Check post #48.
(I'm selling my timeshare outside Yellowstone first thing next week.)
I did find some interesting background information HERE. Great pic of Yellowstone falls (which I filched) as well. The bottom line is that yes, Yellowstone could blow tomorrow with no warning or keep us flinching for a millennium. Or it could blow slowly. Or any one of the other dozen or so "hot spots" near the peripheries of the tektonic plates could do the same thing. It's happened before and it will happen again and there isn't a durn thing we can do about it.
But if it does happen, I'm blaming you, disturbing the magma flow with your dang lures and hooks smacking the water all the time.