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Geophysical surveys to study a landslide body (north-eastern Sicily)

Author

Listed:
  • S. Imposa

    (University of Catania)

  • S. Grassi

    (University of Catania)

  • F. Fazio

    (Geodixi)

  • G. Rannisi
  • P. Cino

Abstract

Almost the entire Italian territory is prone to hydrogeological risk mostly due to landslides and flooding. The high frequency of extreme weather events in areas prone to geological–hydraulic hazards contributes significantly to increasing the risk for cities and its infrastructure, but above all for the people living there. Therefore, it is vital to research into rapid monitoring techniques to be applied following a disaster such as a landslide, so that important background information, useful for planning interventions aimed at hazard mitigation, can be obtained. This work seeks to identify the depth of the sliding surface of a landslide affecting the municipal area of Tripi (village in the Messina province, Sicily), through two geophysical field surveys (MASW and HVSR) undertaken in the same area at an interval of about 5 years. The MASW surveys have enabled to reconstruct the distribution of shear wave velocity with depth. The HVSR surveys have provided information on resonant frequency and directional effects. The data integration obtained by the two methods allowed to reconstruct impedance contrast sections indicating the depth of the sliding surface of the landslide.

Suggested Citation

  • S. Imposa & S. Grassi & F. Fazio & G. Rannisi & P. Cino, 2017. "Geophysical surveys to study a landslide body (north-eastern Sicily)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 86(2), pages 327-343, April.
    • Handle: RePEc:spr:nathaz:v:86:y:2017:i:2:d:10.1007_s11069-016-2544-1
    DOI: 10.1007/s11069-016-2544-1
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    Cited by:

    1. Yawar Hussain & Martin Cardenas-Soto & Salvatore Martino & Cesar Moreira & Welitom Borges & Omar Hamza & Renato Prado & Rogerio Uagoda & Juan Rodríguez-Rebolledo & Rafael Cerqueira Silva & Hernan Mart, 2019. "Multiple Geophysical Techniques for Investigation and Monitoring of Sobradinho Landslide, Brazil," Sustainability, MDPI, vol. 11(23), pages 1-18, November.
    2. Sebastiano D’Amico & Pauline Galea & Ruben P. Borg & Marc Bonello, 2017. "Georisks in the Mediterranean and their mitigation," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 86(2), pages 199-202, April.
    3. Olegario Alonso-Pandavenes & Daniela Bernal & Francisco Javier Torrijo & Julio Garzón-Roca, 2023. "A Comparative Analysis for Defining the Sliding Surface and Internal Structure in an Active Landslide Using the HVSR Passive Geophysical Technique in Pujilí (Cotopaxi), Ecuador," Land, MDPI, vol. 12(5), pages 1-29, April.

    More about this item

    Keywords

    Landslide; Sicily; HVSR; DHVPOR; MASW;
    All these keywords.

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