ABSTRACT

On May 5th, 1998, more than 300 soil slide – debris flows originated in the Quindici territory, and moved downslope along pre-existing drainage ways, killing 11 people and destroying or severely damaging some tens of houses. The mass movements resulted from failure of Late Quatemary-Holocene shallow pyroclastic cover, resting on Mesozoic carbonatic bedrock. The preliminary results deriving from landslide inventory of the 1998 slope failures are here presented: following identification, surveying and mapping of the soil slide – debris flows, local geologic, geomorphologic and morphometric characters are described. Moreover, some considerations are presented concerning the role of man-made cuts and roads in the development of the slope movements.