A large pyroclastic flow races down Mayon Volcano, sending ash sweeping across the slopes. The fast-moving surge shows why ...

A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ...

Add Yahoo as a preferred source to see more of our stories on Google. A lava collapse at Mayon Volcano in the Philippines triggered a fast-moving pyroclastic flow on May 13, sending a volcanic plume ...

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New Zealand research could help track the path of searingly hot rock and gas flows that are the world's most deadly volcanic hazard. Te Whare Wānanga o Waitaha | University of Canterbury School of ...

MANILA, Philippines — A lava flow collapse at Mayon Volcano in Albay generated a pyroclastic density current (PDC) on Tuesday morning, state volcanologists said. A PDC is a rapid, ground-hugging surge ...

There is no current danger to the population after a pyroclastic flow on Italy’s Mount Etna produced a huge plume of ash Monday, sending tourists running. The flow moved away from a group of tourists ...

A pyroclastic event at Mayon Volcano triggered fresh warnings as hot ash, gas, and volcanic debris moved down the slopes.