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The Role of the Precipitation History on Landslide Triggering in Unsaturated Pyroclastic Soils

  • Luca ComegnaEmail author
  • Melania De Falco
  • Fatemeh Jalayer
  • Luciano Picarelli
  • Antonio Santo
Conference paper

Abstract

A wide area around the town of Naples is mantled by shallow unsaturated volcanoclastic soils that are highly susceptible to fast rainfall-induced flow-like landslides. Some casualties and huge damage recorded in the last twenty years testify the serious threat posed by such events. Due to the impact of these phenomena, the local research community is strongly committed in studies whose results have allowed to understand some key aspects of the triggering and propagation mechanisms. However, the way to run for risk mitigation is still long: given the density of population and of infrastructure, the setting up of reliable early warning systems would be a fundamental tool to this aim. Based on a rich data-base about the features of the rainfall-induced landslides in unsaturated volcanoclastic soils occurred on January, 10th, 1997, in a small area located in the Sorrento peninsula, and the history of precipitations occurred in the same area in the last fifty years, the paper examines the relation between rainstorms and landslides, showing the fundamental role of the recent precipitation history.

Keywords

Rainfall-induced landslide Unsaturated pyroclastic soils Precipitation history Hydrological response Hazard 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Luca Comegna
    • 1
    Email author
  • Melania De Falco
    • 2
  • Fatemeh Jalayer
    • 3
  • Luciano Picarelli
    • 1
  • Antonio Santo
    • 2
  1. 1.Dipartimento di Ingegneria Civile, Design, Edilizia e AmbienteUniversità degli Studi della Campania Luigi VanvitelliAversaItaly
  2. 2.Dipartimento di Ingegneria Civile, Edile e AmbientaleUniversità degli Studi di Napoli Federico IINaplesItaly
  3. 3.Dipartimento di Strutture per l’Ingegneria e l’ArchitetturaUniversità degli Studi di Napoli Federico IINaplesItaly

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