Geologic hazards such as earthquakes and landslides pose threats to communities in Kentucky. Landslides in particular cause millions of dollars in damage each year. Developing and implementing mitigation measures are the most effective ways to abate the impact of these hazards on communities. Earth scientists play important roles in the development and implementation of mitigation measures by providing the scientific basis—hazard maps in particular. It is critical that hazard maps be produced with the best science, but also that the meaning of the maps, as well as the associated uncertainties, be clearly and understandably communicated to the users and decision makers. The Kentucky Geological Survey (KGS) studies earthquakes and landslides and produces appropriate hazard maps that can be used by communities to develop mitigation measures. Furthermore, KGS works closely with communities and state agencies to help them understand and use the hazard maps.