Forecasts Possible Yellowstone supervolcano eruption July 18, 2015 Alex This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases. The map below shows what happens if the supervolcano erupts; the exact zones will depend on wind, time of year, and other factors. Related Posts:How the World was Imagined: First Maps and AtlasesThe Best Editions of Monopoly Board GameThe 30 Best Map-Based Strategy Board GamesWhat Mobile Brand Dominates the Market Share in Each…Evolution of United States Standard Time Zone BoundariesHistory of time zones in EuropeMaps of the United StatesThe Best World Map Posters In 2025