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Archipelago

    Amukta

    Amukta Island

    52°29′N 171°16′W

    7-km-wide Amukta Island (Amuux̂tax̂ in Aleut). It is the westernmost of the Islands of Four Mountains chain. The nearest islands to it are Yunaska and Seguam Island; it is separated from Seguam Island by Amukta Pass.

    Mount Amukta, Alaska, USA
    Mount Amukta, Alaska, USA

    F. Deines / Public domain

    Terrain

    52°29′N 171°16′W

    Terrain exaggerated for relief. Drag to look around.

    Overview

    The undissected stratovolcano of Amukta volcano makes up most of nearly circular, 7.7-km-wide Amukta Island (Amuux̂tax̂ in Aleut). It is the westernmost of the Islands of Four Mountains chain. The nearest islands to it are Yunaska and Seguam Island; it is separated from Seguam Island by Amukta Pass. The cone, about 5.8 km in basal diameter and topped by a 0.4 km wide summit crater, appears on synthetic-aperture radar imagery to be built upon a 300+ meter high, east-west trending arcuate ridge. Extensions of that ridge on the southwest and east sides of the island indicate an older caldera approximately 6 km in diameter and open to the sea on the south side. No hot springs or fumaroles have been reported from Amukta. Sekora (1973, p. 29) reports the presence of a cinder cone near the northeastern shore of the island.

    From Wikipedia, CC BY-SA 4.0

    Chart

    Nearest islands

    Also in Andreanof Islands

    Also in Aleutian Islands

    Also in Pacific Islands

    • New Guinea

      774,566 km²▲ 4,884 m

      Major islands

    • Japan

      377,974 km²

      Major islands

    • New Zealand

      268,021 km²

      Major islands

    • Honshu

      227,970 km²▲ 3,776 m

      Major islands

    • Luzon

      104,935 km²▲ 2,928 m

      Major islands

    • Mindanao

      93,885 km²▲ 2,954 m

      Major islands

    • Hokkaido

      77,983 km²▲ 2,291 m

      Minor islands

    • Sakhalin

      74,571 km²▲ 1,609 m

      Minor islands

    Also in Islands of Four Mountains

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Talus
    • Wikidata
    • Wikipedia

    Photographs