The ferocious 2021 explosion blew out 2.3 cubic miles of rock, unleashing a 35-mile-high plume and a global tsunami that sent scientists racing to understand the blast. Now they're finally putting together the pieces
which was remotely operated by a team in the United Kingdom. The research efforts scrutinized the region, mapping the seafloor, snapping pictures and taking video, analyzing the water column, and collecting samples of volcanic rock and ash.
Scientists can only speculate about the dynamics of pyroclastic flows under the water, MacKay cautions, because none have been witnessed in person. It’s theorized that as the debris plunges into the sea, the hot ash may vaporize the water to form a gas layer that helps propel the tongue of material across the ocean floor like a Slip ‘N Slide.
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