Santorine was 300 or 400 years before the period under discussion. I am going to check out my Volcano Encyclopedia to see if I can find something else. Of course, volcanoes are not the only possibility.
There was an eruption on Santorini about 200 BC; there was no “supereruption” there in historical times, the caldera is prehistoric, possibly antedating the presence of humans in the area.