Water-related disasters most perceived by the public are those caused by large-scale riverine floods. There is evidence, however, that the most deadly events, which are driven by extreme precipitation, are those that are difficult to predict, such as debris flows and landslides, which have 

a spatially limited character and can occur far away from major rivers; they occur mostly in mountainous areas. The primary objective of this document, therefore, is to provide a tool to introduce approaches in 

identifying debris flows and landslide areas as well as to show how they can be managed successfully to minimize the loss of life.