In Costa Rica, A Restless Volcano Stirs

The increasingly active Turrialba volcano in Turrialba, Costa Rica erupted three times Thursday (including the one pictured here), followed by a smaller burst on Friday. Costa Rica's main airport in San Jose was briefly closed, and schools near the volcano suspended classes. » 3/14/15 4:30pm 3/14/15 4:30pm

Ask a volcanologist anything you want to know about volcanoes!

Volcanoes! Whether we're talking about Pompeii, why some volcanoes in Indonesia are erupting with blue lava, or the mechanics of supervolcanoes, they're totally fascinating. Today, we have a volcanologist in to answer your questions about volcanoes, eruptions, and their aftereffects. » 2/24/14 9:10am 2/24/14 9:10am

A major step to predicting when supervolcanoes will explode

Scientists have learned that massive caldera volcanoes, like the one stewing beneath Yellowstone, are ruled by geological processes far different than the ones governing conventional volcanoes. These massive reservoirs of magma can explode spontaneously — an important piece of insight that can help us predict a future… » 1/06/14 2:20pm 1/06/14 2:20pm

New Type of Volcanic Eruption Produces Globs of Floating Molten Foam

A recent paper published in Nature Geoscience has proposed the existence of an entirely new kind of volcanic eruption, which geologists are now calling a 'tangaroan' eruption. Rather than being either explosive or effusive, this newly documented type of eruption involves the slow release of magma that generates a… » 1/23/13 10:53am 1/23/13 10:53am

Watch a Japanese volcano explode into its biggest eruption since 1959

This is the most fiery moment the Kirishima volcano group has experienced since 1959 — the eruption, starting yesterday, sent a plume of ash 1,500 feet into the air. More insane volcano footage below. » 1/27/11 5:30pm 1/27/11 5:30pm

The fury of Mount Etna reawakened

Mount Etna is one of the most beautiful peaks in the Mediterranean — but it's as deadly as it is beautiful. Check out this picture of lava coating the slopes and ash spurting into the sky. Photo by AP. » 1/15/11 12:53pm 1/15/11 12:53pm

Indonesian volcano erupts for the first time in over 400 years

Scientists were caught by surprise when Indonesia's Mount Sinabung suddenly erupted over the weekend, and an even stronger eruption on Monday sprayed soot and debris more than a mile into the air. Plumes of white smoke continue to pour out. » 9/01/10 9:00am 9/01/10 9:00am