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

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