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What is Pacific ‘ring of fire’? Why do majority of volcanoes and earthquakes occur along this region?. (200 Words, 15)
Pacific ring of fire is an almost circular arc region that spans for about 40,000 km along the coasts of New Zealand, Tonga, Indonesia, Philippines, Japan, western coast of North America and South America.
Characteristics of ring of fire
Characteristics of ring of fire
- Host of geological activities About 75 per cent of the world’s volcanoes are located along the belt. More than 90% of world’s earthquakes take place here.
- Plate boundaries The region is made up of several tectonic plates such as Pacific plate, Philippine Plate, Juan de Fuca plate, Cocos plate, Nazca plate, and North American plate.
- Occurrence of trenches The trenches are most visible characteristic of Pacific ring of fire. They are formed due to the subduction process.
- Intersection of plates A number of tectonic plates join with each other along the ring of fire. These plates converge from time to time, creating subduction zones.
- Subduction zone During the process of subduction, rocks melt, become magma and move to Earth’s surface and cause volcanic activity.
POSTED ON 28-02-2022 BY ADMIN
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