Ibn al-Jawzi, who was born about a year after the earthquake, wrote that “thirteen towers in the walls of Ruha [Edessa] fell down” during this event. Bar Hebraeus, writing a little more than 150 years after the earthquake, similarly stated that “thirteen towers of the wall of Edessa” collapsed during this event. Ibn al-Athir, writing roughly a century after the earthquake, recorded that “there was a violent earthquake in the Jazīra, Syria and elsewhere. It destroyed much of Edessa, Ḥarrān, Sumaysāṭ, Bālis and other places,” and that “a great number of people perished under the rubble.”