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Nisyros (Municipality, Greece)

Νίσυρος

image by Tomislav Šipek, 30 January 2022

Presentation of Nisyros
Flag of Nisyros

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Presentation of Nisyros

Nisyros is a volcanic Greek island and municipality located in the Aegean Sea. It is part of the Dodecanese group of islands, situated between the islands of Kos and Tilos.

The municipality of Nysiros (1,008 inhabitants in 2011; 5,008 ha) is composed of the islands of Nysiros, Gyalí (22 inh.), and of the uninhabited islets of Pacheiá, Pergoússa, Kandelioussa, Ágios Antónios and Stroggýli. Part of Dodecanese, Nysiros is located between Kos and Tilos.

The easternmost volcano of the Aegean arc forms the 9-km-wide island of Nisyros, which is truncated by a 3-4 km wide caldera. The island was constructed during the past 150,000 years, with three cone-building stages including explosive and effusive andesitic eruptions and effusive and extrusive dacitic and rhyolitic activity. Five large post-caldera lava domes completely fill the western part of the caldera. A sixth post-caldera dome, outside the SW caldera rim, produced lava flows that reached the coast. Historical phreatic eruptions occurred from craters within the caldera between 1422 and 1888. Intense hydrothermal activity continues in the form of many fumaroles on the caldera floor and hot springs along the coast.

https://volcano.si.edu/volcano.cfm?vn=212050
Global Volcanism Program, Smithsonian Institution
Ivan Sache, 7 February 2022

Flag of Nisyros

The flag of Nisyros is deep blue fading to a lighter blue in the center with the seal featuring Poseidon and a leaping dophin on a map of the island.

https://www.rodiaki.gr/article/395997/me-themata-ths-nisyroy-asxolhthhke-o-giannhs-flebarhs

Tomislav Šipek, 30 January 2022

The municipal emblem features a map and an island and the god Poseidon, recalling an episode of the gigantomachy.

Nisyros lies to the north of Telos, and is about sixty stadia distant both from it and from Cos. It is round and high and rocky, the rock being that of which millstones are made; at any rate, the neighboring peoples are well supplied with millstones from there. It has also a city of the same name and a harbor and hot springs and a temple of Poseidon. Its perimeter is eighty stadia. Close to it are also isles called Isles of the Nisyrians. They say that Nisyros is a fragment of Cos, and they add the myth that Poseidon, when he was pursuing one of the giants, Polybotes, broke off a fragment of Cos with his trident and hurled it upon him, and the missile became an island, Nisyros, with the giant lying beneath it. But some say that he lies beneath Cos.

Strabo. Geography 10.5.16
https://www.perseus.tufts.edu/hopper/text?doc=Strab.%2010.5.16&lang=original
Ivan Sache, 7 February 2022