranded across Indonesia, with many grappling for refunds and updates as flight schedules are repeatedly altered. One passenger, Finna, who had been traveling from Malang to Jakarta, spent the night on two intercity trains before finally arriving at 03:00 on Monday.

Airlines, airports and the Indonesian Geological Agency warned that the probability of further eruptions remains high. The ash cloud reached meters of height over the eastern coast and caused flooding in the industrial hub of Merak, demanding evacuation of all people within a 3km radius of the active crater.

While no tsunami warning was issued, authorities cautioned vessels and people near the volcano’s 3km exclusion zone, and many ships in the Sunda Strait were also denied entry. Appeals from travelers include a Malaysian couple stranded in Jakarta, whose return flight to Kuala Lumpur is delayed until 11 September, and members of the conservation group Save the Rhino International, who halted their planned activities in Ujung Kulon National Park due to heightened seismic risk.

With the volcano’s activity still volatile, the Transport Minister, Dudy Purwagandhi, noted that authorities conduct ash‑fall tests every 30 minutes to track the spread and anticipate national safety strategies. Indonesia’s reliance on air travel during the holiday season has been thrown into question, as this event marks the largest passenger disruption in the area since the 2018 collapse of Anak Krakatau, which triggered a tsunami killing over 400 people.

Keep following the live stream for updated information on air travel, ash‑fall alerts and rescue operations in Indonesia.