Sunset Crater, located in north-central Arizona, is the youngest volcano found on the 130,000-square-mile (337,000 square kilometers) Colorado Plateau. In 1930, the Sunset Crater Volcano National ...

More than 1,400 volcanoes are scattered across the southwestern United Statse. At least three erupted in the past 1,000 years. The U.S. Geological Survey ranks volcanoes or volcanic fields with ...

The Hawaii Board on Geographic Names announced its approval Thursday of Ahu‘aila‘au as the name for Kilauea’s fissure 8. The Hawaiian name refers to the altar of the volcano deity ‘Aila‘au. A view of ...

Volcanic cones are among the simplest volcano formations. They are built by fragments (called ejecta) thrown up (ejected) from a volcanic vent, piling up around the vent in the shape of a cone with a ...