In Europe thumb|right|upright=1.15|A map showing the hypothetical extent of Doggerland (c. 8,000 BC), which provided a land bridge between Great Britain and continental Europe Several hypotheses place the sunken island in northern Europe, including Doggerland in the North Sea, and Sweden (by Olof Rudbeck in Atland, 1672–1702). Doggerland, as well as Viking Bergen Island, is thought to have been flooded by a megatsunami following the Storegga Slide of c. 6100 BC. Some have proposed the Celtic Shelf as a possible location, and that there is a link to Ireland. In 2004, Swedish physiographist Ulf Erlingsson proposed that the legend of Atlantis was based on Stone Age Ireland. He later stated that he does not believe that Atlantis ever existed but maintained that his hypothesis that its description matches Ireland's geography has a 99.8% probability. The director of the National Museum of Ireland commented that there was no archaeology supporting this.
In Europe thumb|right|upright=1.15|A map showing the hypothetical extent of Doggerland (c. 8,000 BC), which provided a land bridge between Great Britain and continental Europe Several hypotheses place the sunken island in northern Europe, including Doggerland in the North Sea, and Sweden (by Olof Rudbeck in Atland, 1672–1702). Doggerland, as well as Viking Bergen Island, is thought to have been flooded by a megatsunami following the Storegga Slide of c. 6100 BC. Some have proposed the Celtic Shelf as a possible location, and that there is a link to Ireland. In 2004, Swedish physiographist Ulf Erlingsson proposed that the legend of Atlant.is was based on Stone Age Ireland. He later stated that he does not believe that Atlantis ever existed but maintained that his hypothesis that its description matches Ireland's geography has a 99.8% probability The director of the National Museum of Ireland commented that there was no archaeology supporting this.