Though volcanologists study all types of volcanoes, the latter kind is of ... Popocatepetl, and Mt. Redoubt—as well as many other famous volcanoes, including Mt. St. Helens and Mt.

Anchorage, Alaska (CNN)-- It's 3 degrees and snowing outside the Alaska Volcano Observatory in Anchorage, but inside the operations center, things are heating up. "This is kind of the nerve center ...

(CNN)-- The Anchorage, Alaska, airport reopened Sunday afternoon after being closed after an eruption of a nearby volcano on Saturday. Ash from Mount Redoubt fell around the city, Alaska's largest ...