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Archipelago

    Sea of JapanJapan

    37°36′N 136°53′E

    Nanatsujima islets

    七ツ島

    The Nanatsujima islets are a group of uninhabited small islands with a collective land area of 24 ha. They lie in the Sea of Japan about 20 km off the northern tip of the Noto Peninsula in Ishikawa Prefecture, Japan.

    輪島市の沖、七ツ島北部（右（東）側から、大島、狩又島、竜島）の空中写真。Ccb-75-18_c43_3を使用。
    輪島市の沖、七ツ島北部（右（東）側から、大島、狩又島、竜島）の空中写真。Ccb-75-18_c43_3を使用。

    国土交通省 / Attribution

    Chart

    53 landforms

    Overview

    The Nanatsujima islets are a group of uninhabited small islands with a collective land area of 24 ha. They lie in the Sea of Japan about 20 km off the northern tip of the Noto Peninsula in Ishikawa Prefecture, Japan. The archipelago comprises two islet groups; a northern group (Tatsujima, Ohshima and Karimatajima), and a southern group (Akashima, Aramikojima, Eboshijima and Mikuriyajima). They are composed of volcanic rocks, either andesite or tuff breccia. The largest islet, Ohshima, has a land area of 12.6 ha with its highest point 62 m above sea level. The other islets have almost perpendicular cliffs about 40 m in height.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands1
    • Minor islands0
    • Islets18
    • Rocks & skerries34

    Major islands

    1

    • Ōshima

      Area
      0.12 km²
      High point
      61 m

    Islets

    18
    • Aramikojima59 m · 0.06 km²
    • Mikuriyajima38 m · 0.04 km²
    • Unnamed island12 m · 0.03 km²
    • Tatsujima4 m · 0.02 km²
    • Akajima8 m · 0.01 km²
    • Unnamed island2 m · 0.8 ha
    • Eboshijima4 m · 0.7 ha
    • Unnamed island4 m · 0.3 ha
    • Karimatajima0.3 ha
    • Unnamed island3 m · 0.2 ha
    • Unnamed island4 m · 0.2 ha
    • Unnamed island4 m · 0.2 ha

    Rocks & skerries

    34
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha
    • Unnamed island<0.1 ha

    Figures

    Comparative heights

    Sea level20 m40 m60 m80 m61 mŌshima59 mAramikojima38 mMikuriyajima8 mAkajima4 mTatsujima4 mEboshijima
    High points by island, metres above sea level.

    Islands by area

    0.000010.00010.0010.010.11Ōshima: 0.12 km²ŌshimaAramikojima: 0.06 km²AramikojimaMikuriyajima: 0.04 km²MikuriyajimaUnnamed island: 0.03 km²Unnamed islandTatsujima: 0.02 km²TatsujimaAkajima: 0.01 km²AkajimaUnnamed island: 0.8 haUnnamed islandEboshijima: 0.7 haEboshijimaUnnamed island: 0.3 haUnnamed islandKarimatajima: 0.3 haKarimatajimaUnnamed island: 0.2 haUnnamed islandUnnamed island: 0.2 haUnnamed islandUnnamed island: 0.2 haUnnamed islandUnnamed island: 0.2 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed island
    km², log scale
    Ōshima0.12 km²
    Aramikojima0.06 km²
    Mikuriyajima0.04 km²
    Unnamed island0.03 km²
    Tatsujima0.02 km²
    Akajima0.01 km²
    Unnamed island0.8 ha
    Eboshijima0.7 ha
    Unnamed island0.3 ha
    Karimatajima0.3 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.2 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha

    Sources

    Facts

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

    Photographs