POST-LGM CATASTROPHIC LANDSLIDES IN THE DOLOMITES: WHEN, WHERE AND WHY

This paper aims to present the state-of-the-art about large and catastrophic landslides that have occurred in the Dolomites since the Last Glacial Maximum (LGM). Such events have been proved to happen multiple times in the same area, in correspondence of prolonged rainfall events, ice/snow melting and seismic shakings. Predisposing factors, such as rock fracturation and vertical bedding strata, may accumulate rock fatigue and induce the formation/weathering of shear planes, weakening the rock mass and allowing low-magnitude events to trigger the movement.