Therasia

Therasia, also known as Thirasía (Greek: Θηρασία), is an island in the volcanic island group of Santorini in the Greek Cyclades.^[1][2] It lies north-west of Nea Kameni, a small island formed in recent centuries by volcanic activity and thus marking the centre of the island group. Therasia is the second largest island of the group, the largest by far being Thera.

Coordinates36.43°N 25.33°E / 36.43; 25.33

ArchipelagoCyclades

Area9.3 km² (3.6 sq mi)

RegionSouth Aegean

Quick facts Native name: Θηρασία, Geography ...

Therasia

Native name: Θηρασία
Location within Greece
Geography
Coordinates	36.43°N 25.33°E / 36.43; 25.33
Archipelago	Cyclades
Area	9.3 km2 (3.6 sq mi)
Administration
Greece
Region	South Aegean
Regional unit	Thira
Municipality	Thira
Demographics
Population	249 (2021)
Pop. density	34/km2 (88/sq mi)
Additional information
Postal code	847 02
Area code	22860
Vehicle registration	EM

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Therasia has a land area of 9.299 square kilometres (3.590 sq mi) and its population was 249 inhabitants at the 2021 census. It is part of the municipal unit of Oia (Δημοτική Ενότητα Οίας).

Thera and Therasia were separated by the Thera eruption.