It had an estimated magnitude of 7.0 Ms and a maximum felt intensity of IX (Destructive) on the European macroseismic scale (EMS).

The total death toll reported for this whole earthquake sequence ranges between 30,000 and 60,000, although 20,000 is regarded as a more likely number.

[4] The northernmost segment of the fault zone has been the location of many major earthquakes, including the 115 Antioch, 859 Syrian coast, 1138 Aleppo and 1170 Syria events.

Further south Armanaz, Harem, Darkush, Jisr al-Shughur, Khan Shiekhun, Ariha, Idlib and Maarat were similarly affected.

[2] The damage at Aleppo was so severe that many people moved out of the city and most of the old centre was left unrepaired, with some new houses being built using wooden frames outside the ruined walls.