Rainfall-induced slope instabilities in coarse-grained soils represent a major threat for elements at risk in piedmont areas. To succeed in the challenge of a safer society, suitable tools aiming at forecasting the consequences related to their occurrence are required. Focusing on the Campania region (southern Italy), where the risk is officially analyzed on the basis of qualitative procedures, this paper shows how the results of Quantitative Risk Analyses (QRA) can prove helpful for decision-makers in the prioritization of risk mitigation actions and foster the harmonization of Italian regulations on risk analysis with technical standards for design.