When Mayon volcano’s summit collapsed on May 2, 2026, superheated avalanches of gas, rock, and debris roared roughly 4 kilometers down the Mi-isi gully, one of the volcano’s most active drainage ...

A wall of superheated rock and gas tore down the slopes of Mayon Volcano on the evening of May 2, 2026, after unstable lava near the summit collapsed without warning. The pyroclastic flows traveled ...

Scientists think they’ve figured out how pyroclastic flows, fast-moving bringers of death during volcanic events, can travel such incredible distances and speeds despite the friction between the ...

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 ...

Avalanches of ash, gas and rock that cascade downhill during volcanic eruptions may be even more dangerous than scientists had realized. Pulses of high pressure form within these slides, known as ...

After an eruption, DIY cushions of gas help searing torrents of gas, ash, and rock spread miles from their source within a matter of minutes. ByKatherine J. Wu Monday, April 8, 2019 NOVA NextNOVA Next ...

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 through ...

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 ...