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An enormous supervolcano may be hiding under Alaskan islands

A geologic game of connect the dots reveals hints of a giant undersea crater

Islands of the Four Mountains

The multiple volcanoes in the Islands of the Four Mountains (shown), part of the chain that make up the Aleutian Islands in southwestern Alaska, appear to be connected by one large caldera created when a supervolcano erupted, a new study suggests.

NASA

By Beth Geiger

- More than 2 years ago

A mysterious, previously undiscovered supervolcano may be lurking beneath Alaska’s Aleutian Islands.