Two phases of aseismic afterslip following the March 2021 Damasi, Greece, normal faulting earthquakes retrieved from InSAR measurements.

ABSTRACT: We investigated the post-seismic period of the March 2021 Damasi-Tyrnavos (Thessaly, Greece) normal fault earthquakes by applying the multi-temporal interferometric Small Baseline Subset method. We processed 68 ascending Sentinel-1 acquisitions between 2020/03/15 and 2022/09/12. Our results identified three areas on the hanging wall of the ruptured faults showing non-linear deformation trends (systematic motion away from the satellite), and another area, on the footwall (systematic motion towards the satellite), interpreted as due to a post-seismic effect. Inversion of the InSAR data indicated the occurrence of afterslip co-planar to the sequence's two largest fault planes (M 6.3 and M 6.0, respectively). Most of the afterslip, with a peak of about 0.2 m, occurred on the fault correspondin

SUBMITTER: Tolomei C 

PROVIDER: S-EPMC12000461 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature