supervolcanoes

Supervolcanoes

A supervolcano is a volcano on a massive scale. It is different from a volcano because:

• it erupts at least 1,000 km³ of material (a large volcano erupts around 1 km³)
• it forms a depression, called a caldera (a volcano forms a cone shape)
• a supervolcano often has a ridge of higher land around it
• a supervolcano erupts less frequently - eruptions are hundreds of thousands of years apart

The stages in the creation of a supervolcano…