I hold the idea open, wondering if it is, then thinking no, then thinking yes...
Would love to KNOW:)
Plato doesn’t discuss Thera at all in his two dialogues mentioning Atlantis, and most definitely puts it in the Atlantic (hence the name). Although the origin of the tale is given as Egypt, there’s literally nothing about Atlantis in the literary relics of Egypt that have survived.
There used to be an “R. Shand” online (1990s) who claimed that another Greek traveler (name eludes me now) saw a column in Egypt with the Atlantis story written upon it, the trouble is, no such column exists today, the location isn’t given, and the likelihood is he was fed a line by some tour guide, some things never change.
Plato doesn’t discuss Thera that I know of; Herodotus writes quite a bit about it, and neither of them mention any volcanic eruption. This is due to the fact that there was no “supereruption” at all, and both writers were long dead by the time the early 2nd c BC eruption took place (the one cited above, it’s dated to 199 or 197 BC).