Science

Krakatoa Eruption Timeline 1883-2026: Anak Krakatau, Tsunamis & Major Eruptions

Krakatoa's 1883 eruption in Indonesia's Sunda Strait destroyed most of the original island and killed an estimated 36,417 people, mostly from tsunamis. Its vol…

Swipe to explore ›
AiTimeline Home
KRAKATOA CATASTROPHE

Krakatoa Erupts Catastrophically in the Sunda Strait

Krakatoa erupted catastrophically over 26-27 August 1883, destroying much of the island and generating deadly tsunamis that struck Java and Sumatra. The official Dutch d…

AiTimeline Home
ISLAND RESHAPED

The Eruption Leaves Behind a Collapsed Caldera

Much of the old volcanic structure collapsed into a submarine caldera, leaving only fragments of the original island — chiefly the remnant Rakata — and a dramatically al…

AiTimeline Home
ANAK KRAKATAU EMERGES

Anak Krakatau Rises From the 1883 Caldera

Anak Krakatau, 'Child of Krakatoa', emerged from the sea in late 1927, inside the caldera left by the 1883 eruption, according to the Smithsonian Global Volcanism Progra…

AiTimeline Home
THE CHILD VOLCANO GROWS

Anak Krakatau Builds Itself Through Repeated Eruptions

Anak Krakatau went through more than 40 recorded eruptive episodes between 1927 and December 2018, reaching a height of roughly 338 meters, per the Smithsonian GVP.

AiTimeline Home
FLANK COLLAPSE TSUNAMI

Flank Collapse Triggers a Deadly Sunda Strait Tsunami

On 22 December 2018, part of Anak Krakatau's southwest flank collapsed into the sea during an eruption, triggering a tsunami with no earthquake trigger and little to no…

AiTimeline Home
MONITORING CONTINUES

Repeated Eruptions as the Cone Rebuilds

PVMBG kept Anak Krakatau under close watch as it produced further eruptions and ash plumes, slowly rebuilding its shattered cone.

AiTimeline Home
ALERT RAISED

Indonesia Raises Anak Krakatau to Level III (Siaga)

On 2 July 2026, PVMBG raised Anak Krakatau's status from Level II (Waspada) to Level III (Siaga) after a surge in volcanic earthquakes and deformation, enforcing a 3km e…

AiTimeline Home
ASH DISRUPTS JAKARTA

Ash Cloud Grounds Flights at Jakarta's Main Airport

Reuters reported that Anak Krakatau's eruption led to the suspension of 209 flights at Jakarta's Soekarno-Hatta International Airport, with ash plumes reaching up to abo…

AiTimeline Home
LIVING WITH THE VOLCANO

Ongoing Monitoring on Indonesia's Ring of Fire

Anak Krakatau sits on Indonesia's stretch of the Ring of Fire. Future risk depends on eruption style, flank stability, and how quickly monitoring and exclusion zones res…

AiTimeline Home

Want the full timeline?

Read the complete story, FAQs and key facts.

AiTimeline Home