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By Katherine and Connor

TSUNAMIS. By Katherine and Connor. What is a Tsunami and what causes one?. A Tsunami is a series of giant waves mainly caused by tremors/Earthquakes. They can also be caused by volcanic eruptions or meteorite impact. Consequences of a Tsunami.

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By Katherine and Connor

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  1. TSUNAMIS By Katherine and Connor

  2. What is a Tsunami and what causes one? • A Tsunami is a series of giant waves mainly caused by tremors/Earthquakes. • They can also be caused by volcanic eruptions or meteorite impact.

  3. Consequences of a Tsunami • Tsunamis cause an unimaginable amount of devastation. • They have the power to wipe out all manner of man made objects and machinery such as cars, houses and even FACTORIES!. • Tsunamis can cause a load of different after shocks as it causes damage to important structures.

  4. The Most Recent Tsunami • The Japan Tsunami is the most recent Tsunami. • The devastation happened on Friday 11 March 2011. • The Japanese National Police Agency has officially confirmed 11,004 deaths, 2,628 injured, and 17,399 people missing across eighteen regions , as well as over 125,000 buildings damaged or destroyed on 29 March • The earthquake and tsunami caused extensive and severe structural damage in Japan, including heavy damage to roads and railways as well as fires in many areas, and a dam collapsed. • Around 4.4 million households in north-eastern Japan were left without electricity and 1.5 million without water.

  5. Where do Tsunamis happen? • As mentioned a Tsunamis is a very fast and very large series of waves created when a large volume of water is shifted. The only way this can normally happen is a when a major earthquake, underwater landslide, or an equally high energy event occurs. • This limits where a tsunami can happen. For example tsunamis caused by earthquakes can’t happen unless the earthquake is 6.5 magnitude. • Four out of every 5 tsunamis that happen occur in the region called the Ring of Fire. This region that rings the Pacific Ocean basis has some of the most active plate boundaries in the world. If a major earthquake happens here is it will definitely be strong enough to cause a tsunamis.

  6. Systems and Buildings to prevent such damage in the future ? • A Tsunami Warning System (TWS) is a system to detect tsunami and issue warnings to prevent loss of life and property. It consists of two parts : a network of sensors to detect tsunamis and communication links to issue alarms to permit evacuation of coastal areas.

  7. How many Tsunamis are there every year ? • About 1000 tsunamis were recorded and verified so far but most of the tsunamis were small waves that had caused only minimal damage. Only 10% of the tsunamis were of catastrophic affect.

  8. THANK YOU FOR WATCHING We hope you enjoyed our presentation. THANK YOU

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