[ROCKLOBSTER]

So what happened last time it erupted. Did it form a mountain or crater.

[DuncanWaring]

Crater.

Look-up “Yellowstone Caldera”.

[jmacusa]

I believe it formed a massive caldera (cauldron) of lava that's the source of the problem. The science on this says that if it were to go good bye to the Southwest, the Midwest and most of the East coast along with a sizable portion of Mexico( could that be all bad?) and Canada too, eh? This is no joke. If the eggheads are correct this will be a really bad day for us. And the resulting cloud of ash and dusk is going to world wide so other countries will be affected by it. They also say the last time this erupted was thousands of year ago when there were animals here and humans hadn't arrived yet and according to the facts this thing is over due to erupt again. Pray.