or Mount Redoubt’s previous eruptions in Alaska? Mount St. Helens’ devastating 1980 eruption, which killed 47 people, was much more powerful than any of Spurr’s eruptions in recent history ...

Last month, the combined signs of unrest prompted the Alaska Volcano Observatory to warn Southcentral Alaska residents of a likely Mount Spurr ... and two months before Redoubt erupted in 2009.

(CNN)-- In the shadows of Mount Redoubt, Alaskans are calmly waiting ... the state's most populous city, according to the Alaska Volcano Observatory. "We don't have a crystal ball," said Peter ...