What happens when a volcano explodes with the force of 200 megatons? The Krakatoa eruption of 1883 was so powerful that it wiped out entire communities, created massive tsunamis, and altered Earth’s ...

The tsunami is thought to have been caused by a landslide after Anak Krakatoa, the "child" volcano of Krakatoa, erupted. The wave slammed into tourist beaches around 9.30pm, with no warning.