EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Ground motion detection in Central South Asturias (N Spain) by using Sentinel-1 SAR data

Jose Cuervas-Mons1, María José Domínguez-Cuesta1, Félix Mateos-Redondo2, Oriol Monserrat3, and Anna Barra3
Jose Cuervas-Mons et al.
  • 1University of Oviedo, Department of Geology, Oviedo, Spain (;
  • 2GEA Asesoría Geológica – S. COOP ASTUR, Llanera, Spain (
  • 3Geomatics Division, Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Castelldefels, Spain (;

In this work, the A-DInSAR techniques are applied in a mountainous area located in the Central South of Asturias (N Spain), where there are significant landslide and subsidence phenomena. The main aim of this study is detecting and analysing ground deformations associated to slope instabilities and subsidence processes. For this, 113 SAR images, provided by Sentinel-1A/B between January 2018 and February 2020, were acquired and processed by means of PSIG software (developed by the Geomatics Division of the CTTC). The results show a velocity range between -18.4 and 10.0 mm/year, and minimum and maximum accumulated ground displacements of -35.0 and 17.5 mm. This study has made possible to differentiate local sectors with recent deformation related to landslide incidence, urban/mining subsidence, and land recuperation due to aquifer recharge. This work corroborates the reliability and usefulness of the A-DInSAR processing as a powerful tool in the study and analysis of geological hazards on regional and local scales using Sentinel-1 data collection, showing also the high difficulty of processing mountainous areas with few urban sectors.

How to cite: Cuervas-Mons, J., Domínguez-Cuesta, M. J., Mateos-Redondo, F., Monserrat, O., and Barra, A.: Ground motion detection in Central South Asturias (N Spain) by using Sentinel-1 SAR data, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-28,, 2020.


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