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Archipelago

    Philippine SeaJapan

    27°00′N 142°10′E

    Ogasawara Islands

    Part of Nanpō Islands

    The Bonin Islands, also known as the Ogasawara Islands (Japanese: 小笠原諸島), are a Japanese archipelago of over 30 subtropical and tropical islands located around 1,000 kilometers (620 mi) SSE of Tokyo and 1,600 kilometers (1,000 mi) northwest of Guam.

    剣先山(東京都小笠原村 母島)より沖港を望む, Oki on Hahajima Island
    剣先山(東京都小笠原村 母島)より沖港を望む, Oki on Hahajima Island

    しんかわな / CC BY-SA 3.0

    Chart

    2268 landforms

    Overview

    The Bonin Islands, also known as the Ogasawara Islands (Japanese: 小笠原諸島), are a Japanese archipelago of over 30 subtropical and tropical islands located around 1,000 kilometers (620 mi) SSE of Tokyo and 1,600 kilometers (1,000 mi) northwest of Guam. The group as a whole has a total area of 84 square kilometers (32 sq mi) but only two of the islands are permanently inhabited, Chichijima and Hahajima. Together, their population was 2,560 as of 2021. Administratively, Tokyo's Ogasawara Subprefecture also includes the settlements on the Volcano Islands and the Self-Defense Force post on Iwo Jima. The seat of government is Chichijima. Because of the Bonins' isolation, many of their animals and plants have undergone unique evolutionary processes. They have been referred to as the "Galápagos of the Orient" and were named a Natural World Heritage Site in 2011. When first reached during the early modern period, the islands were entirely uninhabited, although subsequent research has found evidence of some prehistoric habitation by Micronesians. Upon their repeated rediscoveries, the islands were largely ignored by the Spanish, Dutch, and isolationist Japanese until finally being claimed by a passing British captain in 1827. American, European, and Hawaiian colonists arrived from the Kingdom of Hawaii in 1830. Subsequently, Meiji Japan successfully colonized and reclaimed the islands in 1875, but Bonin Islanders' community continued up to World War II, when most islanders were forcibly relocated to Honshu. Following Japan's defeat, the US Navy occupied the island, bulldozing existing Japanese homes and restricting resettlement until full control of the Bonins was returned to Japan in 1968. Ethnically, the island is now majority Japanese but remains unusually diverse, which is reflected in the local Creole language known as Bonin English. Improved transportation has made agriculture more profitable and encouraged tourism, but the development required for an airport remains a contentious local issue.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands6
    • Minor islands17
    • Islets271
    • Rocks & skerries1,974

    Major islands

    6
    • Iwo Jima

      Iwo Jima

      Area
      30 km²
      High point
      170 m

      mä́], lit. tó̞ó̞]), is one of the Japanese Volcano Islands, which lie south of the Bonin Islands and together with them make up the Ogasawara Archipelago. Together with the Izu Islands, they make up Japan's Nanpō Islands.

    • Chichijima

      Chichijima

      Area
      23.8 km²
      High point
      320 m

      Chichijima (Japanese: 父島) is the largest and most populous of the Bonin Islands. Chichijima is about 240 km (150 mi) north of Iwo Jima. 1 sq mi) in size, the island is home to about 2,120 people (2021).

    • Hahajima

      Hahajima

      Area
      20.2 km²
      High point
      462 m

      Hahajima, Haha Jima, or Haha-jima (母島; meaning Mother Island) is the second-largest island within the Bonin or Ogasawara Islands south southeast of the Japanese Home Islands. The steeply-sloped island, which is about 21 km2 (8 sq mi) in area, has a population of 440.

    • Anijima

      Anijima

      Area
      7.9 km²
      High point
      254 m
    • North Iwo Jima

      North Iwo Jima

      Area
      5.6 km²
      High point
      792 m

      North Iwo Jima (Japanese: 北硫黄島, Kita Iwōjima, "North Sulfur Island"), officially North or Kita Iōtō (written with the same characters) and previously known as Santo or San Alessandro, Hooge Meeuwen Island (Dutch: t'Hooge Meuwen Eylandt, "High Seagull Island"), and North Sulfur Island, is the northernmost member of Japan's Volcano Islands.

    • Otōtojima

      Otōtojima

      Area
      5.2 km²
      High point
      299 m

      Otōtojima, Otōto-jima, or Otōto Jima (弟島, meaning Younger Brother Island), is an uninhabited island in the Chichijima archipelago of Japan's Ogasawara Islands. During the Meiji and Taishō eras between 50 and 100 people lived on the island, but it was deserted in 1944. The island is off-limits for tourists.

    Minor islands

    17

    Rocks & skerries

    1974

    On the chart above, at its closest zooms.

    Listing 23 of 2268; the rest are on the chart.

    Figures

    Comparative heights

    Sea level500 m1,000 m916 mSouth Iwo Jima792 mNorth Iwo Jima462 mHahajima320 mChichijima299 mOtōtojima254 mAnijima216 mImōtojima170 mIwo Jima155 mNakōdo137 mMukōjima135 mNishinoshima113 mAnejima113 mMeijima105 mYomejima
    High points by island, metres above sea level.

    Islands by area

    0.1110100Iwo Jima: 30 km²Iwo JimaChichijima: 23.8 km²ChichijimaHahajima: 20.2 km²HahajimaAnijima: 7.9 km²AnijimaNorth Iwo Jima: 5.6 km²North Iwo JimaOtōtojima: 5.2 km²OtōtojimaNishinoshima: 3.8 km²NishinoshimaSouth Iwo Jima: 3.5 km²South Iwo JimaMukojima: 2.5 km²MukojimaMinamitorishima: 1.5 km²MinamitorishimaAnejima: 1.4 km²AnejimaMukōjima: 1.4 km²MukōjimaNakōdo: 1.3 km²NakōdoImōtojima: 1.2 km²ImōtojimaMeijima: 0.87 km²MeijimaYomejima: 0.61 km²YomejimaNishijima: 0.49 km²NishijimaHirajima: 0.48 km²HirajimaMinamijima: 0.29 km²MinamijimaHigashijima: 0.25 km²HigashijimaKangoku Rock: 0.18 km²Kangoku RockKitanoshima: 0.14 km²KitanoshimaMagojima: 0.12 km²Magojima
    km², log scale
    Iwo Jima30 km²
    Chichijima23.8 km²
    Hahajima20.2 km²
    Anijima7.9 km²
    North Iwo Jima5.6 km²
    Otōtojima5.2 km²
    Nishinoshima3.8 km²
    South Iwo Jima3.5 km²
    Mukojima2.5 km²
    Minamitorishima1.5 km²
    Anejima1.4 km²
    Mukōjima1.4 km²
    Nakōdo Island1.3 km²
    Imōtojima1.2 km²
    Meijima0.87 km²
    Yomejima0.61 km²
    Nishijima0.49 km²
    Hirajima0.48 km²
    Minamijima0.29 km²
    Higashijima0.25 km²
    Kangoku Rock0.18 km²
    Kitanoshima0.14 km²
    Magojima0.12 km²

    Groups within

    2

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Wikidata
    • Wikipedia

    Photographs