Few volcanoes on Earth boast the fantastical title of "supervolcano," but what makes these uber volcanoes so super, and is the superlative always justified? It very much depends on who you ask. A ...

Supervolcanoes are defined by their ability to produce supereruptions — explosions of more than 240 cubic miles of volcanic material. But scientists disagree on how useful the term is. When you ...

Some scientists think we can better understand volcanoes by learning how the gaseous vortexes emerge. By Carolyn Wilke Some volcanoes perform a rather subtle trick: blowing rings of vapor that waft ...

One of the most dramatic events on earth is volcanoes. But why then are they suddenly to burst open and pour lava, ash and gas? The answer lies somewhere deep in our planet. Volcanoes are found when ...

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 ...