Greece

Do you know that the amount of magma produced by one of Santorini’s eruptions was large enough to blanket Singapore with more than fourteen metres of magma?

The town of Fira overlooks the caldera of Santorini, whose distinctive ring shape was formed by several large volcanic eruptions that caused multiple caldera collapses.

How Long Does it Take to Build a Caldera-Sized Magma Reservoir?

Some eruptions are so large, and discharge so much magma (molten rock), that the roof of the magma chamber can no longer support itself. When the roof collapses, it forms a big hole in the ground called a caldera. One such volcano is Santorini, in Greece, whose distinctive ring shape was formed by multiple caldera collapses.

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