Question

Why do earthquakes often happen near subduction zones?

Answer 1

Answer:

D.Subduction zones are near plate boundaries

Explanation:

Subduction zones are plate boundaries where two plates meet ,one plate is thrust beneath the other.Due to this earthquakes and Volcanic eruptions occurred. this geohazard affects millions of people around the globe, specifically at edge of the Pacific Ocean.This edges consists of many subduction zones. Megathrust is the largest earthquake occurred at the interface between the boundaries of the two plates.  

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Answer 2

Answer:

Option (D)

Explanation:

Subduction zones result from the convergent movement of tectonic plates. When two plates move towards each other, the denser plate subducts below the less dense one and a zone is formed which is commonly known as the subduction zone. The rocks undergo partial melting as the denser plate reaches the layer of the asthenosphere. Due to this movement of the crust beneath the earth, the rock breaks and releases some amount of energy in the form of seismic waves. This results in the generation of deep-focus earthquakes near the subduction zone.

Due to this, there occur frequent earthquakes near the zone of subduction, where two plates share a convergent type of plate boundary.

Thus, the correct answer is option (D).