Consider the following statements: 1. Most known volcanic activity and the earthquakes occur along converging plate margins and mid-oceanic ridges. 2. Barren Island in the Andaman and Nicobar Islands is the only active volcano in India. Which of the following statements is/are correct?
Consider the following statements: 1. Most known volcanic activity and the earthquakes occur along converging plate margins and mid-oceanic ridges. 2. Barren Island in the Andaman and Nicobar Islands is the only active volcano in India. Which of the following statements is/are correct? Correct Answer Both 1 and 2
The correct answer is Both 1 and 2.
Key Points
- Distribution of Earthquakes and Volcanoes across the World
- Most known volcanic activity and earthquakes occur along converging plate margins and mid-oceanic ridges. Hence, statement 1 is correct.
- It is said that nearly 70 per cent of earthquakes occur in the Circum-Pacific belt.
- Another 20 per cent of earthquakes take place in the Mediterranean-Himalayan belt including Asia Minor, the Himalayas, and parts of northwest China.
- The belts of the highest concentration are the Aleutian-Kurile islands arc, Melanesia and New Zealand-Tonga belt.
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- Volcanos in India
- There are no volcanoes in the Himalayan region or the Indian peninsula.
- Barren Island is the only active volcano in the Andaman and Nicobar Islands in India. Hence statement 2 is correct
- It is now considered an active volcano after it spewed lava and ash in 2017.
- The other volcanic island in Indian territory is Narcondam, about 150 km northeast of Barren Island; it is probably extinct.
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Feb 20, 2025