Indonesia Lowers Anak Krakatau's Alert Status
The activity level of Mount Anak Krakatau has been lowered to Alert Level II on Monday, September 21, 2026.
Indonesia has lowered the alert status of Mount Anak Krakatau to Alert Level II as of September 21, 2026, reports TEMPO.CO. The volcanic activity that had escalated since July 2, has seen a notable decrease, with the volcano erupting 224 times until September 3. Continuous eruptions from September 4 to 6 produced lava flows that spread northwest, southwest, and west from the eruption center.
These eruptions also produced volcanic ash that reached Greater Jakarta, prompting authorities to close several airports for safety reasons.
Despite the reduced activity, seven Strombolian eruptions have continued. However, deformation data indicates a deflation, and seismic records show only one low-frequency earthquake on September 20, with tremors averaging only 2 millimeters in amplitude. Despite these signs of decreased activity, authorities have warned residents, visitors, tourists, and climbers that they remain prohibited from entering the volcanic area or within a 2-kilometer radius of the crater. The alert level will be reassessed periodically or should there be significant changes in activity.
Written by urgent.news from Tempo.co English's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
