A landslide in Yosemite National Park on Wednesday damaged three cars in the parking lot of the Ahwahnee Hotel and left rocks, one the size of two SUV’s in the parking lot. Park officials evacuated the hotel as a precaution but no injuries were reported. Story at FresnoBee.com via USGS Recent Landslide Page. (Photo by Erik Skindrud, National Park Service)
The Utah Geologic Survey has released a "Landslide Susceptibility Map of Utah". They apparently relied quite heavily on GIS based thresholding of existing slope angles but only after they had statistically analyzed failure angles for particular geologic units. So it sounds like they throw the known landslides, the geologic map of Utah and a DEM into the GIS a blend it all up. Perhaps a slight oversimplification!