Santorini is a complex of overlapping shield volcanoes. The island location is 36.4N, 25.4E and the elevation is 1,850 feet (564 m). It is 80 sq. km. South East Greece, in the Aegean Sea; one of the Cyclades islands. Some of the cliff is thought to be a caldera wall associated with an eruption 21,000 year ago. Santorini’s population last measured in 2002 was 11.000 people.
According to tradition, Santorini was first settled by Phoenicians and later by Laconians under the leader Thera. In 631 B.C. colonists from the island founded Cyrene in N Africa. From the Middle Ages until the 20th cent. Thira was known as Santorin, for St. Irene, the protector of the island. See Villages
The creation of Santorini in an amazing video
An excellent video demonstrates step by step the formation of the island of Santorini from the period when it was a circular island until today. The country that hangs on the rocks and the creation of the island that resulted from earthquakes and eruptions from 4 different volcanoes are presented in the video of Nikos Korakakis based on studies and scientific research. The geomorphological changes that took place over the centuries gave the island its current form.