The ancient Italian city of Pompeii soon experienced a second life after it was blanketed by pumice and ash from the Mount Vesuvius eruption of AD 79, say experts.

NASA's Mars 2020 rover is continuing to explore a boundary visible from orbit dividing bright, fractured outcrop from darker, ...

Hydrothermally altered rhyolite pyroclastic rock from the area of the exposed cryptodome including a chalcedonic veinlet with finely disseminated marcasite in the far-right piece (above scribe end ...

Authorities emphasized there was no danger to the population, and the pyroclastic flow — a fast-moving mixture of rock fragments, gas and ash — was limited to about 2 kilometers (more than a ...

“The pyroclastic rocks are very dangerous when they are hot, but they contributed to the preservation of many ancient artifacts here, almost like packing material,” he told CNN during a recent ...

Pyroclastic flows occur when volcanic rock, ash and hot gases surge from volcanoes, often following some kind of tremor or disturbance.

A pyroclastic flow – a powerful avalanche of hot rock, ash, and gas – was witnessed on Mount Etna surveillance cameras at around 11:30am local time on Monday, according to Italy’s National ...

The most recent pyroclastic flows with significant reach were recorded on Feb. 10, 2022, Oct. 23, 2021, Dec. 13, 2020, and Feb. 11, 2014, Marco Viccaro, president of Italy’s national volcanology ...

On June 2, at around 11:20 a.m. local time, a giant, superhot avalanche of ash, known as a pyroclastic flow, suddenly exploded from near Mount Etna's summit and raced down its western flank.

Bereaved families and others held a moment of silence at 4:08 p.m. -- the time the pyroclastic flow created by a violent eruption hit the area 34 years ago -- at the Kitakamikoba farming training ...