Thousands of buildings in the region collapsed. The magnitude 7.7 and 7.6 quakes were centered in Kahramanmaraş and struck 10 other provinces – Adana, Adıyaman, Diyarbakır, Hatay, Gaziantep, Malatya, Kilis, Osmaniye, Elâzığ and Şanlıurfa. More than 13 million people have been affected by the devastating quakes. Several countries in the region, including Syria and Lebanon, also felt the strong tremors that struck Turkey in the space of less than 10 hours.