Mt RedoubtANCHORAGE, Alaska — Monitors say Alaska's Mount Redoubt volcano has erupted again with an ash plume shooting about 15,000 feet high.
The blast shortly after 5 a.m. The plume appeared to be drifting north to northwest.
The 10,200-foot volcano, about 100 miles southwest of Anchorage, erupted six times in less than 24 hours Sunday and Monday, with ash plumes shooting up to 60,000 feet, more than 9 miles into the air in the volcano's first emissions in nearly 20 years.
Ash from Alaska's volcanos is like a rock fragment with jagged edges and has been used as an industrial abrasive. It can injure skin, eyes and breathing passages. The young, the elderly and people with respiratory problems are especially susceptible to ash-related health problems. Ash can also cause damage engines in planes, cars and other vehicles.
Alaska Airlines on Monday canceled 19 flights because of the ash. In-state carrier Era Aviation canceled four, and Elmendorf Air Force Base in Anchorage kept 60 planes, including fighter jets, cargo aircraft and a 747 commercial plane, in shelters.
The first eruption, in a sparsely populated area across Cook Inlet from the Kenai Peninsula, occurred at 10:38 p.m. Sunday. The sixth happened happened at 7:41 p.m. Monday, according to the Alaska Volcano Observatory.
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