Баранова, Starlight 8. Учебник. Module 1h

I know that tsunamis are huge waves that can cause terrible damage to coastal areas.
1 Why do they happen? (They are usually caused by an undersea earthquake.)
2 Why is there sometimes more than one at a time? (There are often other waves following a tsunami because of the ripple effect.)
3 How destructive can a tsunami get? (It can cause the loss of life, flatten buildings and trees and destroy whole ecosystems.)

1G 2E 3В 4C 5F 6D
1 undersea/underwater
2 move suddenly
3 the water ripples
4 wave moves, hit shore/strong and fast tide
5 slowly get smaller
6 powerful force, loss of life

1 earthquake
2 tectonic plates
3 pebble/scale
4 shore/inland/path
5 flatten

I have learned what causes a tsunami.
Not all tsunamis are giant waves, some are strong tides.
An undersea earthquake usually happens on a fault line.
I didn’t know there were underwater volcanoes.

The word ‘tsunami’ comes from a Japanese word which means ‘harbour wave’.
Testing nuclear devices by exploding them under the sea can cause a tsunami.
A historian in ancient Greece first made the connection between tsunamis and underwater earthquakes.
The wave travels very fast and increases in height only when it reaches shallow water.