fromwww.thehistoryblog.com
4 days agoThe History Blog
Then the wind changed and the great pillar of ash and smoke collapsed, unleashing a pyroclastic surge of boiling gases and ash at temperatures exceeding 800F that engulfed the town. Everyone there was killed instantly and wood was carbonized on the spot. Herculaneum was then hit by six floods of volcanic mud, one after the other, burying under 70 feet of sludge. The mud quickly cooled and hardened into solid rock,
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