Campi Flegrei

The Campi Flegrei caldera is well known for a phenomenon named "bradyseism" which is the alternating uplift and sinking of the ground within the caldera. Several dramatic episodes of uplift are known from the past 300 years, one of them has culminated in an eruption so far, in 1538, when the most recent volcanic feature of the Campi Flegrei was born, Monte Nuovo, "the new Mountain". Renewed uplift in the 1970's and 1980's has not been followed by an eruption but has triggered intense efforts for a better understanding of such complex volcanic systems, and led to detailed hazard assessments.