Both the Exodus and Atlantis stories suggest otherwise.Which Atlantis story? The only ancient one (and therefore, the only actual surviving source) is Plato, and he doesn't say anything about any eruption in the Aegean. The modern myth of Thera-was-Atlantis was invented for the tourist trade and to sell some books. Also, there is absolutely nothing in the Exodus account about the Israelites following a volcanic column far to the north -- they were headed east. In addition, there's nothing a Thera volcano could have done to produce the parted seas.
Unless you dismiss the Exodus account entirely, the plagues suggest a natural catastrophe of some magnitude.