Which of the following statements are true in the context of earthquakes and tsunamis?

1.An earthquake is mainly caused by the collision of tectonic plates

2.The immediate energy source for earthquakes is stored elastic energy in bent rock

3.Tsunami is a series of waves caused by a strong sea earthquake or landslide

4.Japan is known for its frequent earthquakes

A1, 2 and 3

B2, 3 and 4

C1, 2, 3 and 4 ✓ Correct

D1, 2 and 4

Correct answer: (C) 1, 2, 3 and 4

Explanation

All four statements about earthquakes and tsunamis are correct.

Statement 1 is right: earthquakes mainly result from the collision and movement of tectonic plates.

Statement 2 is right: the immediate release comes from elastic strain energy stored in bent rock.

Statement 3 is right: a tsunami is a series of waves triggered by a strong sea earthquake or landslide.

Statement 4 is right: Japan sits on the Ring of Fire and experiences very frequent earthquakes.

The elastic-rebound of strained rock along faults is what suddenly releases seismic energy.

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