If the theory is proven correct, the consequences could be enormous, spelling a much more risky, explosive future.

Volcanoes that dominate postcards and disaster movies are often the ones we can see, their peaks etched against the sky. Yet ...

When thinking of the world's most dangerous volcanoes, I am sure you imagine the largest of them. When thinking of something dangerous, I expect it to be large, or at least well-known. However, ...

In the 1780s, the volcano rumbled to life with such force that it sent high-speed avalanches of hot rock, gas and ash down its slopes. Those flows quickly melted the snow and ice and mixed with the ...

Indonesia on Thursday raised the danger alert level for an erupting volcano that sparked a killer tsunami at the weekend, after previously warning that fresh activity at the crater threatened to ...

When individuals hear volcanoes, they tend to envision blazing eruptions blasting into the air. However, volcanoes can also collapse sideways, with their sides, or flanks, collapsing. Such a collapse ...

Washington state may not have to worry about hurricanes, but it is volcano country. The United States has 161 active volcanoes – all in the western U.S. – but only 18 are classified as a "very high ...

A deadly volcano in Indonesia spewed another searing cloud of ash down its slopes Sunday, prompting panic and chaos among thousands of villagers who had taken advantage of a lull in activity to rush ...