If Yellowstone erupted it would be horrible because thousands of people would die, and the thing that it affects is the ash because it will be bad for you to breath that air. Also an other bad thing is that the ash is really heavy and it will the roof of the house will collapse as we saw in the the movie six inches or more of ash will make your roof collapse. Also almost half of million people died in the movie and at the end of the movie the Yellowstone volcano caused an ice age. I think if actually erupted less people would die because in the movie the specialist did not let the people know that it was going to erupt so it absolutely did not give them time to evacuate
