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 — 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 ...

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 ...

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 ...

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 ...

An ongoing pyroclastic density current (PDC) event, locally known as uson, was recorded at Mayon Volcano on Sunday afternoon, according to the Philippine Institute of Volcanology and Seismology ...

Pyroclastic density currents are ground hugging gas-particle flows that originate from the collapse of an eruption column or lava dome. They move away from the volcano at high speed, causing ...

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. Pyroclastic flows contain a deadly combination of hot rock ...

'Putting an active nuclear power plant in the path of possible pyroclastic flows is very serious business and we better damn well face how they behave in real life' The following is the third in a ...

Pyroclastic density currents are one of the most devastating volcanic hazards. Understanding their dynamics is a key to develop successful hazard mitigation strategies. The hazard associated with ...

Dozens of people have been killed, and with many more missing, after Volcán de Fuego (Fuego) in Guatemala erupted on June 3 2018. In recent years, Fuego has regularly ejected small gas and ash ...

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) ...