Campi Flegrei - a large supervolcanic region to the west of Naples - hasn t erupted since 1538, but a spate of earthquakes has led scientists to fear it could soon blow.
The eruption of Mt. Pinatubo in the Philippines was the second-largest eruption of the century and the largest one to affect a densely populated area in that time.
Supervolcano of Italy More Likely To Erupt Than Previously Thought greekreporter.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from greekreporter.com Daily Mail and Mail on Sunday newspapers.