Q How do volcanoes form, and how did the volcano of Pompeii show up? — Andrew Vigliotta, Mount Horeb, Wis. A Clifford Thurber, professor of geophysics at the University of Wisconsin-Madison: Some ...

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 ...

Scientists observed a 3.5 inches rise in the ground near the Iranian volcano's summit and it holds clues to its eruption.

A volcano in southern Iran thought to have been extinct for some 710,000 years has stirred. New research published Oct. 7 in ...

These ghostly hoops have been spotted above volcanic events around the world. But how they form has long been a mystery. Mount Etna—located in Catania, Italy—is one of the rare volcanoes that can blow ...

The far side of the moon is hiding evidence of an enormous ancient volcano. But even though researchers are sure the volcano was there, they remain mystified about how it could have formed. For more ...

The Cumbre Vieja volcano, located on the island of La Palma within the Canary Islands of Spain, has been erupting since September. Scientists from around the world are flying into La Palma so they can ...

Some volcanoes, such as the Cascade volcanoes up in Washington and Oregon, are of the type called a stratovolcano. These steep volcanoes sometimes erupt explosively and other times have calmer lava ...