The shaking has continued in Salt Lake City since the major earthquake on March 18. There are reports they've had over 600 quakes in the last two weeks alone.
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.