Answer in Brief
Identify and name the internal movement.
Tsunamis are generated in coastal areas.
Sudden internal movements within the earth’s crust below the ocean floor that lead to earthquakes and volcanic eruptions can cause tsunamis.
Explanation – A tsunami is a seismic sea wave which is caused by the displacement of a large volume of water, generally in an ocean or a large lake. This displacement can occur because of earthquakes or volcanic eruptions under the ocean floor both of which are categorized as sudden earth movements.
Concept: Earthquake and its causes
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