Mohenjo-Daro is the archaeological evidence of an ancient Nuclear strike. All of the bones have more radioactivity than they should have. Some of them who died were holding hands at the time of their death. Death was sudden for them. For a long time, they thought they had sword cuts, but the dead lied where they lay.
There is an impact site near the city, where the ground melted and made glass. When authorities heard of this theory, they couldn't believe it. But one of the developers of the Atomic Bomb was asked if that was the first time a nuclear explosion occurred. He said yes, but in our epoch.
There is even a theory that Mohenjo-Daro and other Indus Valley cities represented Sodom and Gommorrah, Zoar, and the other cities of the plain. Because of this connection, the theory said that Abraham and Sarah came out of the Indus Valley. This is a good alternative theory, but . . . Abraham wrote he came out of Ur of the Chaldees. Most everyone thinks this is the city of Uruk. But it could have been located in Georgia.
To get back to Atlantis:
Atlantis was capable of the same technology. They had nuclear weapons, and they mined their ore at a sight in Africa. The nations of the world exchanged nuclear weapons. The effects of this are the North American deserts and the North African, Sahara Desert.