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Three separate teams working independently have learned more about what happens during a slow-moving volcanic caldera collapse by studying the 2018 Kīlauea eruption in Hawaii. Each has published their findings in the journal Science. Freysteinn Sigmundsson with the University of Iceland has published a companion piece in the same journal issue giving an overview of caldera collapse, and outlining the work by the three teams.
Caldera collapse occurs when the crater formed after a volcanic eruption collapses down into the ground below it. In the case of the Kīlauea eruption, the collapse involved drainage of the lava lake that was sitting in its crater—many described it as looking like a bucket of water draining into a hole in its bottom. Some calderas collapse quickly, while others collapse slowly. In the case of the Kīlauea eruption, the collapse occurred over a three-month span, giving scientists ample time to study it in detail.
Studies - Researchers - Institutions - US - Japan—in
All three studies were carried out by researchers from institutions across the U.S. and two in Japan—in the first, a group from the U.S. Geological Survey reported that the eruption led to the collapse...
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