One of the leading killers during explosive volcanic eruptions is a family of superheated gas, ash, and debris known as pyroclastic density currents. These tumbling, turbulent paroxysms rush downslope ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. About 18.8 million years ago, at what would become the intersection ...

Rocky debris and superheated steam that erupts out of volcanoes can travel over land at around 200 kilometres per hour. A study shows that these pyroclastic flows are so speedy because the rubble ...

When Guatemala’s Fuego volcano erupted on June 3, villages, coffee farms and a golf resort downslope were consumed in just minutes by a pyroclastic flow — a fast-moving mixture of hot gas and volcanic ...

Guatemala’s Volcan de Fuego — Volcano of Fire — erupted spectacularly Sunday, shooting a plume of ash and gas nearly six miles into the sky and spreading ash and debris across towns and farms more ...