Pyroclastic surges are lethal hazards from volcanoes that exhibit enormous destructiveness through large dynamic pressures of 100–102 kilopascal inside flows that are capable of obliterating ...

About 7,700 years ago, Mount Mazama’s climactic eruption pushed pyroclastic flows as far as 43 miles down every valley ...

Dozens of people have been killed, and with many more missing, after Volcán de Fuego (Fuego) in Guatemala erupted on June 3 2018. In recent years, Fuego has regularly ejected small gas and ash ...

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 ...

Dumping literal tons of hot volcanic material down a lab flume may finally have revealed how searing mixtures of hot gas and rock travel so far from volcanic eruptions. These pyroclastic flows can ...

On Sunday, Guatemala's Volcán de Fuego -- "Volcano of Fire" -- erupted violently, spewing ash nearly four miles into the air and burying villages under an avalanche-like phenomenon called a ...

Guatemala's Volcán de Fuego has erupted into its most explosive mode of 2026, sending pyroclastic flows — fast-moving avalanches of superheated gas, ash, and rock capable of traveling up to 435 mph ...

When Guatemala’s Volcán de Fuego erupted in June 2018, it sent a billowing hot cloud of gas, ash and rock careening down the slope of the mountain. In the many smartphone videos of the eruption, the ...

Dozens of people have been killed, and with many more missing, after Volcán de Fuego (Fuego) in Guatemala erupted on June 3 2018. In recent years, Fuego has regularly ejected small gas and ash ...