MOUNT IBU (Syllabus: GS Paper 1 – Geography)

News-CRUX-10     25th May 2024        
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Context: Recently, Mount Ibu erupted again, sending ash 4 km high, as streaks of purple lightning flashed around its crater.

Mount Ibu

  • Location: Mount Ibu is situated on Halmahera Island in North Maluku province, eastern Indonesia.
  • Eruption History: It is one of Indonesia's most active volcanoes, with frequent eruptions recorded over the years.
  • Recent volcanic eruption in Indonesia:

o Recently Sulawesi's Ruang volcano has erupted.

o Marapi volcano, one of Sumatra's most active volcanoes has also erupted recently.

  • Mountain Semeru: Active volcano in East Java, Indonesia.

o It is located in a subduction zone, where the Indo-Australian plate subducts under the Eurasian plate.

  • Reason: Indonesia, a vast archipelago nation, experiences frequent seismic and volcanic activity due to its position on the Pacific "Ring of Fire".


  • About: Indonesia is a country located off the coast of mainland Southeast Asia in the Indian and Pacific oceans.

o It is an archipelago that lies across the Equator and spans a distance equivalent to one-eighth of Earth’s circumference.

  • Archipelagic Nature and Size: Indonesia is the world’s largest island country with more than 17,000 islands. Its vast expanse covers a significant portion of the Earth's surface.
  • Land boundaries: Papua New Guinea, East Timor and Malaysia
  • Maritime boundaries with: Singapore, Philippines, Vietnam, Palau and Australia.