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Macquarie Island

2023 MAR 20

Preliminary   > Geography   >   Places in news   >   Places in news

Why in news?

  • Australia announced plans to triple the size of the Macquarie Island Marine Park to protect the entire Exclusive Economic Zone around the island.
  • This proposed expansion would bring marine parks to 48.2 per cent of Australian oceans.

About Macquarie Island:

  • Macquarie Island is a sub Antarctic Ocean Island situated in the southwestern Pacific Ocean.
  • Politically, it is the portion of the Australian island nation of Tasmania, which is part of Oceania.
  • Macquarie Island is located around 1,501 kilometres southeast of Tasmania’s main island, almost halfway between New Zealand and Antarctica.


  • It is the only area on Earth where rocks from the Earth’s mantle are continuously revealed above sea levels.
  • This is the only piece of land in the world formed entirely of oceanic crust.
  • Macquarie Ridge is one of only 3 such ridges that impede the Antarctic Circumpolar Circulation.
    • This results in distinct differences between the west and east sides of the ridge, which are used in different ways by different species.


Macquarie Islands, recently seen in news, is located in:

(a) Pacific ocean

(b) Arctic Ocean

(c) Atlantic Ocean

(d) Indian Ocean