You asked us, "What will happen if the volcano under Yellowstone erupts?"
It's bubbling just a few miles below the surface of Yellowstone National Park. It's is one of the world's largest active volcanic systems.
Over the last 2 million years or so, it has erupted 3 times in disastrous explosions. It spewed lava and hurtled ash and gases thousands of miles away.
So, what's the likelihood of that kind of super eruption happening again anytime soon?
Not high. Estimates from the U.S. Geological Survey put it at about 1 in 730,000.
What's much more likely is a smaller, less explosive event.
Sure, the lava would still destroy everything in its path. But it'd be relatively slow moving, nothing you couldn't outrun.
Oh, no - lava!
But what if Yellowstone super erupted?
Well, the full impact is hard to predict. But it's pretty safe to say anything or anyone nearby would be done for. In a fiery, doomsday kind of way.
Don't count yourself lucky if you're farther out. That ash cloud could travel huge distances. It could kill crops along the way, disrupt transportation systems, and pollute water supplies. You name it.
If ash and sulfuric gases make it into the atmosphere a global volcanic winter could be sparked. It would cause cooler temperatures and all kinds of horrible snowball effects.
But don't worry. Like I said, it's much more likely we'll be outrunning lava.