240 square kilometers may be big but it will be dwarfed by the next eruption of the Yellowstone cauldera.
This is just something else for liberals/socialists to use to rally supporters.
They've already got doom and gloom from the great global warming hoax.
We live on the earth and things will always happen. If we worry about everything, then we won't enjoy the life we have; and life is too short.
There is no such thing as life without risk, so don't sweat the stuff you can't control, and don't expect to control something that mother nature has been dealing with for eternity.
Well, so much for global warming...LOL