Eruptions. The ash cooled, coating the engines with glass and restricting air flow. Mount Redoubt, also called Redoubt Volcano, is a volcano in the U.S. state of Alaska.It rises 10,197 feet (3,108 m) above sea level and 9,147 feet (2,788 m) above the valleys around it. It caught KLM Flight 867, a Boeing 747 aircraft, in its plume. Mount Redoubt is an active volcano, having erupted several times in the past century or so. Redoubt is also one of the most active of the Cook Inlet volcanoes. On that December morning 30 years ago, volcanic ash from Mount Redoubt melted inside all four jet engines of that 747. Plume heights were observed at or above 60,000 feet during two of the six significant eruptions. On March 22, 2009, Mount Redoubt volcano, 106 miles southwest of Anchorage, Alaska, began a series of eruptions after persisting in Orange or “Watch” status since late January 2009. It is about 100 miles (160 km) from the city of Anchorage.. On March 22, 2009, Mount Redoubt erupted, sending ash high in the air and covering the mountains around with ash.
As first noticed by WUWT commenter Crosspatch last night, from seismic data, it appears Mt. Looking at this Redoubt webicorder it looks like an eruption of some sort might have started at around 2045UTC. Four additional encounters between jet aircraft and Redoubt ash clouds occurred in the Anchorage area on December 15 and 16, 1989, and February 21, 1990; none resulted in engine failure. Mount Redoubt Volcano In Alaska Erupts Explosively Date: March 23, 2009 Source: U.S. Geological Survey Summary: Alaska's Mount Redoubt Volcano has erupted, spewing ash thousands of feet into the air. Two additional encounters took place on December 17, 1989 when jet airliners encountered the Redoubt … It last erupted in 1989 and 1990, sending a plume of ash into the atmosphere large enough to interfere with air traffic. Redoubt reported activity, including all types of volcanic activity. Redoubt has erupted: Crossptach at 9:41pm. Active for millennia, Mount Redoubt has erupted four times since it was first observed: in 1902, 1966, 1989 and 2009, with two questionable eruptions in 1881 and 1933. At the time, the eruption was one of the costliest eruptions in U.S. history, said Joel Hard, superintendent of Lake Clark National Park and Preserve. It’s … Mount Redoubt west of Kenai erupts an ash cloud on April 21, 1990, during the same unrest that launched the fledgling Alaska Volcano Observatory. The eruption in 1989 spewed volcanic ash to a height of 45,000 ft (14,000 m). Eruptions Mount Redoubt is an active volcano, having erupted several times in the past century or so.
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