What If on MSN

A volcanic cloud is racing toward you. Here’s your only chance

A volcano starts rumbling, and suddenly erupts. But instead of seeing lava trickling down, you see a massive cloud of ash ...
Nanowerk

Pyroclastic flow

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 ...
afarTV on MSN

Thermal camera reveals the extreme heat of Semeru’s pyroclastic flow

Unlike a regular camera view, the thermal perspective makes the temperature of the flow far more visible, highlighting the ...
Forbes

Here’s Why Mount Etna Erupted, Sending Tourists Running

There is no current danger to the population after a pyroclastic flow on Italy’s Mount Etna produced a huge plume of ash Monday, sending tourists running. The flow moved away from a group of tourists ...