In the mid eighth century, towards the end of the Umayyad regime, a major earthquake occurred in Palestine and the East, of which we know from Christian, Jewish and Muslim sources. Archaeologists relate to destruction by this earthquake layers in several sites, such as Jerusalem, Gerasa in Arabia, and sites mostly along the Jordan valley, among them Kh. Mefjer near Jericho, Pella, Capernaum, Sussita-Hippos, and recently, Bet Shean-Scythopolis (see below).
The exact date of this earthquake is controversial; some scholars date it to 746, others to 747 or 748, In 1960, M. Margaliot suggested that the earthquake took place in 749. In this article we present new archaeological and numismatic evidence in support of this later date (see below p. 234, and pl.II).