Title: Surtsey
Content: of fresh magma dwindled, and large clouds of dust were often seen blowing away from the island during this stage of the eruption. The new island was named after the fire jötunn Surtur from Norse mythology ("Surts" is the genitive case of "Surtur", plus -ey, "island"). Three French journalists representing the magazine "Paris Match" notably landed there on 6 December 1963, staying for about 15 minutes before violent explosions encouraged them to leave. The journalists jokingly claimed French sovereignty over the island, but Iceland quickly asserted that the new island belonged to it. By early 1964, though, the continuing eruptions

Title: Jólnir
Content: water, but newly formed land was subject to erosion and many small islands washed away. By 1966, Jólnir had broken the surface and a volcanic cone of mafic tephra developed. The volcanic cone reached above sea level, but even this landmass eventually gave way to the eroding ocean waves. After volcanic activity ceased on 8 August 1966, the Atlantic Ocean's waves rapidly eroded the volcanic island. Near the end of September 1966, the island disappeared below the Atlantic Ocean's surface. Jólnir Jólnir was formerly a volcanic island south of Iceland. It was a former vent of Surtsey, along with Syrtlingur

Title: Surtsey
Content: ridge high on the sea floor. This seamount was named Surtla, but never reached sea level. Eruptions at Surtla ended on 6 January 1964, and it has since been eroded from its minimum depth of below sea level. In 1965, the activity on the main island diminished, but at the end of May that year an eruption began at a vent off the northern shore. By 28 May, an island had appeared, and was named Syrtlingur (Little Surtsey). The new island was washed away during early June, but reappeared on 14 June. Eruptions at Syrtlingur were much smaller in scale

Title: Jólnir
Content: Jólnir Jólnir was formerly a volcanic island south of Iceland. It was a former vent of Surtsey, along with Syrtlingur and Surtla. It emerged from the ocean as a result of active plate tectonics between December, 1965 and July, 1966. Oceanic erosion cyclically wore down the new lava as it formed, and the island sank below the surface several times. It was named for Jólnir, a Norse god (usually identified as a second name for Odin). Jólnir's formation is closely linked to that of neighboring volcanic island, Surtsey, which emerged in 1963. Volcanic eruptions occurred in much of the surrounding

Title: Eldfell
Content: Eldfell Eldfell is a volcanic cone just over high on the Icelandic island of Heimaey. It formed in a volcanic eruption, which began without warning on the eastern side of Heimaey, in the Westman Islands, on 23 January 1973. The name means "Hill of Fire" in Icelandic. The eruption caused a major crisis for the island and nearly led to its permanent evacuation. Volcanic ash fell over most of the island, destroying around 400 homes, and a lava flow threatened to close off the harbour, the island's main income source via its fishing fleet. An operation was mounted to cool

Question: What was the name of the island off Iceland which appeared in 1963 as a result of an underwater volcano?
Answer: Surtsey