Several videos circulating online show people running as smoke from the side of Mount Etna filled the air on June 2.

The lava flows and ash clouds were probably caused by the collapse of a flank of Etna’s southeast crater, authorities said, ...

Igneous rock is formed by the cooling of molten rock, either at the surface (lava), or underground (as granite or other similar rocks). The heat of molten rock usually incinerates organisms rather ...

Lava can be seen pouring out of the volcano on the wintry February day, while lava that had cooled into rock can be heard ... Italy’s Mount Etna erupts in background ...

In 1669, in what has been considered the volcano’s worst known eruption, lava buried a swath of Catania, about 23 kilometers ...

Italy's Mount Etna erupted early Monday, causing tourists to flee as it spewed a massive plume of hot volcanic debris into ...

Etna is one of the world's most active "stratovolcanoes;" these are cone-shaped volcanoes, built up by alternating layers of lava and erupted rock fragments, that are characterized by explosive ...

I usually opt to hike here, where Black Rock slices through a forest dotted with ponderosa pines to one side, and to the other, a sprawling, 6,000-acre lava flow, formed by, yes, lava that once ...

A massive eruption occurred at Mt. Etna on the Italian island of Sicily, producing a plume of high temperature gases, ash and ...

The snowboarder in the videos cruised down patches of snow while, in the background, a river of lava bubbled ... He warned that when the lava meets the snow, it can fling rocks due to the release of ...

lava grains, volcanic ash, and rock fragments of various sizes that rapidly descends down the slopes of the volcano.” ...

It was all about the black lava rock that flowed around the edge of nearly every green and fairway, presenting a test that most tour players hadn’t seen before. MORE: The improbably story of the ...