According to Jeffrey Blakely in Raban et al. (1993 v. I:64), Vault 2 in Area CV collapsed suddenly, crushing pottery vessels that had been resting on the floor surfaces. The destruction is dated to the mid-7th century CE and was attributed to seismic activity. The chronological framework is based on ceramics and coins, the latest of which belong to the reign of Heraclius (r. 610–641 CE). Two earthquake events were considered possible causes: the ~634 CE Sword in the Sky Quake and the 659/660 CE Jordan Valley Quake(s). Jeffrey Blakely in Raban et al. (1993 v. I:64) describe Vault 2 as a two-story structure that collapsed downward, with its arcade collapsing toward the west. Additional evidence indicates that the second-story floor was overturned during the event.