What led to the end of the Minoan culture? As you might expect, there are several theories. War? Invasion? Natural Disaster? The current favorite is a combination of the final two.
The Mediterranean basin has, in a sense, its own small ring of fire. Because the African tectonic plate is colliding with the western portion of the Eurasian plate, the area is subject to earthquakes and to volcanoes. Two famous volcanoes are situated in Italy: Vesuvius and Etna. Both have erupted more than once during human history. Think Pompeii.
Next to Crete is a small island named Thera but now called Thera. In ancient times, it was a small circular island with a caldera in the center. Santorini now looks quite different, more like a comma with another piece a short distance away. Thera is the site of a volcano which blew in approximately 1450 B.C.E. It blew out the center of the island, depositing ash as far away as Turkey and causing a tsunami that, it is theorized, swamped the boats of the Minoan Navy. (This is where the second part – invasion – comes in. The Cretan society would have been seriously damaged and in disarray after such a catastrophe and would have been easy pickings for the early Mainland Greeks.)
This volcano is still active. It is under the ocean but continues to erupt, sending lava to the surface. The small piece separated from the larger island? It is now growing as the lava pushed up from below cools and is added to the baby island. Walking on the black volcanic stone is a strange feeling.
A cataclysm of such magnitude would not be easily forgotten. In fact it has been suggested, by Velikovsky and others, that this explosion was the germ of the Atlantis tale. Plato wrote about Atlantis and Velikovsky suggested the dimensions from Atlantis fit Crete if divided by 100.