A MEGA-VOLCANO in southern Italy is showing signs of "reawakening" and could bring widespread devastation to the region. A slumbering volcano beneath the city of Naples may be near to its critical pressure point which could lead to a massive eruption. Researchers have identified the threshold at which rising magma at the Campi Flegrei volcano could trigger an eruption and have found that it is nearing that point. Lead researcher Giovanni Chiodini, a researcher at Italy's National Institute of Geophysics and Volcanology in Bologna, said: "Hydrothermal rocks, if heated, can ultimately lose their mechanical resistance, causing an acceleration towards critical conditions." The experts are unable to say when the volcano, which is bigger than the nearby Mt Vesuvius that was responsible for the deadly Pompeii incident in 79AD, will erupt. However, if it were to erupt, "it would be very dangerous" for the 500,000-plus people living locally. Mr Chiodini said that dense population "highlights