They are encouraging everyone in the state to Drop, Cover, and Hold On. If there were a real earthquake, where would you be? At home? In the car? At work? You never know when a real earthquake will hit, so it is a good idea to have your family prepared. Even if you don't live in Utah, you can still participate. This is a great opportunity to improve your earthquake preparedness by practicing with your family. Just sign up on the website below. In the mean time, here is a video they put together to help you understand what it might be like.
Here is the website for the Great Utah Shake Out:
For more resources on Earthquake Preparedness, you can go to http://earthquake.usgs.gov/prepare/ or http://www.ready.gov/earthquakes.