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Mount Pavlof or Pavlof Volcano is a stratovolcano of the Aleutian Range on the Alaska Peninsula. It has been one of the most active volcanoes in the United States since 1980, with eruptions recorded in 1980, 1981, 1983, 1986–1988, 1996–1997, 2007, 2013, twice in 2014, 2016, and again in 2021-2022. [2][3][4][5][6] It is not currently ...
Map showing volcanoes of Alaska Peninsula. Katmai caldera before and after surveys of 1908 and 1951. Mount Katmai is one of five vents encircling the Novarupta volcano, source of the VEI 6 eruption and associated voluminous pyroclastic flows in 1912. Katmai consists chiefly of lava flows, pyroclastic rocks, and non-welded to agglutinated air fall.
Mount Spurr. Mount Spurr (Dena'ina: K'idazq'eni) is a stratovolcano in the Aleutian Arc of Alaska, named after United States Geological Survey geologist and explorer Josiah Edward Spurr, who led an expedition to the area in 1898. The Alaska Volcano Observatory (AVO) currently rates Mount Spurr as Level of Concern Color Code Yellow. [1]
Mount Cleveland is located 490 km (304 mi) from the western end of the Aleutian Arc, [4] a long volcanic chain extending off the coast of Alaska. Containing over 75 volcanoes, [5] this volcanic arc occurs above the subduction zone where the Pacific Plate plunges under the North American Plate.
Augustine Volcano. Augustine Volcano (Sugpiaq: Utakineq; [3] Dena'ina: Chu Nula) is a stratovolcano in Alaska consisting of a central complex of summit lava domes and flows surrounded by an apron of pyroclastic, lahar, avalanche, and ash deposits. The volcano is frequently active, with major eruptions recorded in 1883, 1935, 1963–64, 1976 ...
Aniakchak 3D. Mount Aniakchak (Russian: Аниакчак) is a volcano on the western Alaska Peninsula. Part of the Aleutian Volcanic Arc, it was formed by the subduction of the oceanic Pacific Plate under the North American Plate. Aniakchak is a 10 kilometers (6.2 mi) wide caldera with a break to the northeast.
The Aleutian Arc reflects subduction of the Pacific plate beneath the North American plate. It extends 3,000 km (1,900 mi) from the Kamchatka Peninsula in the west to the Gulf of Alaska in the east. The arc was formed around 55 million years ago during the early Eocene period. [3][2] Unimak Pass at the southwestern end of the Alaska Peninsula ...
The Alaska Volcano Observatory (AVO) is a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). [3] AVO was formed in 1988, and uses federal, state, and university resources to monitor ...