Geography of Norway in the open ocean. Jan Mayen: to the far northwest, halfway towards Greenland, is the island Jan Mayen, where Beerenberg is found, the only active volcano in Norway. Bouvet Island: located in the South Atlantic Ocean at 54°S and mostly covered by glaciers, this island is one of the most remote islands in the world, inhabited only by seals and birds. Peter I Island: this island in the South Pacific Ocean at 69°S, 90°W is dominated by glaciers and a volcano. As with Bouvet Island, this island is regarded as an external dependency, and not part of the kingdom. Queen
Atlantic Ocean has a volume of . The North Atlantic covers (11.5%) and the South Atlantic (11.1%). The average depth is and the maximum depth, the Milwaukee Deep in the Puerto Rico Trench, is . The bathymetry of the Atlantic is dominated by a submarine mountain range called the Mid-Atlantic Ridge (MAR). It runs from 87°N or south of the North Pole to the subantarctic Bouvet Island at 42°S. The MAR divides the Atlantic longitudinally into two halves, in each of which a series of basins are delimited by secondary, transverse ridges. The MAR reaches above along most of its length, but