These currents are so sparse that have been known to actually go up hills and across water ... or "boiling over" of material from an eruptive vent can also trigger pyroclastic flows, particularly ...

These trees are likely being pushed over by rolling boulders in the flow as the forest is slowly consumed, almost more like a slow-moving a'a lava flow than what we picture with pyroclastic flows.

These pyroclastic flows can travel tens to hundreds of kilometers over rough terrain and even ... with the ground as if they were made of water,” says Alain Burgisser, a geologist at the ...

Volcanologist Professor Chris Jackson discovers evidence of the deadly pyroclastic flow. Volcanologist Professor Chris Jackson reveals the power of the deadly pyroclastic flow that had swept ...

Pyroclastic flows sometimes travel over the sea. But this particular flow remained hot in Yamaguchi Prefecture, indicating that water did not separate Mount Aso, now on the southernmost main ...

such as mountain ranges or open bodies of water. "The new large-scale experiments reported by Gert Lube and colleagues offer a physical explanation for the unusual mobility of pyroclastic flows ...

New Zealand research could help track the path of searingly hot rock and gas flows that are the world's most deadly volcanic hazard.

This story originally appeared in the Morning Brief email newsletter. Sign up here to get more stories like this and weekday weather updates from The Weather Channel and our meteorologists.