Tsunamis... How they are form

This is a video on Youtube on the tsunami's formation.

This powerful wave that cause so much devastation is not caused by the wind, but by

1) earthquakes

2) landslides

The power of the earth shaking and moving...

Taiwan Coasts

The pictures are from Yeh Liu, Taiwan. 

The coast is one formed by highly destructive waves. Look at the pictures to see the destructive power of the waves, and the beautiful features they formed. 

Highly destructive waves, hitting the cliffs that remain standing. 

The high erosive powers of the wave have shaped this coast, and signs are put up along the coast, with a red line, to warn people about the dangers. 

The famous Queen's head, a sedimentary rock feature shaped by the waves' erosive power. 

The new type of sea wall used to protect the coast from further erosion. 

A zoomed-in view of the seawall. 

Consider this: Why is it that this sea wall is not just a concrete wall, but made up of concrete pieces with such weird shapes? Think about the problems of a concrete wall along the coast, or the problems of the traditional seawall...