See images shot by a hiker trapped on the top of Mount Ontake, the Japanese volcano that erupted on Sept. 27.
A new volcanic island growing 600 miles south of Tokyo is still growing, and scientists worry it could collapse and cause a tsunami, or else explode. Continue reading →
If the big volcano, which last erupted 640,000 years ago, were to blow up again, it would spew enough ash to send particles as far away as New York City. Continue reading →
Cauldrons forming near Iceland's Bardarbunga volcano suggest an eruption under the ice has already taken place.
Both can cause widespread human and ecological devastation. But picking a winner in a destruction derby is a tough call.
Earthquakes under Iceland's Bardarbunga volcano prompted the Met Office to raise the volcano's eruption risk level to orange.
A satellite orbiting six miles above the Congo could warn a million nearby residents of an eruption. Continue reading →
The youngest volcanoes on the East Coast share an unusual geological link with islands on the opposite side of the Atlantic Ocean.
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