https://www.vox.com/2014/9/5/6108169/yellowstone-supervolcano-eruption https://www.vox.com/2014/9/5/6108169/yellowstone-supervolcan... Definitely impactful but

https://www.vox.com/2014/9/5/6108169/yellowstone-supervolcano-eruption https://www.vox.com/2014/9/5/6108169/yellowstone-supervolcan... Definitely impactful but not civilization ending.