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A supervolcano caused the largest eruption in European history. Now it's stirring again.
A supervolcano caused the largest eruption in European history. Now it's stirring again.
The Italian name for the caldera - Campi Flegrei, or "burning fields"- is apt. The 7.5-mile-wide cauldron is the collapsed top of an ancient volcano, formed when the magma within finally blew. Though half of it is obscured beneath the crystal blue waters of the Mediterranean, the other half is studded with cinder cones and calderas from smaller eruptions.
washingtonpost.com



