Rainfall and Senerchia landslides (Southern Italy)

The aim of this work is to highlight the influence exerted by meteoric events on landslide triggering. Taking into account the main geomorphological and hydrogeological features at the mass movements, simple hydrological/statistical methods are suggested. Cumulative daily rainfalls over 1 to 180 days are studied to determine probability distribution functions. Hence the critica1 rainfall period is determined for a specific landslide and the return period of the hydrological event associated with the landslide is quantified.