Yellowstone is well overdue for an eruption. I agree with you that my personal chances are small though. No one predicted the Indo earthquake either, which physically shifted the earth’s axis by a small degree. Its actually scary much more than any asteriod or comet hit. These small quakes are well known and could devastate this continent in a matter of hours. MUCH more that any nuclear weapons could do.
Actually now that I think about it if this things goes off what would happen to our ICBMs in the ground?