The citadel, including the governor’s residence, the main tower, the Four Seasons palace, and the hammam, were nearly totally destroyed, especially because of their location on top of the hill. The rocky hill concentrated the energy of the earthquake. In addition, these buildings collapsed because their foundations were resting on inhomogeneous ground, made of rocks and earth filling. The earth filling slipped with the ground motion. The city at the foot of the castle was nearly flattened, especially the parts that previously had been restored. Most of the vaulted roofs were cracked or severely damaged, because the walls below suffered too much.