Tsunami anglais

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Tsunami anglais

  1. 1. THE TSUNAMIS THE GREAT WAVE BY KANAGAWA PUBLISHED IN 1830
  2. 2. WHAT IS IT ? ● A tsunami is a huge wave with an extreme height which has enough power to destroy a whole city. These waves are exceptionnal, very impressive and very dangerous.
  3. 3. HOW DOES IT APPEAR ? ● A tsunami is mainly caused by an underwater earthquake which will create small, but very fast waves. While approaching the coast, the depth of the water will decrease fast. That will cause the waves to slow down and grow to an height which can reach 30 meters.
  4. 4. ITS EFFECTS ● A tsunami has an enormous destructive power. They are the cause of many disasters, like in Japan in 2011.
  5. 5. ● Here is a before /after picture for you to understand its effects.
  6. 6. WHAT DO WE THINK ● We think that the tsunamis are one of the most dangerous natural disasters because it is hard to be protected from them. They are very destructive and fascinating.
  7. 7. HOW TO BE PROTECTED ? ● In Japan,in the port of Nomazu, there is a 9,3 meters gate which closes if it detects an earthquake. This device can be very effective, but it can't protect from a giant tsunami.

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