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A former island is a mass of land that was once an
island An island or isle is a piece of subcontinental land completely surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be ...
, but has been joined to a mainland, another island, or engulfed by a body of water. The process of joining might be the result of volcanic activity, moving tidal sands, or through
land reclamation Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclam ...
. Islands engulfed by the sea may have lowered because of subsidence, tectonic activity, erosion, or
rising sea levels Rising may refer to: * Rising, a stage in baking - see Proofing (baking technique) *Elevation * Short for Uprising, a rebellion Film and TV * "Rising" (''Stargate Atlantis''), the series premiere of the science fiction television program ''Starga ...
. For example, the New Moor island in
Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million pe ...
existed in the 1970s, but was engulfed by the
Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean, bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line bet ...
in 2011.


See also

* Eldøyane, a partially artificial former island in
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
* Any of several former
Islands in the River Thames This article lists the islands in the River Thames, or at the mouth of a tributary (marked †), in England. It excludes human-made islands built as part of the building of forty-five two-gate locks which each accompany a weir, and islets subordi ...
, England * Sevan Island, a former island in
Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ...
, now a peninsula *
Urk Urk () is a municipality and a town in the Flevoland province in the central Netherlands. Urk is first mentioned in historical records dating to the 10th century, when it was still an island in the Zuiderzee, an inland sea that would become par ...
, a former island now part of the reclaimed
Noordoostpolder Noordoostpolder (; en, "North-East Polder") is a polder and municipality in the Flevoland province in the central Netherlands. Formerly, it was also called '' Urker Land''. Emmeloord is the administrative center, located in the heart of the Noord ...
in the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
, a victim of the Zuiderzee Works, a
land fill Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamat ...
designed by
Cornelis Lely Cornelis Lely (; 23 September 1854 – 22 January 1929) was a Dutch politician of the Liberal Union (LU) and civil engineer. He oversaw the passage of an act of parliament authorising construction of the Zuiderzee Works, a huge project – desi ...
* Ghost Island (disambiguation) *
List of lost lands Lost lands are islands or continents believed by some to have existed during pre-history, but to have since disappeared as a result of catastrophic geological phenomena. Legends of lost lands often originated as scholarly or scientific theor ...
*
Phantom island A phantom island is a purported island which was included on maps for a period of time, but was later found not to exist. They usually originate from the reports of early sailors exploring new regions, and are commonly the result of navigati ...
*
Sakurajima Sakurajima ( ja, 桜島, literally "Cherry Blossom Island") is an active stratovolcano, formerly an island and now a peninsula, in Kagoshima Prefecture in Kyushu, Japan. The lava flows of the 1914 eruption connected it with the Ōsumi Penins ...
, a former island now joined to the mainland in Japan


Further reading

* Johnson, H & Kuwahara, S (2016),
Sakurajima: Maintaining an island essence
, ''Shima: The International Journal of Research into Island Cultures'', vol. 10, no.1, pp. 48–66.


References

* {{island-stub