Surtsey is a volcanic island located off the coast of Iceland. The word Surtsey means "Surtr's island" in Icelandic, named after the Norse giant Surtr who is said to bring about the end of the world. Synonyms that could be used to describe Surtsey include volcanic island, cinder cone, and lava island. The island was created during a volcanic eruption that lasted four years from 1963 to 1967. Since its formation, the uninhabited island has been used as a laboratory for scientists studying the colonization of new land by plants and animals. Today, Surtsey is a UNESCO World Heritage Site and serves as a natural laboratory for biologists and geologists alike.