Krakatoa (Gunung Krakatau) is a volcanic island in the Sunda Strait between Java and Sumatra in Indonesia. It is part of Lampung province in Sumatra.

The eruption of Mount Krakatoa in 1883 was one of the most violent volcanic events on record. A huge explosion (150 megatons of TNT) occurred as seawater hit hot magma and turned instantly to steam. The blast was heard over 4,000 km away in Australia and India.

- Wikivoyage