The 1956 Amorgos earthquake resulted in the demolition of many buildings in the north of Santorini , leading to the desertion of many of its villages . The expansion of tourism has resulted in the growth of the economy and population . The major settlements include Fira ( Phira ) , Oia , Emporio , Kamari , Perissa , Imerovigli , Pyrgos , and Therasia . Akrotiri is a major archaeological site , with ruins from the Minoan era . Santorini 's primary industry is tourism , particularly in the summer months . In 2007 , the cruise ship '' MS Sea Diamond '' ran aground and sank inside the caldera . The island 's pumice quarries have been closed since 1986 , in order to preserve the caldera . Santorini was ranked the world 's top island for many magazines and travel sites , including the '' Travel Leisure Magazine '' , the '' BBC '' , as well as the '' US News '' . An estimated 2 million tourists visit annually
1956 Amorgos earthquake
1956 Amorgos earthquake
Santorini