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  2. Feb 21, 2024 · 21 February 2024. Iōjima Island, itself volcanic, sits at the edge of the huge underwater Kikai-Akahoya volcano caldera. The Asahi Shimbun via Getty Images. The largest volcanic eruption of the...

    • Alex Wilkins
    • News Reporter
  3. Feb 29, 2024 · Volcanologists have discovered that an eruption unleashed 7,300 years ago by a volcano in the waters of southwest Japan was the biggest of our current geological epoch 1. Geologists knew that...

  4. Feb 9, 2018 · Feb. 9, 2018. Some 7,300 years ago, a supereruption devastated the southern islands of what is now Japan, burying most of the archipelago in thick ash. Known as the Akahoya eruption, the blast...

  5. Oct 20, 2021 · News. Japan. Volcano. Eruption. NASA. When Was the Last Time Japan's Mount Aso Erupted and How Active Is the Volcano? Published Oct 20, 2021 at 6:03 AM EDT. By Soo Kim. Life & Trends Reporter....

  6. Feb 9, 2018 · Hiroko Sugioka & Yojiro Yamamoto. Scientific Reports 8, Article number: 2753 ( 2018 ) Cite this article. 59k Accesses. 20 Citations. 1276 Altmetric. Metrics. Kikai submarine caldera to the south of...

    • Yoshiyuki Tatsumi, Keiko Suzuki-Kamata, Tetsuo Matsuno, Hiroshi Ichihara, Hiroshi Ichihara, Nobukazu...
    • 2018
  7. Jan 2, 2024 · The largest recorded eruption took place in 1813-14, when thick scoria deposits covered residential areas, and the SW crater produced two lava flows that reached the western coast. At the end of the eruption the summit of Otake collapsed, forming a large debris avalanche and creating an open collapse scarp extending to the eastern coast.

  8. Based on these voyages, researchers have confirmed that a giant lava dome was formed after the underwater volcano erupted 7300 years ago. The dome is in the world’s largest class of caldera, with a volume of over 32 cubic kilometers.

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