Anak Krakatau Volcano Status Downgraded from Alert to Level II Caution

The Geological Agency of the Ministry of Energy and Mineral Resources (ESDM) has lowered the activity level of the Anak Krakatau volcano in the Sunda Strait from Level III (Alert) to Level II (Caution), effective from Monday night.

Lana Saria, Head of the Geological Agency, stated in a report in Jakarta on Monday that this status downgrade was established after a thorough analysis and evaluation of the decrease in volcanic activity and deformation data, which indicates signs of deflation.

Previously, the activity level of this Type A active volcano had been raised to Level III (Alert) on 2 July 2026, due to increased seismicity and deformation. During that period, Mount Anak Krakatau recorded 224 eruptions up until 3 September 2026.

The volcano also experienced continuous eruptions for 25 hours between 4 and 6 September 2026, resulting in lava flows towards the northwest, west, and southwest.

Alongside this decrease in activity levels, the Geological Agency has issued a recommendation that the public, tourists, and hikers avoid approaching or engaging in activities within a two-kilometre radius of the crater centre to anticipate the danger of volcanic rock fragments and heavy ashfall.

Furthermore, residents in the coastal areas of Banten and Lampung provinces are urged to remain calm and not to believe misleading rumours regarding eruptions being linked to potential tsunami threats.

The public is advised to continue their activities as usual while remaining vigilant and following the directions provided by the local Regional Disaster Management Agency (BPBD).