Volcanoes like Mount St. Helens also often release pyroclastic flows, which are avalanches of hot rock, gas and ash that spill down the slopes at more than 200 mph (320 km/h). Pyroclastic flows ...

and pyroclastic-flow deposits).” Alert Level 1 remains hoisted over the volcano. Phivolcs previously warned that entering Taal Volcano Island and flying any aircraft close to its premises is ...

With this, the agency urged the public to stay clear of the four-kilometer Permanent Danger Zone (PDZ) due to the risk of sudden explosions, rockfalls, and pyroclastic density currents. Residents near ...

If Mount Spurr does erupt, it could produce explosive plumes of ash, destructive mudslides called lahars and avalanches of hot gas, ash and rock called pyroclastic flows, which would race down the ...

Nature Research Intelligence Topics enable transformational understanding and discovery in research by categorising any document into meaningful, accessible topics. Read this blog to understand ...

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 ...