Geomorphological of Places and Hydrogeological Risk

The landscape of the peri-adriatic belt of Central Italy is characterized by a hilly relief engraved in the badrock in the prevailing clay component of Plio-Pleistocene. It is dissected, in the direction approximately E-W, from terraced river valleys on which areas of the watershed are located many urban centers of the Middle Ages. These historical urban centers appear to be particularly vulnerable to the mass movements; this situation is far more common in older urbanization territories, because they are attacked by the upstream regression of the phenomena which are generally activated at lower altitude.