Italy's Supervolcano on the Brink of Eruption Again, Experts Warn

The Campi Flegrei supervolcano in southern Italy, which last erupted in 1538, is showing signs of possible eruption again, according to a study by European researchers. Tens of thousands of earthquakes have been recorded around the volcano, causing the town of Pozzuoli to rise by 13 feet. The ground is "nearly to the breaking point," and the earthquakes are caused by movement of fluids beneath the surface, which may be molten rock, magma or natural volcanic gas. While there is no guarantee of an eruption, the study marks a step change in improving forecasts of eruptions worldwide.