I have had a lot to say on this topic and presently support the conjecture that the event took place 1159 BC and maximally involve the submergence of Lyonesse, Azores, Bahama Bank and the Cuban Archepeligo. The event of Comet Clovis acted to set up this subsidence and the actual subsidence could have happened in stages thousands of years apart.
This item confirms that scholarship is now catching up to the importance of Comet Clovis. I discovered the event before 2004 when scant evidence existed. What it ensured was that the Atlantic had been subjected to violent geological shifts that were massively damaging to life on Earth.
Thus i have the cause and the related mechanisms then put in play to create a stream of major events now essentially complete.
Coincidentally an era of massive volcanism along the ring of fire began with this impact and has steadily declined since. This needs to inform geology as a science in their analysis of volcanoes.
The actual crustal shift took place at the time of impact which was deliberately targeted to produce that exact effect and thus lead to the end of the Ice Age. All this set up a number of changes incompletely mapped at present.
What Became of Atlantis: The Flood from Heaven
In one of Plato's dialogues, the Timaeus, the priest goes on to explain how the Athenians were struck by not merely one, but several floods, and why his own homeland was spared:
[ Exactly what i have been saying - arclein ]