Landslide geometry and activity in Villa de la Independencia (Bolivia) revealed by InSAR and seismic noise measurements
نویسندگان
چکیده
Abstract Interferometric Synthetic Aperture Radar (InSAR) enables detailed investigation of surface landslide movements, but it cannot provide information about subsurface structures. In this work, InSAR measurements were integrated with seismic noise in situ to analyse both the and characteristics a complex slow-moving exhibiting multiple failure surfaces. The body involves town around 6000 inhabitants, Villa de la Independencia (Bolivia), where extensive damages buildings have been observed. To investigate spatial-temporal motion, Sentinel-1 displacement time series from October 2014 December 2019 produced. A new geometric inversion method is proposed determine best-fit sliding direction inclination landslide. Our results indicate that featured by compound movement three different blocks slide. This further evidenced which identified dynamic sub-blocks possibly due properties shallow deep slip Determination depths allows for estimating overall volume (9.18 · 10 7 m 3 ). Furthermore, show movements manifest substantial accelerations early 2018 2019, coinciding increased precipitations late rainy season are as most likely triggers observed accelerations. study showcases potential integrating techniques understand mechanism ground subsurface.
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ژورنال
عنوان ژورنال: Landslides
سال: 2021
ISSN: ['1612-510X', '1612-5118']
DOI: https://doi.org/10.1007/s10346-021-01659-9