Mount Kaguyak

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Mount Kaguyak
Lake filled caldera of Kaguyak, August 1982.
Elevation 2,956 ft (901 m)
Location Katmai National Park and Preserve, Alaska Peninsula, U.S.
Range Aleutian Range
Coordinates 58°36′28.8″N 154°1′40.8″W / 58.608000°N 154.028000°W / 58.608000; -154.028000
Type Stratovolcano
Volcanic arc/belt Aleutian Arc
Last eruption 3850 BCE

Mount Kaguyak is a stratovolcano located in the northeastern part of the Katmai National Park in Alaska. The 2.5 km wide caldera is filled by a more than 180 m deep crater lake. The surface of the crater lake lies about 550 m below the rim of the caldera. Postcaldera lava domes form a prominent peninsula in the center of the lake. The volcano is 901 m high and hosts a spectacular view because it rises from lowland areas near sea level in the south of the Big River. Based on radiocarbon dating the caldera-forming eruption occurred about 5800 years before present.[1] During this eruption at least 120 square kilometers were covered in a dacitic ignimbrite.[2]

Map showing volcanoes of Alaska. The mark is set at the location of Mount Kaguyak

See also[edit]