Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes.

Though its last eruption was a century ago, California's Lassen Peak is the centerpiece of a volcanic panorama.

Also known as the Circum-Pacific Belt, the Ring of Fire traces the meeting points of many tectonic plates, including the ...

There are different types of volcanoes, and they erupt in different ways. Some may erupt in a blast, while others create widespread flows of lava. Scientists track volcanic activity.

Volcanoes are a powerful force of nature. There are about 1500 active volcanoes on our planet right now. A volcano is an opening in the Earth's crust that allows lava and other volcanic matter to ...

“The four different types of volcanoes found around the world are found in Lassen Volcanic National Park, so people are definitely drawn to that,” said Arreglo.

Volcanic eruptions can have dramatic consequences. But how can we anticipate this phenomenon, which unfolds up to tens of ...

A 2012 astronaut photo shows the striking beauty of Japan's Aso Caldera, a "supervolcanic" structure home to more than a ...