An ancient Italian supervolcano that hasn’t erupted in 500 years may be starting a stage of activity that could lead to a colossal eruption, spelling potential disaster for communities lying in its path.
Campi Flegrei may have entered a new magma cycle, according to newly released findings that suggest the feature’s “subvolcanic plumbing system” is commencing “a new build-up phase.” The researchers warn this could give rise “at some undetermined point in the future,” to “a large volume eruption.”

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