Where Volcanoes Are Born Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and ...

The magma that erupts from basaltic volcanoes in the middle of tectonic plates originates from within Earth's mantle — rather than from the outer crust — and is propelled upward by CO2, not water.

Scientists think there are about 1,350 potentially active volcanoes in the world. That’s not counting some of the ones on the ...

Scientists have long wondered how volcanoes formed in central Anatolia despite being far from tectonic plate borders—now they've found evidence of a hot plume of magma flowing from East Africa. Riders ...

For hundreds of millions of years, Earth’s climate has warmed and cooled with natural fluctuations in the level of carbon dioxide (CO₂) in the atmosphere. Over the past century, humans have pushed CO₂ ...

The Earth's mantle might not always move along in lockstep with the overlying tectonic crust—as set out in science textbooks for decades—but may instead behave differently. This is the conclusion of ...

Researchers recently discovered a huge chain of extinct volcanoes buried deep below South China that formed when two tectonic plates collided during the breakup of Rodinia, around 800 million years ...

The ash plume disrupted flights as far away as India.

Deep below the Earth's surface, magma is churning and flowing into the Axial Seamount, an underwater shield volcano about 300 miles off the coast of Oregon. As the volcano grows and tremors increase, ...

As Hawaii prepares for a possible "explosive eruption," confusion has arisen about the relationship between Kilauea and the West Coast's "ring of fire" volcanoes. But experts say there's not cause for ...

A huge volcano hundreds of feet beneath the ocean's surface has started erupting next to the deepest point on Earth. The Ahyi Seamount—a large submarine volcano—lies 449 feet deep in the Pacific Ocean ...

Deep under the Pacific Ocean, more than 300 miles off the Oregon coast, lies a restless underwater volcano known as Axial Seamount. It is the most active submarine volcano in the northeast Pacific and ...