, or ) is an uninhabited Japanese island in the Pacific Ocean. The volcanic island is part of the Izu Islands. Geography Tori-shima is located in the Philippine Sea approximately south of Tokyo and north of Lot's Wife. The roughly circular-shaped island is listed as a Class A active volcano by the Japan Meteorological Agency. The island is the above-water portion of a submarine volcano, whose submerged caldera portion to the north of the island continues to erupt underwater. Volcanic activity on the island itself was last recorded in 2002, accompanied by earthquake swarms. The main peak on the island, has a height of , and the island has a circumference of . The total area of the island is . History Tori-shima was known to Japanese fishermen and mariners since at least the early Edo period, but was uninhabited aside from occasional shipwreck survivors. In 1841, 14-year-old Nakahama Manjirō and four friends were shipwrecked on Tori-shima until rescued by the American whaleship John Howland commanded by William H. Whitfield. Japanese writer Akira Yoshimura researched and wrote about 15 similar instances. The island was settled in Meiji period, with the primary economic activity being the gathering of guano from the abundant short-tailed albatross, who use the island as their nesting grounds. A major volcanic eruption was recorded in 1871. The island was administratively grouped with the Ogasawara islands in August 1898, but was transferred to the administration of Hachijojima in April 1901. The population of 150 inhabitants was killed by a major volcanic eruption in 1902. Torishima was never repopulated. Since the 1930s, the Yamashina Institute for Ornithology has taken a very active role in researching and attempting to preserve the local seabird species, especially the short-tailed albatross, which had been reduced to an estimated 50 birds by 1933. The Japan Meteorological Agency established a weather station and volcanic research station on the island in 1947, but this was abandoned in 1965 due to volcanic activity and earthquakes. On November 1, 1954 Tori-shima was proclaimed a protected bird sanctuary. This designation was increased to that of a protected national Natural monument on May 10, 1965. It can only be visited by research scientists with special permission, and landing on the island is very difficult due to heavy seas and lack of suitable landing beaches or facilities. Tour boats which take people around the island to view the birds are popular,