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Italy's Campi Flegrei volcano may unleash devastating eruptions more often than we thought, ancient outburst suggests

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Italy 's Campi Flegrei volcano may have had a more explosive history than experts thought.

A new study finds that the volcano laid down an enormous layer of ash and volcanic rock about 109,000 years ago .

The eruption would have removed more than 36 cubic miles ( 150 cubic km ) of magma from below the surface.

Stephanie Pappas is a contributing writer for Live Science .

She regularly contributes to Scientific American and The Monitor , the monthly magazine of the American Psychological Association .

She was previously a senior writer for the Live Science but is now a freelancer based in Denver , Colorado .

She received a bachelor's degree in psychology from the University of South Carolina .