The Jordan Rift Valley is the result of tectonic movements within the Dead Sea Transform (DSF) fault system. The DSF forms the transform boundary between the African Plate to the west and the Arabian Plate to the east. The Golan Heights and all of Jordan are part of the Arabian Plate, while the Galilee, West Bank, Coastal Plain, and Negev along with the Sinai Peninsula are on the African Plate. This tectonic disposition leads to a relatively high seismic activity in the region. The entire Jordan Valley segment is thought to have ruptured repeatedly, for instance during the last two major earthquakes along this structure in 749 and 1033. The deficit in slip that has built up since the 1033 event is sufficient to cause an earthquake of Mw~7.4.