Super Volcano!

Scientists eye unusual swarm of Yellowstone quakes: "Yellowstone National Park was jostled by a host of small earthquakes for a third straight day Monday, and scientists watched closely to see whether the more than 250 tremors were a sign of something bigger to come."

We are all geography Geeks now.

How about "What is the largest island in a lake on an island in a lake on an island?" (link)