Pressures within pyroclastic flows may be as much as three times as great as observations had suggested.

Volcanologist Professor Chris Jackson discovers evidence of the deadly pyroclastic flow.

An explosion on the slopes of Stromboli sent an avalanche of pyroclastic flow rushing down the side of the Italian volcano on Monday (Nov. 16). The stronger-than-usual explosion was captured on ...

Pyroclastic flows are a leading cause of eruption-related deaths. Now, lab tests reveal the mind-bending reason they may rush down a volcano’s flanks.

Archaeologists have found that some people perished in a pyroclastic surge, a wave of superheated gas and hot ash that literally boiled their blood and caused their skulls to explode, reports Neel ...

Mixtures of hot volcanic rock and gas called pyroclastic flows travel so far by gliding on air, a new study suggests.

Archaeologists have discovered the bodies of two men who died during so-called second pyroclastic flow, after the initial eruption of Mount Vesuvius.

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.

But the defining event of Monday’s eruption was the more rare pyroclastic flow from the southwestern crater not visible from a distance.

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 ...

A lava flow was spotted by satellites winding down the flanks of Mount Etna during an explosive outburst on June 2, which also released a large pyroclastic flow in the opposite direction. | Credit ...