Kázmér et al. (2024:33) estimated that two earthquakes struck Umm al-Jimal, the first occurring sometime between 491 and 636 CE. They assessed a local intensity of VII for this earlier event. Archaeoseismological evidence from both earthquakes includes tilted and bulged walls, U-shaped collapse features, and signs of rotation and extension. Osinga in Lichtenberger and Raja (2025:187–188) documented Late Byzantine (~6th century CE) collapse in the Northeast Church where the apse was apparently damaged and not re-used after a "mid-sixth-century destruction," while the nave and aisles were refloored and remained in use during the Umayyad period, when a chancel barrier and screen were installed.
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