The surface motion map of the area affected by the February 2023 Turkey–Syria earthquakes was generated for the pre-seismic period by the SNAPPING PSI Med service (Foumelis et al. 2023) exploiting Sentinel-1 mission data.
In detail, Copernicus Sentinel-1A data from 01/2019 to 01/2023 (descending track 21) were processed over the broader area (approx. 48400 sq. km) affected by the two February 6, 2023, M7.8 and M7.5 earthquakes in Turkey and Syria, utilizing the SNAPPING Persistent Scatterers Interferometry (PSI) medium resolution service of the Geohazards Exploitation Platform (GEP; https://geohazards-tep.eu).
PSI measurements publicly available on GEP (here) and also on Zenodo repository (doi:10.5281/zenodo.7672169) contain average Line-of-Sight (LoS) velocities, corresponding uncertainties, and the complete displacement time series.