Surtsey is an uninhabited volcanic island located in the Vestmannaeyjar archipelago off the southern coast of Iceland. At 63°18′11″N 20°36′18″W / 63.303°N 20.605°W Surtsey is the southernmost point of Iceland. It was formed in a volcanic eruption which began 130 metres below sea level, and reached the surface on 14 November 1963. The eruption lasted …Surtsey is an uninhabited volcanic island located in the Vestmannaeyjar archipelago off the southern coast of Iceland. At 63°18′11″N 20°36′18″W / 63.303°N 20.605°W Surtsey is the southernmost point of Iceland. It was formed in a volcanic eruption which began 130 metres below sea level, and reached the surface on 14 November 1963. The eruption lasted until 5 June 1967, when the island reached its maximum size of 2.7 km². Since then, wave erosion has caused the island to steadily diminish in size: as of 2012, its surface area was 1.3 km². The most recent survey shows the island's maximum elevation at 155 m above sea level.