Computing crustal deformation of the Iberian Peninsula

Abstract

Crustal deformation studies are useful to comprehend on-going geological processes and enhance seismic hazard assessment studies. These studies require large GPS data sets, covering a wide temporal and spatial range, besides further complex computation and analysis. We present a three-dimensional crustal deformation velocity map of the Iberian Peninsula with improved spatial resolution. The results show a regional clockwise rotation of the peninsula, as well as a northward velocity trend in the eastern Betics. An explanation could involve a rigidly rotating lithospheric block along with a viscous coupling between Nubia and Eurasia plates. The results are coherent with earlier studies and will serve as a basis for future research