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    Volcano

    Ata

    Caldera · 924 m · Japan

    Ata
    Photo: alpsdake · Public domain · Wikimedia Commons

    Ata sits on the Okinawa Plate, in a subduction zone. 27 eruptions are known since the end of the last ice age, the most recent in 885.

    Elevation
    924 m
    Type
    Caldera
    Tectonic Setting
    Subduction zone, continental crust
    Dominant Rock
    Andesite / Basaltic Andesite
    Plate
    Okinawa Plate
    Country
    Japan
    Last Eruption
    885
    Known Eruptions (Holocene)
    27
    Max. Explosivity (VEI)
    5

    Nearby Cities

    Cities of more than 20,000 people within 100 km.

    Eruption Timeline

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

    5,050 BCE2,690 BCE · VEI 52,010 BCE · VEI 41,780 BCE · VEI 41,610 BCE · VEI 31,550 BCE1,500 BCE · VEI 41,450 BCE700 BCE · VEI 2650 BCE · VEI 4270 BCE · VEI 480 BCE · VEI 430 · VEI 3130 · VEI 4150 · VEI 4270 · VEI 3550 · VEI 2600 · VEI 4660 · VEI 4720 · VEI 4770 · VEI 4860 · VEI 2866 · VEI 2874 · VEI 4882 · VEI 2885 · VEI 41615 VEI 2VEI 4VEI 6 5,050 BCE1500180019002000

    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