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Panoramic scene taken from Nikio, the capital of the island.

Nisyros

Nisyros (Greek: Νίσυρος) 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. Its shape is approximately round, with a diameter of about 8 km (5 mi), and an area of 41.6 km2 (16.062 sq mi).Several other islets are found in the direct vicinity of Nisyros, the largest of which is Gyali. The Municipality of Nisyros includes Gyalí (pop. 10) as well as uninhabited Pacheiá, Pergoússa, Kandelioússa, Ágios Antónios, and Stroggýli. It has a total land area of 50.055 km2 (19.326 sq mi) and a total population of 948 inhabitants.

Geology

The island has a 3 kilometres (1.9 mi) to 4 kilometres (2.5 mi) wide caldera, and was constructed within the past 150,000 years, with 3 separate eruptive stages, ranging from explosive and effusive andesitic eruptions to effusive and extrusive dacitic and rhyolitic activity.Its coasts are generally rocky or pebbled, but there are also a few sandy beaches (mainly in the northeastern part). The volcano is currently active (but not erupting), and fumaroles are found at the craters.It has had four historical eruptions, all of which had a VEI of 2. Almost all of its eruptions involved phreatic activity.The latest eruptive activity was a steam explosion in 1888,after small ash eruptions in 1871 and 1873 and earthquakes are not infrequent. A period of seismic unrest in 1996-1997 led an international team of scientist to initiate monitoring of the volcanic unrest in the European Union sponsored Geowarn project. The entire volcanic complex includes the seafloor between Nisyros and Kos, the island of Gyali, and a part of Kos island.

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Additional Photos by Danos kounenis (danos) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 10835 W: 291 N: 21876] (85785)
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