Volcanoes of the Aleutian Islands (Alaska): Information

Volcano list

Akutan

(Stratovolcano 1303 m / 4,275 ft)

Akutan volcano is one of the most active stratovolcanoes of the Aleutian arc. The volcano has a 2-km-wide caldera with an active intracaldera cone. [more]

Atka

(Stratovolcanoes 1451 m / 4,760 ft)

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Bogoslof

(Submarine volcano 150 m / 492 ft)

Bogoslof Island in Alaska with the eroded remnants of Castle Rock lava dome from the 1796 eruption (image: Ann Harding/AVO USGS)

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The beautifully symmetrical Mount Cleveland stratovolcano forms the western half of the uninhabited Chuginadak Island in the central Aleutians, connected to the eastern half of the island by a narrow isthmus. It is one of the regions most active volcanoes, but at present has no s... [more]

Davidof

(Stratovolcano 328 m / 1,076 ft)

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Fisher

(Stratovolcano 1112 m / 3,648 ft)

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Gareloi

(Stratovolcano 1573 m / 5,161 ft)

Gareloi volcano from the webcam on 8 June 2021

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Gilbert

(Stratovolcano 818 m / 2684 ft)

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Great Sitkin

(Stratovolcano 1740+ m / 5,709 ft)

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Herbert

(Stratovolcano 1280 m / 4,199 ft)

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Isanotski

(Stratovolcano 2446 m / 8,025 ft)

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Kagamil

(Stratovolcano 893 m / 2,930 ft)

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Kanaga

(stratovolcano 1307 m / 4,288 ft)

Kanaga Volcano Viewed from the west with Mt Moffet, Adak and Great Sitkin in the background (image taken May 8, 2010 by Cyrus Read, AVO/USGS)

Kanaga volcano is an active symmetrical stratovolcano rising 1300 m on the northern part of Kanaga Island in the western Aleutians, Alaska. It is one of the most southerly volcanoes of the central Aleutian chain.
The volcano has a small 200 m wide and 60 m deep circular sum... [more]

Kasatochi

(Stratovolcano 314 m / 1030 ft)

Satellite image of Kasatochi volcano (c) Google Earth View

Kasatochi is a remote island forming the peak of a mostly submerged stratovolcano rising to 314 m a.s.l. in the Aleutian island chain. It is one of the volcanoes in the world that formed new islands in historic times. [more]

Kiska

(Stratovolcano 1220 m / 4,003 ft)

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Koniuji

(Stratovolcano 273 m / 896 ft)

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Korovin

(Stratovolcano 1533 m / 5030 ft)

Korovin is a 1533 m high stratovolcano in the central Aleutian Islands and one of the most active volcanoes in Alaska. On average, it has been active every 10-15 years, its last eruption being in Nov-Dec 2006 with ash emissions. [more]

Little Sitkin

(stratovolcano 1174 m / 3,852 ft)

Little Sitkin volcano forms a small island of the same name in the western Aleutians Islands and belongs to the Aleutian Island National Wildlife Refuge. The active stratovolcano rises 1188 m (3898 ft) in the center-northeastern part of the island. The island is located 330 km (2... [more]

Makushin

(Stratovolcano 1800 m / 5,905 ft)

Makushin volcano is an ice-covered 1800-m-high stratovolcano on northern Unalaska Island west of the town of Dutch Harbor. The volcano contains a 2.5-km-wide caldera. Its broad, domical shape contrasts with the usual steep-sided profile of most other volcanoes in the Aleutians. [more]

Moffett

(Stratovolcano 1196 m / 3,924 ft)

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Okmok

(Central shield complex with nested caldera 1073 m (3520 ft))

Okmok is one of the most active volcanoes in the Aleutian island chain (Alaska). It consists of a complex of shields truncated by a caldera and several active vents inside the caldera, which have built small cones and lava flows. [more]

Recheschnoi

(Stratovolcano 1984 m / 6,509 ft)

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Roundtop

(Stratovolcano 1871 m / 6,138 ft)

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Seguam

(Stratovolcanoes 1054 m / 3,458 ft)

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Segula

(Stratovolcano 1160 m / 3,806 ft)

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Semisopochnoi

(Stratovolcano 1221 m / 4,006 ft)

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Sergief

(Stratovolcano 560 m / 1,837 ft)

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Shishaldin

(Stratovolcano 2857 m / 9,373 ft)

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Table Top

(Pyroclastic cone 792 m / 2598 ft)

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Takawangha

(Stratovolcano 1449 m / 4,754 ft)

Snow-clad Takanangha volcano on Tanaga Island (image: Loewen, M. W. via AVO / USGS)

Takawangha is a 1449-m-high, young stratovolcano on northern Tanaga Island near the western end of the Andreanof Islands in the Aleutian arc. It is capped by an ice-filled summit caldera.
Due to its remoteness, there are no historical observations of activity, but radiocarb... [more]

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Volcanoes of the Aleutian Islands (44)

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