Standing at 12,300 feet, Guatemala's Volcan de Fuego is among the most active in Central America and last erupted in June ...

On the morning of May 8, following a powerful explosive eruption, a turbulent cloud of superheated gas and rock fragments called a pyroclastic flow careened down the mountainside at nearly 300 ...

In A.D. 79 a man's brain turned into glass, and researchers now might have an explanation as to how it happened ...

The research team used X-ray imaging and electron microscopy work out that the brain must have been heated to at least 510C ...

Shard found inside a skull at Herculaneum was created as a result of a superheated cloud coming from the volcano, scientists ...

When Mount Vesuvius -- near the modern-day Italian city of Naples -- erupted in 79 AD, the cities of Pompeii and Herculaneum were buried in a fast-moving blanket of rock and ash called a pyroclastic ...

Authorities were monitoring pyroclastic flows — fast-moving currents of hot ash, gas and rock fragments that descend the slopes of a volcano, Conred spokesman Laureano said. The state-run ...