Shortly after the eruption I was seeing estimates of 100--150MT thrown around; bigger than Tsar Bomba, smaller than Krakatoa. Edit: the Mount St. Helens erupti

Shortly after the eruption I was seeing estimates of 100--150MT thrown around; bigger than Tsar Bomba, smaller than Krakatoa. Edit: the Mount St. Helens eruption was about 25 MT total energy released.