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Mount Veniaminof

Mount Veniaminof is a large stratovolcano in Alaska that suffered a huge eruption some 3,700 years ago. The eruption formed a caldera with a diameter of almost 6 miles (10 km) and filled with ice and snow. All recent eruptions have taken place from a cinder cone that pokes up through the ice in the caldera. Eruptions occurring in 1983-84 and June, 1993-present have consisted of fountaining at this cinder cone. Lava flows down the sides of the cone and onto the ice surface where it then melts its way down through to the bottom of the caldera, forming a lake.

Last updated: February 01, 2005.

 
 
Wikipedia: Mount Veniaminof
Mount Veniaminof
MountVeniaminof.jpg
Steam rising from the intracaldera cinder cone at Veniaminof volcano in the waning stages of the 1983 to 1984 eruption.
Elevation 8,225 feet (2,507 m)
Location Alaska, USA
Range Aleutian Range
Prominence 8,199 ft (2,499 m)[1]
Coordinates 56°11′53″N, 159°23′27″W
Topo map USGS Chignik A-5
Type Stratovolcano with a summit caldera
Last eruption 2006

Mount Veniaminof is an active stratovolcano located on the Alaska Peninsula. The Alaska Volcano Observatory currently rates Veniaminof as Aviation Color Code Green and Volcano Alert Level Normal. The mountain was named after Ioann (Ivan Popov) Veniaminov (1797-1879), a Russian Orthodox missionary priest whose writings on the Aleut language and ethnology are still standard references.

The volcano was the site of a colossal (VEI 6) eruption around 1750 BC. This eruption left a large caldera. In modern times the volcano has had numerous small eruptions (over ten of them since 1930); these are located at a cinder cone in the middle of the caldera.

Veniaminof has one of the highest elevations of Alaskan volcanoes. Partly for this reason, it is covered by a glacier that fills most of the caldera. Because of the glacier and the caldera walls, there is the possibility for a major flood from a glacier run at some point in the future.

Map showing volcanoes of Alaska Peninsula.
Enlarge
Map showing volcanoes of Alaska Peninsula.


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