Caral is an important site in the Supe Valley of central Peru near the coast and was part of the Norte Chico civilisation. It was occupied during the third millennium BC, although some push that back as far as the fourth millennium. Caral is claimed to be the oldest urban settlement in the Americas(a), although other sites in the region may challenge that.
The 600 hectare site includes a pyramid complex that may have preceded those of the Egyptians. An early quipu was also found at the site suggesting some form of continuity with the later Inca civilisation.
In the 1950’s, further south, in the Manchay Valley near the capital Lima, Karola Siebert was convinced that she had found Atlantean remains, while further south again, over the border in Bolivia we have Jim Allen’s chosen location for Atlantis near Lake Poopó.
A French website(b) has on offer the strange idea that the longitude of Caral in Peru and that of Xian in China and their respective relationships with the Prime Meridian at Greenwich and the longitude of Giza have some bearing on the location of Atlantis, which the author, Fabien Pardo, places in the Antarctic!
I reject all South American locations as possibly Atlantean and do so principally because the idea of an attack on Athens being launched from the west coast of South America, thousands of years ago, is, to put it kindly, just silly. However, it is quite clear that this region has had a fascinating prehistory and should keep archaeologists busy for generations to come.
Abbe Théophile Moreux (1867-1954) was a renowned French astronomer and meteorologist. He was ordained a priest in 1891 and became a professor of Mathematics and later, in 1907, he built his own observatory.
In 1924 he published L’Atlantide A-T-Elle Existé?  (Atlantis does it Exist?) in which claimed that the Atlantis legend must have had an historical foundation.
During World War II, at the age of 76, he was imprisoned for a few weeks for criticising Herr Hitler.
Survivors of the Atlantean destruction are a reasonable expectation given the extent of its influence as described by Plato. The fact that its rulers only met every few years suggests a geographical spread that must have left some, if not most, of the confederation intact, irrespective of the location of the earthquake’s epicentre. Some writers have proposed that survivors migrated to an extensive range of locations such as Egypt, the Middle East and the Americas, but offer little to substantiate their claims apart from the widely dispersed flood myths that are most likely to have arisen following the melting of glaciers at the end of the last Ice Age.
*All the suggestions put forward are either pure speculation, invention or allegedly derived from some psychic source. W. Scott-Eliot claimed  that refugees from an Atlantic Atlantis fled westward to Mexico and became the Toltecs and eastward and built Stonehenge ln Britain! While other European cultures have also had Atlantean roots attributed to them, the most frequently named are the great civilisations of Central and South America – Aztec, Mayan and Incan. Posnansky went as far as to suggest that Tiwanaku in the Andes was built by Nordic refugees from Atlantis! Proof, however, is lacking in all cases.*