This is an archived article that was published on sltrib.com in 2016, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Nearly 1 million Utahns signed up to "Drop, Cover and Hold On" during this year's edition of the Great Utah ShakeOut, where individual Utahns, businesses, schools, churches and government agencies took part in earthquake preparedness activities. A new forecast from the Working Group on Utah Earthquake Probabilities estimates a 43 percent probability that the Wasatch Fault Zone, along which 80 percent of the state's population lives, will be hit by an earthquake of magnitude 6.75 or greater within the next 50 years.