Pyroclastic flow can travel down a mountain at speeds from 60 miles per hour to more than 200 miles per hour, which makes running away impossible if you are too close at the time of eruption.

Mount Etna, the volcano that towers over eastern Sicily, has again captivated the world with a spectacular show, spewing smoke and high into the sky. But the defining event of Monday's eruption was ...

Evidence suggests that the residents of the ancient town of Herculaneum were incinerated by a "pyroclastic flow" - a phenomenon that could strike modern-day Naples should Vesuvius erupt again.

The researchers said this could not have happened if the individual was heated solely by the pyroclastic flows – avalanches containing lava pieces, ash and hot gases – which buried Pompeii and ...

A volcanic eruption in Italy left people scurrying for cover from what officials are saying is a pyroclastic flow. Several videos circulating online show people running as smoke from the side of ...

Pyroclastic density current (PDC): A turbulent, high-density flow composed of volcanic ash, lapilli and gases that descends rapidly along a volcano’s slope following an eruption.

A ‘diluted pyroclastic density current’ (PDC) blasted from the volcano at a temperature of around 550C, according to a new study which used analysis of charcoal to reconstruct the event.