America’s first national park is home not only to some of the world’s most stunning natural landscapes but also to some of the most hostile environments on the planet. Of these hostile environments, researchers have become quite worried about one specific terrifying natural phenomenon that is raising concerns over the stability of the volcano and the future of the park.
Over the past couple of days Yellowstone has been hit by an earthquake “swarm”, or series of earthquakes, the largest of which measured 4.5 on the Richter scale. But it’s not so much the earthquakes themselves that have scientists on alert, it’s that these earthquakes are a sign of something much bigger.
Here’s the Background Story
Supervolcanos, sometimes called “Calderas” are formed after massive eruptions spew incredible amounts of magma into the air and the ground around the eruption site, trapping the remainder of the magma in an underground chamber. The caldera in Yellowstone was formed after three major eruptions beginning over two million years ago.