Sinking 1km Undersea Floor During Tonga Volcanic Eruption… ‘Size of 600 Million Dump Trucks’ of Material Moved

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A study has revealed that during the massive 2022 eruption of the Hunga Tonga volcano in the South Pacific, an underwater caldera approximately 5 km wide collapsed vertically by an average of about 1 km almost simultaneously with the eruption. The Korea Polar Research Institute announced on the 14th that it had identified a large-scale "piston collapse" as a result of the Tonga volcanic eruption. The research findings were published in the inter…

asiae.co.kr

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It was found that during the massive eruption of the Hunga Tonga volcano that shook the South Pacific in January 2022, an underwater caldera about 5 km wide collapsed about 1 km downward on average almost simultaneously with the eruption.