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    Irazú Volcano

    Stratovolcano · 3,436 m · Costa Rica

    Irazú Volcano
    Photo: Rafael Golan · CC BY-SA 3.0 · Wikimedia Commons

    Irazú Volcano sits on the Panama Plate, in a subduction zone. 31 eruptions are known since the end of the last ice age, the most recent in 1977. Its major eruptions caused at least 55 deaths.

    Elevation
    3,436 m
    Type
    Stratovolcano
    Tectonic Setting
    Subduction zone, continental crust
    Dominant Rock
    Andesite / Basaltic Andesite
    Plate
    Panama Plate
    Country
    Costa Rica
    Last Eruption
    1977
    Known Eruptions (Holocene)
    31
    Max. Explosivity (VEI)
    3
    Known Fatalities
    55

    Eruption Timeline

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

    640 BCE · VEI 3430 · VEI 3690 · VEI 31110 · VEI 31560 · VEI 31723 · VEI 31726 · VEI 21775 · VEI 21821 · VEI 21822 · VEI 21823 · VEI 218261842 · VEI 21844 · VEI 21847 · VEI 21864 · VEI 21875 · VEI 21882 · VEI 21885 · VEI 21886 · VEI 21909 · VEI 219141917 · VEI 31924 · VEI 21928 · VEI 21930 · VEI 21933 · VEI 21939 · VEI 21963 · VEI 3 · deadly eruption1977 · VEI 11994 · VEI 2 VEI 2VEI 4VEI 6 640 BCE1500180019002000

    Eruption Deadly Eruption (NOAA) 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