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    Trident Volcano

    Stratovolcano · 1,864 m · United States of America

    Trident Volcano
    Photo: R. McGimsey, U.S. Geological Survey · Public domain · Wikimedia Commons

    Trident Volcano sits on the North American Plate, in a subduction zone. 15 eruptions are known since the end of the last ice age, the most recent in 1974.

    Elevation
    1,864 m
    Type
    Stratovolcano
    Tectonic Setting
    Subduction zone, continental crust
    Dominant Rock
    Andesite / Basaltic Andesite
    Plate
    North American Plate
    Country
    United States of America
    Last Eruption
    1974
    Known Eruptions (Holocene)
    15
    Max. Explosivity (VEI)
    3

    Eruption Timeline

    Each bar is an eruption; its height shows its explosivity (VEI 0 to 8).

    1913 · VEI 119491950 · VEI 21953 · VEI 31956 · VEI 21957 · VEI 21961 · VEI 21962 · VEI 31963 · VEI 31963 · VEI 31964 · VEI 31966 · VEI 01967 · VEI 31968 · VEI 31974 · VEI 3 VEI 2VEI 4VEI 6 14991500180019002000

    Eruption Uncertain Date

    Sources : Global Volcanism Program, 2026. Volcanoes of the World (v. 5.4.0; 7 Aug 2026), Smithsonian Institution, doi:10.5479/si.GVP.VOTW5-2026.5.4 (volcano.si.edu) · NOAA NCEI · USGS · Wikidata