Krakatau volcano lies in the Sunda strait between the islands of Java and Sumatra. The eruption in 1883 produced one of the largest explosions on Earth in recorded time and destroyed much of Krakatau island, leaving only a remnant.

In 1960, Anak Krakatau had a minimum diameter of about one mile (1.5 km) and was 545 feet (166 m) tall. A crater on the south side of the island was 2,000 feet (600 m) in diameter and contain a growing cinder cone 300 feet (100 m) in diameter and 150 feet (50 m) high. The new cinder cone formed in about a month and can be seen just below the ash column. Verlaten Island, near the top of this photo, is a remnant of the volcano that was destroyed by the 416 A.D. caldera collapse.