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Historical reconstruction and evolution of the large landslide of Inza (Navarra, Spain)

Author

Listed:
  • P. Sanz Ojeda

    (Universidad Politécnica de Madrid)

  • E. Sanz

    (Universidad Politécnica de Madrid)

  • R. Galindo

    (Universidad Politécnica de Madrid)

Abstract

In the winter of 1714–1715, a large rotational landslide originated on the northern slope of the Sierra de Aralar (Navarra, Spain), generating an earthflow that slowly descended through the valley for a kilometer and a half destroying the village of Inza. An interdisciplinary research recreated the historical process of the event and the geomorphological characterization of this large landslide. The geological analysis and hydrogeological characteristics of the site also identified the determining factors of this historical event. From the analysis that triggered the landslide and how the climate affected events can now be demonstrated from historical records of excess rainfall and the initial start of the process. From the recreated pre-failure topography, the stability of the original slope was studied using a 3D numerical model to identify the factors, causes and mechanism that controlled the development of the landslide.

Suggested Citation

  • P. Sanz Ojeda & E. Sanz & R. Galindo, 2021. "Historical reconstruction and evolution of the large landslide of Inza (Navarra, Spain)," 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. 109(3), pages 2095-2126, December.
    • Handle: RePEc:spr:nathaz:v:109:y:2021:i:3:d:10.1007_s11069-021-04912-5
    DOI: 10.1007/s11069-021-04912-5
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