Geological Agency of Indonesia

Indonesia volcanic activity September-October 2026

45 clusters · 77 sources · last updated about 7 hours ago

Latest: Mount Semeru erupts in East Java, triggering stricter hazard zones

Indonesia’s volcanic activity intensified through August and early September 2026. Between August 18 and 20, Mount Ibu, Mount Lewotobi Laki-laki, and Mount Semeru all experienced eruptions. Mount Ibu was placed at Level

Anak Krakatau volcanic activity and new land formation

6 clusters · 50 sources · last updated 1 day ago

Latest: Anak Krakatau eruption creates two new islands

The Anak Krakatau volcano in the Sunda Strait has undergone a shift in activity levels. In mid-September 2026, the volcano transitioned from a period of continuous eruption to a Strombolian phase, marked by more episodic

Search ends for missing journalists near Anak Krakatau

18 clusters · 521 sources · last updated 14 days ago

Latest: Surakman identified as crew member of missing KM Arupadatu I

Indonesian authorities have officially terminated the search and rescue operation for eight people missing in the Sunda Strait. The group, consisting of five journalists and three crew members aboard the speedboat KM Aru

Anak Krakatau volcanic activity and ash impact

6 clusters · 39 sources · last updated 19 days ago

Latest: Anak Krakatau eruptions disrupt aviation and impact regional air quality

Mount Anak Krakatau in the Sunda Strait experienced a period of intense volcanic activity in late August 2026. During this time, the volcano produced frequent eruptions, including a series of events on August 24 and 25 t