Former island

Infographic showing the effects of Hurricane Walaka of 2018 on the tiny Pacific island, East Island

A former island is a mass of land that was once an island, but has been joined to a mainland, another island, or engulfed by the sea. The process of joining might be the result of volcanic activity, moving tidal sands, or through land reclamation. Islands engulfed by the sea may have lowered because of subsidence, tectonic activity, erosion, or rising sea levels. For example, the New Moor island of Bangladesh existed in the 1970s, but was engulfed by Bay of Bengal in 2011.

See also

• Eldøyane, a partially artificial former island in Norway
• Ghost Island (disambiguation)
• List of lost lands
• Phantom island
• Sakurajima, 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.