How do tsunami create?

because of earthquake under the sea

A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, which results of an earthquake below or near the ocean floor

Explanation:

economic

the economic difference between the three colonial regions. shipbuilding, whaling, fishing, and trapping where also main factors to the economy. the southern regional colonies economy was based on sugarcane, rice, cotton, tobacco, and indigo.