ABSTRACT

A monitoring network has been installed to control a landslide affecting Montaldo di Cosola, a small village located in North-Western Italy on the Appennines Mountains. The network includes a raingauge and an Automated Inclinometric System (AIS) that automatically performs measurements twice a day. After the exceptional meteorological events occurred in October 2000, the AIS measured significant movements that have not yet stopped. On the basis of the recorded data it has been possible to locate the sliding surface at a depth of about 13 meters. The movement measurements reveal a good correlation with the rainfalls. In particular a time lag of about 8–9 days has been identified between the occurrence of a rainfall peak and the corresponding peak in the recorded movements. This occurrence might allow the control of future movements of the landslide and the prediction of a possible moment of crisis some time in advance.