Dentzer et al. (2002:115, 89) report both direct and indirect evidence of a Phase 5 earthquake in the 4th or 5th century CE at Bosra, including damage to a mosaic floor found in an earlier structure situated beneath the central church. This structure, likely an early church, dates to the 4th century CE and lies directly under the large centrally planned church (variously referred to as the cathedral, central church, or large church) built in the late 5th century CE, with the mosaics discovered a mere 10 cm above a Nabataean occupation level. The mosaics themselves bear “very clear marks of impacts from blocks falling from parts of high points of the building,” which the authors confidently attribute to an earthquake that “caused the violent destruction of the building.”