What is the relationship between tsunami and earthquakes?

Answer 1

Earthquakes often generate tsunamis. See the related link below:

Answer 2

Tsunamis are often triggered by underwater earthquakes, specifically those that occur along subduction zones where tectonic plates converge or diverge. The sudden movement of the Earth's crust displaces a large volume of water, generating a series of powerful waves that can travel long distances across the ocean. Other factors, such as volcanic eruptions or underwater landslides, can also generate tsunamis.

Answer 3

Earthquakes cause tsunamis by suddenly moving large volumes of water on the ocean floor. This is transferred through the ocean as a force that pushes water ashore.