1. TSUNAMI
DONE BY: Sami Mubarak Khalfan Al-Ma’mary
ID: 59369

2. What is tsunami?
Causes of tsunami.
How do tsunami happened?
Characteristics of tsunami.
How to know that tsunami will occur?
Tsunami warning system.
Tsunami records.
Megatsunami.
Photos.

3. * What is Tsunami? * Causes of Tsunami
TSU = harbor, NAMI = waves
Scientific definition, large body of water is displaced,
high waves are created.
* Causes of Tsunami
Volcanic eruptions.
Earthquakes.
Underwater explosions.
Large meteorite impacts.
Weapons test underwater.

4. * How do Tsunami happen? Sea floor quickly change in shape.
2. Water is displaced.
3. Water tries to move back to
the normal situation and that
cause the creation of waves.

5. * Characteristics of Tsunami?
1. Waves move in high speed.
2. Travel large distances with little energy loss.
3. Cause damage thousands of miles away from its origin.
4. Take several hours between its creation and its impact
on the coast.

6. * How to know that tsunami
will occur?
Earthquake takes place near a body of water.
2. Water along the shoreline recedes dramatically.
3. some large animals like elephants move in the
opposite direction.
4. computer models can also detect tsunami arrival.
5. loud roar similar to a train or aircraft.

7. * Tsunami warning system.
a network of sensors to detect tsunamis.
2. a communications to provide alarms for evacuation
of coastal areas.

8. * Tsunami records. 1. The maximum death toll due to tsunami has been
283,000 in 2004 in the Indian Ocean.
2. The second largest has been 100,000 in 1755 in Portugal, Morocco and the United Kingdom.
3. The third largest is 70,000 in 1908 in Italy.

9. * Megatsunami. Have height more than 40 meters.
Acquire more height as they reach the land.
Also called, iminami or wave of purification

10. * PHOTOS:

11. * PHOTOS:

12. Questions?