GEOLOGY

Detailed explanation-1: -Tsunamis and storm surges are caused by different events but both result in flooding and damage to coastal areas. Tsunamis are immense sea waves (10 metres or more), which are produced by underwater events such as earthquakes, mudslides and volcanic eruptions.

Detailed explanation-2: -Generally tsunamis arrive, not as giant breaking waves, but as a forceful rapid increase in water levels that results in violent flooding. However, when tsunami waves become extremely large in height, they savagely attack coastlines, causing devastating property damage and loss of life.

Detailed explanation-3: -There are three types of floods-flash floods, river floods, and coastal floods.

Detailed explanation-4: -For the most part there are five different types of floods: flash floods, coastal floods, urban floods, river floods, and ponding floods.