(ash flow) A very hot, dense cloud of volcanic ash and other pyroclastic material which is produced by explosive deisintegration of viscous lava in a vent and travels very rapidly down the slope of a volcano.
A French term applied to a highly heated mass of gas-charge ash which is expelled with explosive force, and hurricane speed, down the mountainside.
A mobile dense cloud of hot pyroclastic materials and gases ejected from a volcano.
French word used to describe a glowing avalanche of hot gas and other volcanic fragments of all size(like ash, pumice, rock debris, etc.).
(French = glowing cloud) turbulent, incandescent gas cloud erupted from a volcano (also called a Pelean cloud).
cloud of superheated gases generated during a volcanic eruption.
A sometimes glowing cloud of gas and pyroclastics erupted from a volcano and moving swiftly down its slopes. Also called a pyroclastic flow.
This is a type of volcanic activity whose name is french, meaning firey cloud. Associated with pyroclastic flows, they are very hot, sometimes glowing clouds of gas and volcanic debris that is forcefully ejected down the sides of a volcano.
(French for "glowing cloud") - a hot mixture of gas and ash which moves at lightning speed down a volcano's slope, burning and burying everything in its path
a swiftly-flowing, turbulent, gaseous cloud, sometimes incan-descent, erupted from a volcano and containing ash (glass shards) and other pyro-clastic fragments in its lower part.
Literally a ‘glowing cloud'; a form of pyroclastic flow.