Anak Krakatau metamorphosis during its 2018 eruption

Sentinel-2 MSI L1C acquired on 16 November 2018 at 03:00:01 UTC
Sentinel-1 CSAR IW acquired on 22 December 2018 at 22:33:45 UTC
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Sentinel-1 CSAR IW acquired on 08 January 2019 at 22:41:39 UTC
Sentinel-2 MSI L2A acquired on 02 February 2019 at 03:09:39 UTC
Author(s): Sentinel Vision team, VisioTerra, France - svp@visioterra.fr
Keyword(s): Geohazard, island, archipelago, coastal, natural disaster, volcano, earthquake, Indonesia, Pacific Ring of Fire
Fig. 1 - S2 (16.11.2018) - 12,11,2 colour composite - Anak Krakatau appeared in 1927, after the Krakatau volcano collapsed in 1883.
2D view
Fig. 2 - S1 (22.12.2018) - vv,vh,vv colour composite - Anak Krakatau had erupted +40 times since it emerged, it was active since June 2018.
2D view
Fig. 3 - S1 (28.12.2018) - vv,vh,vv colour composite - Its activity caused a submarine collapse and a tsunami on 22.12.2018.
2D view
Fig. 4 - S1 (08.01.2019) - vv,vh,vv colour composite - After this collapse, the volcano grew a new cone and a larger caldera.
2D view 2D animation
The shape of the island changed slightly since February, the circular caldera enlarged and became less regular. The lake still contains large amounts of unconsolidated sediments, giving it earthy hues after rainfalls. The western gap between the caldera and the sea also widened slightly.
Fig. 5 - S2 (02.02.2019) - 4,3,2 natural colour - The lack of vegetation on the emerged volcano makes it vulnerable to erosion.
2D view
Fig. 6 - S2 (12.06.2019) - 4,3,2 natural colour - Panjang island (east) vegetation took months to start recovering its destruction.
2D animation 2D view
The views expressed herein can in no way be taken to reflect the official opinion of the European Space Agency or the European Union.
Contains modified Copernicus Sentinel data 2024, processed by VisioTerra.
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