How a volcanic circulate strikes alongside the seafloor

Scientists modelling January's dramatic volcanic eruption at Tonga have modelled particles flows on the Pacific seafloor. huge volumes of rock and ash ran out throughout the ocean bottom surrounding the Hunga-Tonga Hunga-Haʻapai seamount. This simulation shows the paths of these pyroclastic density currents, which reached tens of kilometres from the volcano.

Video courtesy of Dr Emily Lane at New Zealand's countrywide Institute of Water and Atmospheric analysis.

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