This process occurred on both sides of the Atlantic, as ice sheet cover was very extensive during the glacial period. What triggered off this melting was the extensive volcanic and seismic activity, resulting from the lithosphere being released from glacial pressure and the process of isotasy. The rate of rebound can be determined by the lithospheric depth and geological land structure. The land of Atlantis not only sunk under the ocean, but was swallowed by the Earth. Volcanic activity around the mid-Atlantic trench.
Earth quakes Worldwide.
Flooding all parts of the Planet. In fact the isostatic-rebound event is still occurring in the Baltic region of N. Europe, but far more slowly than the decades following the glacial melt.