Deformación tectónica en la Zona de Cizalla de las Béticas Orientales mediante técnicas geodésicas (GNSS e InSAR), resultados preliminares
- M. Béjar-Pizarro 1
- A. Staller Vázquez 2
- J.J. Portela Fernández 2
- P. Ezquerro 1
- J.J. Martínez-Díaz 3
- J.A. Álvarez-Gómez 3
- R. Pérez-López 1
- G. Herrera 1
- 1 IGME
-
2
Universidad Politécnica de Madrid
info
-
3
Universidad Complutense de Madrid
info
ISSN: 1576-5172
Year of publication: 2021
Issue Title: X Congreso Geológico de España
Issue: 18
Pages: 820
Type: Article
More publications in: Geotemas (Madrid)
Abstract
The crust around active faults is deformed as a result of the loading and unloading processes that occur throughout the seismic cycle (Reid 1910). Measuring this deformation help us better understand the structure and behaviour of faults and estimate their seismic potential, which is fundamental for the mitigation and prevention of seismic risk. This study focuses on the deformation around the Alhama de Murcia Fault, one of the main faults of the Eastern Betic Shear Zone where the Lorca earthquake occurred on 2011. For this purpose, we analyse geodetic data of radar interferometry (InSAR) and GNSS that cover the fault zone during the 2003-2019 period and compare them with the deformation predicted by interseismic models. Taking into account the results obtained, we propose a methodological approach to separate the tectonic signal from other signals present in the InSAR and GNSS data (topography, atmospheric effects, deformation in the Alto Guadalentín aquifer).