Ali Abou Assaf in Meyers et al. (1997) reports that, according to Riis et al. (1970–1986), destruction at the end of Period E1 (Late Hellenistic II) at Sukas was attributed to an earthquake dated to 68 BCE. However, Ambraseys (2009) observed that the date of “68 BC, which [was] assigned to the event, was taken from historical information rather than from archaeological evidence.”