Researchers traced tremor signals deep inside Tanzania’s Oldoinyo Lengai volcano, pinpointing their 3D locations for the ...

How do volcanoes function beneath their rocky surfaces? What drives the rumbling vibrations, called tremor, that occur when molten rock or gases ...

A "zombie" volcano in Bolivia has been rumbling in its sleep — despite being dormant for hundreds of thousands of years — and scientists now think they know why. Uturuncu, located in the Andes in ...

Researchers at Mainz University identified volcanic tremors caused by the movement of magma. What really happens inside a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Can a volcano rise ...

After lying dormant for an astonishing 700,000 years, Iran’s Taftan volcano is stirring. Recent observations suggest that ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Things are heating ...

An underwater volcano off the Oregon coast could erupt late this year, scientists say. The volcano, known as Axial Seamount, is more than 4,900 feet beneath the Pacific Ocean and 300 miles off the ...

A volcano on Russia’s far eastern Kamchatka Peninsula erupted overnight into Sunday for what scientists said is the first time in hundreds of years, days after a massive 8.8-magnitude earthquake. The ...

A volcano on Russia's far eastern Kamchatka Peninsula erupted overnight into Sunday for the first time in at least 400 years. The Krasheninnikov volcano sent ash more than 3.7 miles into the sky, ...