Mount Spurr has been showing signs of an eruption since last year, but scientists think one is even more imminent.

Scientists fear that a North American volcano may soon erupt. It would be the first time that it has erupted since 1992. Researchers say the volcano appears to be "moving closer to an eruption." ...

This volcanic arc delineates the boundary between the Pacific and North American tectonic plates. A subduction zone, composed of the deep Aleutian Trench coupled with a landward line of volcanoes ...

When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a landscape with incredible geology. She hears a lot of the same suggestions: ...

Arenal Volcano is an active volcano in Costa Rica, which is in the south part of North America. It is famous for an intense eruption period, which lasted from 1968 until 2010 - more than 40 years.

A strong glow from the north vent indicated that lava remained close to the surface of the crater, scientists said. Each time, the volcano has sent lava shooting high into the sky from caldera ...

Six of the majors are named for the continents embedded within them, such as the North American ... de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of ...

Popocatépetl is the second most active volcano in Mexico. In terms of explosive activity and population threat, it ranks highest in Mexico and North America. One of the 10 most-populated volcanoes in ...