No Doubt: Mount Redoubt Is Alive!

Thomas Ashley

Lake Clark National Park, Alaska

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Science: One Step Ahead of Mount Redoubt

Active for millennia, Mount Redoubt has erupted five times since 1900: in 1902, 1922, 1966, 1989 and 2009. The eruption in 1989 spewed volcanic ash to a height of 45,000 ft. The volcano is in Lake Clark National Park, Alaska, it is almost five miles wide, and is 9,150 feet tall. While the volcano erupted five times in the past century, some of the eruptions were larger than others. Redoubt is one of the easternmost stratovolcanoes in the Aleutian arc. Redoubt is about 100 miles southwest of Anchorage in the Lake Clark National Park and Preserve. The volcano began erupting about 900,000 years ago. Most eruptions were explosive. About 200,000 years ago the present-day cone of the volcano began to form. The greatest of the five eruptions was in 1989, when Redoubt spewed ash to an altitude of 45,000 feet. In addition, this eruption is notable for being the first ever successfully predicted by the method of long-period seismic events developed by Swiss/American volcanologist Bernard Chouet. Many residents, including thousands in Anchorage, were forced to leave their homes due to the potential negative health impact of volcanic ash. The reasons for these eruptions are not clear, the volcano has been around for a long, long time, and is still active to this day.
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Challenges Abound Living in the Shadow of A Volcano

"The eruption caused Alaska residents to use dust masks and air filters to save their lungs (Heather Bliek)." The volcano has affected the citizens of Alaska in many ways, along with the cost of repair any destroyed buildings near the volcano, they have to purchase a multitude of oxygen filters for their homes to protect them from what can often be lethal fumes. "A 1.8-km-wide, ice-filled summit crater is breached on the north side by a northward-flowing glacier, informally known as the Drift Glacier, which spreads into a piedmont lobe in the upper Drift River Valley" (Miller).

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Works cited

“Alaska’s Mountain, the Redoubt.” Redorbit, 1 July 2009. Web. 22 Apr. 2014. <>. The image shows how redoubt looks when it was cooling down.

MacKeith, Ben M., ed. “Redoubt.” Volcanoworld, 5 Apr. 2013. Web. 22 Apr. 2014. <>. information of the volcano Redoubt. Very useful

MacQueen, P. “Mount Redoubt.” Wikipeida. N.p.: n.p., n.d. N. pag. Wikipedia. Web. 14 Apr. 2014. <>. used to find information on a volcano.