It's no reach to say that the ecosystem of Yellowstone National Park is one of the most dynamic and interesting in the world. It's a constantly changing environment that is not short on mystery. One of the biggest questions in the park over the past several years is why did Steamboat Geyser reawaken. A new study attempted to solve the mystery, but the conclusion is they still don't know.
If you have even a vague interest in what makes Yellowstone tick, you have to check out a brand new interactive map that lets you view the many geological systems of the park.
It wasn't a super shaker, but there was a significant earthquake in the Tetons today that many reported feeling. The USGS has confirmed this quake did happen.
It's not breaking news (no earthquake pun intended) that Yellowstone has a lot of earthquakes. But, even by the normal high standards, the USGS has confirmed there were a lot of earthquakes near the park in May alone.