Assessing changes in nighttime lighting in the aftermath of the Turkey-Syria earthquake using SDGSAT-1 satellite data

On February 6,2023,a powerful earthquakewith amagnitude of 7.8MW struck southeastern Turkey and northwestern Syria.The epicenter of the earthquake was in Gaziantep,Turkey.The earthquake was followed by a devastating aftershock 9 h later,which registered a magnitude of 7.5 MW and which had an epicenter located 100 km farther north in Kahramanmaras,Turkey.Thousands of subsequent tremors and aftershocks since the initial earthquake have further exacerbated the impacts on lives and infrastructure,resulting in more than 50,000 deaths and damage to hundreds of thousands of buildings in the region.