Terrain displacement from the Turkiye-Syria earthquakes of February 6,2023 obtained with the GDM-OPT-ETQ service applied on Sentinel-2 optical imagery

The region along the East Anatolian Fault (EAF) has a well-known history of seismic activity. On February 6, 2023, two earthquakes of Mw 7.8 and 7.5 had devastating effects on the ground by opening large ruptures and by displacing the earth crust of 5 to 10 m locally. The longer of the two ruptures stretches nearly 300 km in the northeastern direction from the northeastern part of the Mediterranean Sea. The surface rupture was created by the first and most powerful 7.8-magnitude earthquake that triggered at 4:17 am local time; the second surface rupture of 125 km long opened during the second 7.5-magnitude earthquake about nine hours later. By comparing several optical satellite imagery before and after the earthquake, the horizontal displacements of the ground can be calculated using image correlation (also known as offset tracking) techniques. This data release contains co-seismic horizontal displacements obtained from the analysis of Copernicus Sentinel-2 satellite imagery at 10 m spatial resolution. The dataset has been created with the GDM-OPT-ETQ service of the FormaTerre solid Earth data hub using the open source photogrammetry library MicMac. The massive processing was performed on the Geohazard Exploitation Platform (GEP)