Pharos in the Nile Delta has been suggested by R. McQuillen as the location of Atlantis. It should be noted that the cities of Canopus and Herakleon in the same area were submerged, apparently due to liquefaction, following an earthquake between 731 and 743 BC. If something similar occurred at Pharos it might explain the shoals of mud reported by Plato and might even have been the reason for the erection of the famous lighthouse there around 280 BC.