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 ...

A section of lava collapses on Mayon Volcano, sending hot ash, gas, and volcanic material rushing down the slope as a ...

YAMAGUCHI—An eruption of Mount Aso in Kumamoto Prefecture 90,000 years ago created a pyroclastic flow that traveled 170 kilometers north to the Sabagawa river here, the longest such distance recorded ...

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 ...

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

TEMPO.CO, Jakarta - The head of Indonesia’s Geological Agency, Muhammad Wafid, has warned that deposits from Mount Semeru’s recent pyroclastic flows could trigger secondary disasters if not properly ...

Smoke is seen rising from the crater of Mount Shindake on Kuchinoerabu Island in Yakushima, Kagoshima Prefecture on Feb. 3, 2020. (Image from a Japan Meteorological Agency monitoring camera) ...

MANILA, Philippines — Since showing increased activity earlier this year, Mayon Volcano generated its "largest" pyroclastic density current so far, with an ash plume reaching up to 1,000 meters on ...

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 ...