Cloud of gas, ash, and other fragments that forms during an explosive volcanic eruption and travels long distances with the prevailing winds.
The column of gases, ash, and larger rock fragments rising from a crater or other vent. If it is of sufficient volume and velocity, this gaseous column may reach many miles into the stratosphere, where high winds will carry it long distances.
a gaseous cloud of volcanic ash and other pyroclastic fragments that is formed by volcanic explosion.
A column of gases, ash and rock particles rising from a vent or crater.
An eruption cloud (also called an ash cloud) is the cloud of ash, gas and rock fragments that forms after some volcanic eruptions.