The 2021 Greece Central Crete ML 5.8 Earthquake: An Example of Coalescent Fault Segments Reconstructed from InSAR and GNSS Data

The ML 5.8 earthquake that hit the island of Crete on 27 September 2021 is analysed with InSAR (Interferometry from Synthetic Aperture Radar) and GNSS (Global Navigation Satellite System) data. purpose this work to create a model sufficient detail for geophysical processes take place in several kilometres below earth’s surface improve our ability observe active tectonic using geodetic seismic coseismic displacements maps show negative values along LOS ~18 cm ascending orbit ~20 descending one. Similarly, data three permanent stations were used PPK (Post Processing Kinematic) mode (i) estimate shifts, highlighting same range as InSAR, (ii) deformation ground associated main shock, (iii) validate results by combining This allowed us constrain geometric characteristics seismogenic fault slip distribution it. Our model, which stands joint inversion data, highlights major rupture striking 214°, dipping 50° NW extending at depth 2.5 km down 12 km. kinematics almost dip-slip normal (rake ?106°), while maximum ~1.0 m occurred ca. 6 crucial though indirect role inherited structures affecting crustal volume also discussed suggesting their influence surrounding stress field capacity dynamically merge distinct segments.