Alaska volcano spews 25,000 feet-high ash plumeApril 1st, 2009 in Earth / Earth Sciences
(AP) -- Observatory officials say Alaska's Mount Redoubt has spewed steam and ash up to 25,000 feet high.
A broad layer of haze that could contain ash has extended from the Matanuska-Susitna Valley north of Anchorage to the Kenai Peninsula.
The eruption prompted Alaska Airlines to cancel 18 flights in and out of Anchorage, which is roughly 100 miles northeast of the volcano.
The volcano has been active since March 23. The last time it erupted was during a four-month period in 1989-90.
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"Alaska volcano spews 25,000 feet-high ash plume." April 1st, 2009. http://phys.org/news/2009-04-alaska-volcano-spews-feet-high-ash.html