Abstract
In mountain regions worldwide, rainfall-induced landslides and associated debris flows erode slopes, scour channels, and contribute to the formation of alluvial fans that may harm humans and destroy buildings. Rainfall-induced slope failures are frequent and widespread in Italy, where individual rainfall events can result in single or multiple slope failures in small areas or in very large regions. Most of the harmful failures were rainfall-induced, and several were shallow slides or debris flows. In the 60-year period 1950–2009, casualties due to landslides were at least 6,349, an average of 16 harmful events per annum. The large number of harmful events indicates the considerable risk posed by rainfall-induced shallow landslides and debris flows to the population of Italy (Guzzetti et al. 2005a; Salvati et al. 2010).
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Acknowledgements
Part of the paper is reprinted from the work of Brunetti et al. (2010), and it is used with permission. Work supported by the Italian National Department for Civil Protection (DPC), which provided the national rainfall database for the period 2002–2009. MTB, SP and MR were supported by DPC grants. We thank G. Tonelli for the work on the rainfall database, and E. E. Brabb for reviewing the paper.
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Brunetti, M.T. et al. (2013). Rainfall Thresholds for Possible Occurrence of Shallow Landslides and Debris Flows in Italy. In: Schneuwly-Bollschweiler, M., Stoffel, M., Rudolf-Miklau, F. (eds) Dating Torrential Processes on Fans and Cones. Advances in Global Change Research, vol 47. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4336-6_22
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