The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.

The ground is still hot atop the crater of Paricutin, the first volcano of its kind to have its life cycle recorded by modern science after its 1943 eruption.

The park’s famous volcanoes draw more than a million visitors each year, making it one of America’s more popular national parks. But even when Kilauea and Mauna Loa aren’t erupting, there ...

Etna is famous for producing lava fountains that have reached over 3,000 feet above the volcano. That isn’t even the record for lava fountains. The 1986 eruption of Izu-Oshima in southern Japan ...

As fascinating as they are for geographers and geologists to study, volcanoes can be hazardous to humans, as well as wildlife. As volcanic eruptions occur, smoke, ash, and lava explode into ...

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.

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

They Loved Volcanoes and Each Other A new documentary examines the work and lives of the French volcanologists Katia and Maurice Krafft, helped mightily by their own magnificent footage. Share ...

Other magma pockets found around the volcano site do not reach the basalt melt below, which means they will likely cool and be unable to erupt. Thumbnail image courtesy of the U.S. Geological ...

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.