A tsunami is a series of waves caused by the displacement of water, usually in an ocean. The 2004 Indonesia tsunami was one of the most destructive, along with the 1960 Valdivia, Chile tsunami, which destroyed the city of Hilo in Hawaii. Tsunamis are caused by earthquakes, landslides, and tectonic plate collisions. Precautions include protecting homes and pets, going to higher ground, and not swimming in tsunami waters. After a tsunami, there may be aftershocks, so it is important to be careful rebuilding.

1. TSUNAMI TSUNAMI A tsunami or tidal wave is a series of water waves (called a tsunami wave train) caused by the displacement of a large volume of a body of water, usually an ocean.

2. TSUNAMIS There have been a lot of destructive tsunamis, but the most destructive are them:  Indonesia 2004: The most recent tsunami, one of the most destructive.  Valdivia 1960: The greatest tsunami never known, it was terrible, it destroyed Hilo, a city in Hawaii.

3. TSUNAMIS EFFECTS CAUSES EARTHQUAKES LANDSLIDES PLATE´S CRASH DESTRUCTION POVERTY DEAD

4. PRECAUTIONS (before) Protect your house and your pets Do not stay near the coast Go out to another country Keep everything in a secure place

5. PRECAUTIONS (during) Go to a higher place You aren't able to swim in this water. Don't try it! You should not film the wave RUN! You not ought to stay in the street

6. Tsunami´s diagram TSUNAMI´S DIAGRAM

7. PRECAUTIONS (after) There will be some Earthquakes. Be careful! Don't build any houses. They will fall off.

8. TSUNAMI´S ORIGIN

9. EARTHQUAKE´S PLACES Placa de Nazca Placa Sudamericana

10. 1. AN EARTHQUAKE WITH AN INTESITY > 7.5° (?) 2. EARTHQUAKE´S EPICENTER IN THE SEA 3. DEPHT: < 60 Km. 4. THE EARTHQUAKE MUST GENERATE THE PISTON´S EFFECT IN THE SEA CONDITIONS TO OCCUR A TSUNAMI

11. HOW A TSUNAMI IS

12. D E S T R U C T I O N Galle – Sr i Lanka Banda Aceh Indonesia Indonesia

13. D E S T R U C T I O N Penang - Malasya Banda Aceh - indonesia Islas Phi Phi_Tailandia

14. SUMATRA, DICEMBRE 2004