2. Tsunami By Lowri and Matthew Click this button to go to this page

3. How they happen How they happen Tsunamis are caused by an underwater earthquake, a volcanic eruption, and a sub-marine rockslide, or, more rarely, by and asteroid or meteoroid crashing into in the water from space. M Most tsunamis are caused by underwater earthquakes, but not all underwater earthquakes cause tsunamis - an earthquake has to be over about magnitude 6.75 on the Richter scale for it to cause a tsunami. A About 90 percent of all tsunamis occur in the Pacific Ocean.

4. damage Tsunami can course so much damage that it can nock down a really tall building. And the risks of people lives. Tsunami can course so much damage that it can nock down a really tall building. And the risks of people lives.

5. Tsunami records  Did you know tsunami are called tsunamis because TSU means harbour and NAMI means wave.

6. Information When an under sea earthquake or other major disturbance causes a section of the ocean floor to suddenly rise or sink, the mass of water above the affected area also rises or sinks. this unexpected movement of the water creates a series of powerful waves. When an under sea earthquake or other major disturbance causes a section of the ocean floor to suddenly rise or sink, the mass of water above the affected area also rises or sinks. this unexpected movement of the water creates a series of powerful waves.

7. Luckily tsunamis will never hit Swansea Luckily tsunamis will never hit Swansea

8. Quiz Q1) Where was the latest tsunami Q1) Where was the latest tsunami a) Japan Japan b) Oz Oz c) India India Q2) HOW MANY THINGS CAUSES A TSUNAMI. Q2) HOW MANY THINGS CAUSES A TSUNAMI. A) 100 100 b) 4 4 C) 3 ) 3) 3 Click on this to return to the quiz ?

10. ?

11. ?

12. CREDITS Directors Matthew Colborne and Lowri Johnson Directors Matthew Colborne and Lowri Johnson Editors Matthew Colborne and Lowri Johnson Editors Matthew Colborne and Lowri Johnson A Special thanks to Microsoft and Google A Special thanks to Microsoft and Google And thanks to that guy that made computers And thanks to that guy that made computers GOOD BYE GOOD BYE THANKYOU THANKYOU