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New Islands Emerge After Anak Krakatau Eruption

3 October 2026 · ⏱ 2 ਮਿੰਟ · GS-I Geography — Volcanism

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ਖ਼ਬਰਾਂ ਵਿੱਚ ਕਿਉਂ?

Two new islands appeared in the Sunda Strait: the Krakatau volcanism facts GS-I Geography expects you to know

An Anak Krakatau eruption in the Sunda Strait has thrown up two new islands.

Why it matters: factual, Prelims-type

New Islands Emerge After Anak Krakatau Eruption
Lord Mountbatten · CC BY-SA 3.0 · Wikimedia Commons
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What you need to know

2 ਮਿੰਟ

Two new islands have emerged off Indonesia's Anak Krakatau volcano after a continuous eruption between 4 and 6 September 2026.

The formations were first noticed by mariners.

Anak Krakatau rises in the Sunda Strait, at the site of the 1883 Krakatau eruption.

ਸਰੋਤ: Topper IAS editorial (PIB / The Hindu / Indian Express)

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ਮੁੱਖ ਤੱਥ

Remember these

  • Two new islands emerged off Anak Krakatau after a continuous eruption between 4 and 6 September 2026
  • Mariners were the first to notice the new formations
  • Anak Krakatau rises in the Sunda Strait, between Java and Sumatra, Indonesia
  • It sits at the site of the catastrophic 1883 Krakatau eruption
  • Anak Krakatau means 'child of Krakatau'; it emerged from the caldera left by the 1883 eruption
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ਪ੍ਰੀਲਿਮਜ਼ · ਮੇਨਜ਼

How the exam will ask it

ਪ੍ਰੀਲਿਮਜ਼

  • Anak Krakatau is a volcanic island located in the Sunda Strait between Java and Sumatra.
  • Anak Krakatau grew in the caldera formed by the 1883 Krakatau eruption.
  • Indonesia lies on the Pacific Ring of Fire, a belt of intense volcanic and seismic activity.
  • Volcanic islands can form when repeated eruptions pile up lava and ash above sea level.

ਮੇਨਜ਼

GS-I Geography (physical geography: volcanism). Issue: eruptions can build new landforms, as at Anak Krakatau, but also threaten shipping and coastal areas through ashfall and tsunamis. Provision/policy: monitoring of volcanoes and early-warning systems along the Ring of Fire. Implication: coastal communities and sea lanes face risk. Way forward: continuous monitoring, hazard mapping and regional disaster-preparedness cooperation.

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Quick recall

Answer before you reveal

Anak Krakatau, the volcano whose recent eruption created new islands, lies in which strait?

  1. Strait of Malacca
  2. Lombok Strait
  3. Makassar Strait
  4. Sunda Strait
ਜਵਾਬ ਵੇਖੋ

ਜਵਾਬ: D — Correct: Sunda Strait — Anak Krakatau rises from the Sunda Strait between Java and Sumatra, on the site of the 1883 Krakatau eruption. • Strait of Malacca — wrong: The Strait of Malacca separates the Malay Peninsula from Sumatra and has no Krakatau volcano. • Lombok Strait — wrong: The Lombok Strait lies between Bali and Lombok, east of Java, and does not hold Krakatau. • Makassar Strait — wrong: The Makassar Strait separates Borneo from Sulawesi, far from Krakatau.

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