Krakatau volcano (Sunda Strait, Indonesia): sudden eruption yesterday sends ash to 1,500 m altitude

mer., 27 oct. 2021, 09:44
09:44 AM | AUTEUR : T
Eruption from Krakatau yesterday (image: PVMBG)
Eruption from Krakatau yesterday (image: PVMBG)
An eruption occurred from the active crater yesterday. The event was likely a phreatic explosion, i.e. steam driven only, caused by overheated water flashing to steam. It generated an ash- and steam column that rose to 1,500 m and rifted east.
The volcano observatory reported a seismic signal with a maximum amplitude of 45 mm and a duration of 45 seconds. During the past weeks, there have been no particular signs of unusual activity and relatively few quakes at the volcano (only about 6 daily quakes on average), which is why the explosion came as a surprise.

Actualités précédentes

mer., 20 oct. 2021, 06:00
PVMBG reported that at 1413 on 26 October an eruption at Anak Krakatau produced a dense gray ash plume that rose 500 m above the summit and drifted N. The eruption lasted 45 seconds based on seismic data. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 2-km-radius hazard zone from the crater. ... Read all
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