That's the predicted blast radius when Yellowstone finally erupts.
Of course, that could be tomorrow.. or it could be over 100,000 years from now.
Ayup. And by the time New Hampshire has experienced its fourth straight year of famine and plague following volcanic winter (that is IF New Hampshire doesn't get buried in ash at the time of the blast), NH won't be a much better FSP site than Wyoming.
Last time a supervolcano erupted, 75,000 years or so ago, scientists figure it left between 5,000 and 10,000 humans on earth.
With our luck, they'd all be politicians who survived in bunkers while the rest of us froze and starved.
Oh well, what the hell. We takes our chances.
And then there are always those stray comets, asteroids, and meteors the size of football stadiums ...
(Life was really a lot simpler when people thought it was just one nice, flat earth with one nice, stern god hurling thunderbolts at it.)