We get a lot of earthquakes in Wyoming. Most are near the very seismically active area near Yellowstone. That's why it was a bit of a surprise to learn that an earthquake just occurred in southern Wyoming near Saratoga.
I doubt that even the pronghorn that were grazing right above this were aware that anything happened, but there was a minor earthquake west of Casper Sunday morning.
Earthquakes at Yellowstone National Park are really no big deal. They happen all the time, but a recent rapid fire earthquake swarm near Lewis Lake was a little weird.
The USGS recently updated their volcano threat assessment for the first time in 14 years. They now list the Yellowstone super-volcano as a moderate threat.