with concrete in 1989 had been destroyed when a large piece of rock separated from the rest of the island. In 2010, it was reported that the helipad had collapsed completely and that the island was now actually two skerries, separated by a gap of about . In August 2020, English YouTuber Tom Scott published a video in which he chartered a plane to confirm the continued existence of Kolbeinsey; two islands were still visible. In April 2021, the Icelandic Coast Guard visited the island and measured it as 20 meters wide from west to east and 14.5 meters long from north to south. Geology A submarine eruption was reported in 1999 near the Kolbeinsey Ridge northwest of Grímsey. Kolbeinsey is the only subaerial expression of this portion of the Mid-Atlantic Ridge. It formed during the late-Pleistocene or Holocene. Dredged glass shards indicate submarine eruptive activity during the late-Pleistocene until at least 11,800 radiocarbon years ago. See also Extreme points of Iceland Geography of Iceland List of islands off Iceland List of volcanoes in Iceland Volcanism of Iceland Geology of Iceland References External links Further information on Kolbeinsey Kolbeinsey að hverfa in Icelandic Volcanoes of Iceland Uninhabited islands of Iceland Mid-Atlantic Ridge Territorial disputes of Iceland Islands of Iceland