Human Origins / Archaeology

In 2000, Synolakis had con- sulted on a study to model a hypothetical Minoan tsunami. He found that no matter how steep the waves were when they started out at Thera, they dissipated quickly, reaching only three to nine feet at most when they hit Crete, some 70 miles away. The study concluded that such waves could have been “disruptive,” but not devastating, to Minoan Crete.

Synolakis was still thinking that way when he visited Palaikastro in May 2006. Then MacGillivray took him down to the beach. “The moment I looked at that debris layer, I was absolutely stunned,” Synolakis says. “The image that came to me, right then and there, is what I saw everywhere after the December 2004 tsunami: a blanket of cultural debris, broken dishes, broken glass, bits of bone, people’s belongings scattered everywhere. It looked exactly like that kind of debris carpet, and you don’t get it in a smaller tsunami. The presence of this chaotic deposit suggested that the tsunami was at least three or four meters [10 to 13 feet] at the shoreline.” What had begun as a casual visit now turned into a full-blown research project. Synolakis hired a boat and took depth measurements of the seabed in Palaikastro Bay. When he tested the hillside behind the Minoan town to establish how far the wave had penetrated inland, he found what appeared to be more layers of chaotic debris at an astounding 90 feet above sea level.

About 60 miles to the west of Palaikastro, near the palace of Mallia, the research team found yet another strikingly similar chaotic deposit. Plugging in all the new data, Synolakis drastically revised his tsunami model. “When we put it all together,” he says, “we’re looking at a wave that’s on the order of 15 meters [50 feet] when it hits the shore at Palaikastro. This is a gigantic wave, much larger, wider, and longer than we thought; its volume is 10 times more than what we estimated only six years ago. We’re talking about an extreme event, certainly on the order of the 2004 Indian Ocean disaster.”

With eyewitness video of that disaster lingering in everyone’s minds, it took little imagination to visualize the physical destruction that must have hit Palaikastro, Mallia, and elsewhere along the Cretan coast. But evidence suggests that the Minoans survived the disaster for at least a generation or two; the real end came later, in an outbreak of fiery vandalism. Throughout Crete, temple-palaces were burned and ransacked, and there are no obvious signs of battle, invasion, or natural disaster at these ruins. Of all the great Minoan palaces, only Knossos survived; eventually it was taken over by the Mycenaeans, the mainland Greeks who prospered as the fortunes of Crete declined.

A leader of the Palaikastro team, Belgian archaeologist Jan Driessen, contends that the wave of destruction was the tail end of a spiral of instability that the Thera catastrophe set in motion. A steep drop-off in the number of Minoan sites suggests that there had been a famine or an epidemic, one perhaps touched off by the environmental effects of the eruption combined with the later tsunami.

There may have been a spiritual crisis as well. At Palaikastro, archaeologists found that a shrine had been violently destroyed and a cult statuette deliberately smashed and burned. Driessen suggests there may have been a reaction against the religious cult represented by the statuette, perhaps as part of a populist uprising against the elite in their villas and temple-palaces. The loss of life and livelihood after the eruption may have aggravated problems of class difference and widened the gap between the elite and the commoners, which Driessen says “existed already in Minoan society.”

The terrifying scale of the Thera eruption, followed by the devastating force of the giant tsunami it created, may have led to a gradual unraveling of the values and beliefs that had sustained this brilliant civilization for so long. In his poem “The Hollow Men,” T. S. Eliot writes these famous lines: “This is the way the world ends / This is the way the world ends / This is the way the world ends / Not with a bang but a whimper.”

For the Minoans, it appears their world ended with both.