Quote:
Originally Posted by renormalised
That would be even worse... hundreds of billions of tons of water would flow into the magma chamber as the caldera cracked open. You'd have the mother of all phreatic eruptions, outside of an asteroid hitting the oceans. The tsunamis would smash every coastline in whatever ocean it happened to go off in. What's worse, they'd make the tsunamis that formed during the Krakatoa and Thera eruptions look like pond ripples.
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Wow!
Why is that? I would have thought that if it happened deep in the ocean with all the pressure and the cold water it would just "fizz" quietly?
Are pressure and cold a bad mix with Magma?