They say it's a very strong anomaly. Stronger than most they encounter anywhere, whether over a meteor strike or whatever.
I found this today. Very interesting, especially considering the highly logical interpretation of some of Plato's points:
Long ago the World Ocean was navigated beyond the Straits of Gibraltar by sailors from an island larger than North Africa and the Middle East combined. After leaving Antarctica you would encounter the Antarctic archipelago (islands currently under ice) and from them you would reach the World Continent which encircles the World Ocean. The Mediterranean Sea is very small compared to the World Ocean and could even be called a bay. But beyond the Mediterranean Sea is a World Ocean which is encircled by one continuous landmass.
When the globe is looked at from the perspective of Antarctica, the Northern Hemisphere does look like an opposite, almost continuous, continent that surrounds the "world ocean", that being the huge amount of water immediately surrounding Antarctica. Maybe with slightly lower ocean levels due to the huge land mass of North America being at the North Pole condensing thousands of cubic miles of ice, the "opposite continent" was continuous. Fascinating theory. Even Einstein liked it.
- Gautama Buddha