Santorini (
Greek:
Σαντορίνη, pronounced
[ˌsa(n)do̞ˈrini]) is a small, circular
archipelago of
volcanic islands located in the southern
Aegean Sea, about 200 km (120 mi) southeast from
Greece's mainland. The largest island is known as
Thēra (or
Thira, Greek
Θήρα [ˈθira]), forming the southernmost member of the
Cyclades group of islands, with an area of approximately 73 km
2 (28 sq mi) and a 2001 census population of 13,670. It is composed of the
Municipality of
Thira (pop. 12,440) and the Community of
Oía (Οία, pop. 1,230, which includes 268 inhabitants resident on the offshore island of
Therasia, lying to the west). These have a total land area of 90.623 km
2 (34.990 sq mi), which also includes the uninhabited islands of
Nea Kameni, Palaia Kameni, Aspronisi, and Christiana (all part of the Municipality of Thira).
Santorini is essentially what remains of an enormous volcanic explosion, destroying the earliest settlements on what was formerly a single island, and leading to the creation of the current geological
caldera.
A giant central lagoon, more or less rectangular, and measuring about 12 by 7 km (7.5 by 4.3 mi), is surrounded by 300 m (980 ft) high steep cliffs on three sides. The island slopes downward from the cliffs to the surrounding Aegean Sea. On the fourth side, the lagoon is separated from the sea by another much smaller island called
Therasia; the lagoon merges with the sea in two places, in the northwest and southwest. The water in the centre of the lagoon is nearly 400 m (1,300 ft) deep, thus making it a safe harbour for all kinds of shipping. The island's harbours all lie in the lagoon and there are no ports on the outer perimeter of the island; the capital,
Fira, clings to the top of the cliff looking down on the lagoon. The volcanic rocks present from the prior eruptions feature
olivine and have a notably small presence of
hornblende.
[1]
It is the most active volcanic centre in the
South Aegean Volcanic Arc, though what remains today is chiefly a water-filled caldera. The volcanic arc is approximately 500 km long and 20–40 km wide. The region first became volcanically active around 3–4 million years ago though volcanism on Thera began around 2 million years ago with the extrusion of dacitic lavas from vents around the region of Akrotiri.
The island is the site of one of the largest
volcanic eruptions in recorded history: the
Minoan eruption (sometimes called the
Thera eruption), which occurred some 3,600 years ago at the height of the
Minoan civilization. The eruption left a large caldera surrounded by
volcanic ash deposits hundreds of feet deep and may have led indirectly to the collapse of the Minoan civilization on the island of
Crete, 110 km (68 mi) to the south, through the creation of a gigantic
tsunami. Another popular theory holds that the Thera eruption is the source of the legend of
Atlantis.
The name Santorini was given to it by the
Latin Empire in the thirteenth century, and is a reference to
Saint Irene. Before then it was known as
Kallístē (Καλλίστη,
"the most beautiful one"),
Strongýlē[citation needed] (Στρογγύλη,
"the circular one"), or
Thēra.
Source: Wikipedia
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