Probabilistic assessment of seismic-induced slope displacements: an application in Italy

Abstract Earthquake-induced slope instability is one of the most important hazards related to ground shaking, causing damages environment and, often, casualties. Therefore, it assess seismic performance slopes, especially in near fault regions, evaluating permanent displacements induced by loading. This paper applies a probabilistic approach evaluate slopes using an updated database motions recorded during earthquakes occurred Italy. The main advantage this that accounting for aleatory variability both and prediction seismic-induced slopes. results are presented terms hazard curves, showing annual rate exceedance displacement evaluated motion data provided standard analysis series semi-empirical relationships linking or more parameters. procedure has been implemented on regional scale produce landslide maps Irpinia district, Southern Italy, characterised severe hazard. Seismic represent useful tool practitioners government agencies planning identify monitor zones potentially susceptible earthquake-induced instability, thus requiring further detailed, site-specific studies.