The earthquake on April 23, 2025, in the Marmara Sea region, Western Turkiye, with a magnitude of 6.2, was the strongest in the region in the last ten years, the National Institute of Geophysics, Geodesy and Geography with the Bulgarian Academy of Sciences announced on its official Facebook page Thursday. More than 120 aftershocks were registered after the main quake, which had its epicentre in the western part of the North Anatolian Fault and was also felt in Bulgaria, the Institute adds.