The update is, there was no eruption of Thera, apart from the attested one circa 200 BC. There wasn’t a tsunami. Even the caldera seen today was there for tens of thousands of years. It is strange to me how this has persisted. Zangger notes that the first suggestion of such a culture-shifting eruption apparently comes from late in the 19th c (Evans didn’t start excavation until 1900). It was picked up on in the 1930s (when the Atlantis connection was added, if memory serves), revived again in the 1960s, and periodically ever since (generally equated with Atlantis).
A few years ago, I bought a whole book on the Thera eruption. I never got a chance to read it. If I can locate it I will see what kind of references and test data it has and let you know.