Fill in: tectonic, powerful, undersea, fault, giant, tremendous

1.The tsunami in Japan in 2011 caused..................damage.

2. An earthquake is a very............. natural force.

3.Tsunamis are.............. waves which can wipe out areas within seconds.

4. The places in the Earth's crust where...............plates meet and move against each other are called............. lines.

5.A(n) ........... earthquake 30 kilometres below sea level caused the 2004 Asian tsunami. ​