Bigger question: How many cow farts, oil storage depots and ammo depots does it take to equal one Mount Tambora VEI=7? Clue ... 100 times more than St Helens.
Bigger still how many Mount Tambora VEI =7 eruptions does it take to equal 1 Yellowstone eruption VEI 10?
Yeah the next Yellowstone is going to be a doozie.