Alarm was caused at Saint Catherine's Monastery on the Sinai Peninsula, and there was damage in the ancient city of Tinnis in the Nile delta, but not farther to the west along the Egyptian coast in Alexandria. In Cairo the only damage was to a corner of the Mosque of Amr ibn al-As in Fustat. Seismologist Nicholas Ambraseys described one account of the effects at Ramla as destructive and with a large loss of life (15,000 deaths, 200 of which were boys at a school). He also expounded on the effects to the north in Banias, where 100 were killed, and in Jerusalem, where the roof of the Dome of the Rock was displaced and then returned to its former position. Those that were affected by the heavy damage in Ramla apparently migrated to Jerusalem, which indicated to Ambraseys that the effects there were otherwise minimal.