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Does a volcano lose height after an eruption?

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SOMETIMES they explode, and that can definitely can cause them to “lose height”. Mt St Helens, Krakatoa, Santorini, etc. Supervolcanoes are a different beast altogether. read more

It depends. VEI 6+ eruptions sometimes form calderas, where the volcano loses all its height (forming a pox-like scar in the earth). Otherwise, volcanoes don't typically lose much height; flows like Kilauea often build height (VEI 0-3ish). read more

Explosive eruption plumes such as those generated at volcanoes like Mt. St. Helens or Pinatubo can reach high into the atmosphere. The highest Mt. St. Helens plume on May 18, 1980 reached about 31 km (101,700 feet), and the highest Pinatubo plume got as far as 45 km (147,600 feet). read more

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