Before-and-after images reveal the transformation of Indonesia's tsunami-causing volcano
El Ghazali/Barcroft Media/Getty
- The Anak Krakatau volcano (Malay translation: child of Krakatoa) is one of the most active in Indonesia.
- On December 22, 2018, part of the volcanic crater collapsed into the surrounding water, triggering tsunami waves up to 10 feet high.
- The waves pummeled the islands of Java and Sumatra, killing more than 400 people and injuring 1,400. Thousands lost their homes.
- The volcano used to be 1,108 feet high, but shrank to a quarter of its original size after the collapse.
On December 22, 2018, tsunami waves hit the coasts of the Indonesian islands Sumatra and Java, killing more than 400 people and injuring well over a thousand.
The tsunami was caused by the collapse of a 64-hectare (158-acre) section of the Anak Krakatau volcano.
"This caused an underwater landslide," Dwikorita Karnawati, head of the Indonesian meteorological agency, told The Guardian.
The collapse transformed Anak Krakatau.
Øystein Lund Andersen, a nature photographer who documents Indonesian volcanoes, shared the following before-and-after images on Twitter last week. One photo of the volcano was taken August 5, 2018, while the other was captured January 11, 2019.
The following images, many taken by the WorldView-2 satellite, show Anak Krakatau's stunning transformation. The collapse reduced the 1,100-foot-tall volcano to a crater a quarter of the size.
Anak Krakatau is one of the world's most famous volcanoes.
Anak Krakatau grew steadily each year until the partial collapse in December 2018. This is what it looked like in November 2017.
Satellite imagery shows what the volcano looked like after the collapse — it's as if a giant thumb pushed down on Anak Krakatau.
After the collapse, Anak Krakatau shrank to just a quarter of its original height.
Anak Krakatau spewed so much ash into the air that planes had to be re-routed around the Sunda Strait area.
Subsequent eruptions will help to rebuild the volcano, forming a new island.
Indonesia needs to be prepared for future tsunamis, experts say.
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