How Was Krakatoa Formed?

Krakatau volcano lies in the Sunda strait between the islands of Java and Sumatra. In about 416 A.D., caldera collapse destroyed the volcano and formed a 4-mile (7-km) wide caldera. ... Rakata, a remnant of the volcano prior to the 1883 eruption, is in the background.

What caused Krakatoa to form?

It was the morning of August 27, 1883 that one of the world’s most astronomical eruptions occurred from the Krakatoa volcano. ... This eruption was caused by high pressure buildup in the two underlying tectonic plates. The resulting crack allowed for water to enter the volcano and mix into the magma cavity.

What kind of volcano is Krakatoa?

Mount Krakatoa is an example of a stratovolcano, a tall, conical volcano with multiple strata of solidified lava, tephra, as well as volcanic ash. These type of volcanoes typically have steep sides and usually erupt frequently & violently.