A geologist has found evidence that a vast rock slide may have set off a tsunami that buried a prehistoric village on Lake Mondsee in the Austrian Alps. According to a report in Spiegel Online, the theory that a severe rockslide in the Alps destroyed a prehistoric village, has been put forward by Alexander Binsteiner, a geologist and flint stone expert. He estimates that the fractured cliff consisted of '50 million cubic meters' of rock, and that an ensuing tsunami at least five meters tall rushed against the opposite shore, inundating the settlement there.