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 ...

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 ...

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 ...

The discovery of the driving force behind the world's deadliest volcanic events could help improve forecasting of their devastating effects, new research suggests. The findings reveal the mechanism ...

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 ...

Pyroclastic flows from Mayon Volcano surged 4 kilometers down the Mi-isi Gully in late May 2026, marking the farthest runout since the current eruptive episode began. Sulfur dioxide emissions spiked ...

MANILA, Philippines — The Mayon Volcano is exhibiting signs of increasing unrest, with bright red magma and glowing pyroclastic density currents called "uson" continuing to stream from its summit as ...