Anak Krakatau eruption on September 4th 2026


 

Anak Krakatau’s 25-hour continuous eruption has ended, but the volcano remains highly active and could erupt again in the near future, the Geological Agency’s Volcanology and Geological Hazard Mitigation Center (PVMBG) said Monday.

Ongoing eruption began on September 4th and ended of 6th September. After lasting about 25 hours. Anak Krakatau has returned to Strombolian eruption pattern.

There have been signs of activity since Friday 4th September 2026, Indonesia's Geological Agency said.

Here's an aerial image of Mount Anak Krakatau on Saturday:



A satellite image of the ash


Anak Krakatau erupted for 30 seconds early on Sunday morning, with a subsequent 16-second eruption about 3 hours later. 

The most recent eruption was about 8:20pm on Sunday, local time.  

"The probability of further eruptions in the coming periods remains high," Indonesia's volcano monitoring agency said on Monday. 

Two ash clouds have been identified using satellite imagery, with one rising to about 6 kilometres high, drifting north-east over Jakarta, Banten, West Java and nearby waters. 

A second cloud went higher than 15km, spreading over parts of Banten, Lampung and Bengkulu provinces, the southern Sunda Strait and sections of the Indian Ocean west of Sumatra.



Anak Krakatau as seen from Carita Beach

No casualties were reported and no evacuation order was issued, however, volcanic ash spread across parts of Jakarta and Lampung province on Sumatra's southern tip.
Indonesia's disaster mitigation agency said there was no imminent risk of a tsunami.
By Sunday evening, eight airports had closed, with 1,558 flights cancelled.