[CLSTR]
< Back to situations

Monitor this situation.

[SITUATION] · [ACTIVE] · [INTERNATIONAL]

2 clusters · 5 sources · 22 days · First seen · Last updated

Anak Krakatau volcanic activity

Overview

The Anak Krakatau volcano in the Sunda Strait has experienced a period of increased volcanic activity. In late July 2026, the volcano erupted twice, producing ash plumes approximately 300 metres above the crater. Following these events, the alert level was raised from Level II (Waspada) to Level III (Siaga).

By mid-August 2026, activity intensified, with the Indonesian Geological Agency reporting eight eruptions within a 24-hour period. These eruptions included incandescent lava bursts and ash clouds reaching heights of 200 to 300 metres. Seismographic data recorded various tremors, including eruption earthquakes and harmonic tremors.

The volcano remains at Level III (Siaga) status. Authorities have issued safety recommendations for the public, tourists, and fishermen to avoid activities within a 2 to 3-kilometre radius of the crater to mitigate risks from volcanic projections.

Entities

Geological Agency of Indonesia · Sunda Strait · Anak Krakatau · Center for Volcanology and Geological Hazard Mitigation

Timeline

  1. 4 days ago

    [INTERNATIONAL] 5 sources
    Anak Krakatau volcano erupts multiple times in Sunda Strait

    Mount Anak Krakatau experienced multiple eruptions and lava bursts on August 16, 2026. The volcano remains at Level III (Alert) status, with authorities advising a 3-km safety radius around the crater.

  2. 26 days ago

    [INTERNATIONAL] 3 sources
    Anak Krakatau erupts twice, emitting 300‑meter ash plume over Sunda Strait

    Anak Krakatau erupted twice on 25 July 2026, sending a 300‑m ash plume northwest; authorities raised the alert to Level III and warned nearby fishermen and tourists to stay clear.

Sources

antaranews.com · ekbis.harianjogja.com · forteresse-miremont.fr · inponews.com · us.nasional.news.viva.co.id