Caldera

Calderas form when a magma chamber empties, causing the roof to collapse. These structures can span tens to hundreds of kilometers and often form after explosive eruptions, such as the Toba caldera 75,000 years ago.

What happens when a magma-filled chamber empties?

How long can a caldera be?

What can sometimes trigger the formation of a caldera?

Can you name a historical example of a caldera formation?

What is the significance of the Toba eruption in relation to calderas?