ABSTRACT
In the landslide risk management process, a fundamental stage of landslide risk assessment is represented by the definition of acceptable and tolerable risk that commonly concern individual, societal and total risks. This chapter deals with the societal risk due to landslides in the Campania Region. Historical research on the landslides in the Campania Region began at the University of Salerno immediately after the flow-like fast-moving phenomena of January 1997 in the territory of Pozzano which caused 5 fatalities. From the whole incident database of local or diffused landslides occurred within the territory of the Campania Region, only the events associated to human life consequences have been taken into account for the analysis carried out in this work. The societal risk due to landslides, for a given territory, can be expressed by plotting the cumulative probability per year F that landslides will cause N or more fatalities versus the number N of fatalities resulting from landslides.
