The Indian Ocean Disaster: What happened

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The Indian Ocean DisasterWhat happened?
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When December 26 - Boxing Day What A series of
large waves (3-6m) crashed without warning onto
coastlines Where Indian Ocean Result 150,000
dead, many children millions homeless, without
shelter, water, food entire communities
destroyed economies devastated
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Indian Ocean
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India
Sri Lanka
Somalia
Indonesia
Australia
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Tsunami - soo - nam - ee Japanese word meaning
large wave
Not a tidal wave no such thing as a tidal
wave
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What does it take to cause this vast amount of
destruction over such a huge area?
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• Energy
• Unbelievably huge amounts of energy
• Few natural processes can impart that much
  energy
• volcanoes
• landslides
• earthquakes
• The Indian Ocean tsunami was created by an
  earthquake.

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Earthquakes are measured by their magnitude. For
each whole number increase, the magnitude
increases by 10. So, 7 is ten times greater than
6 8 is a hundred times greater than 6 9 is a
thousand times greater than 6. This earthquake
measured 9.2 - one of the biggest ever recorded.
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How much energy was released by this
earthquake? Approximately 20X1017 Joules 475,000
kilotons (475 megatons) of TNT 23,000
Hiroshima-size atomic bombs.
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Indonesia
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Official figures indicate that at least 139,253
people were killed in 11 countries in Asia and
Africa in the massive earthquake and tsunamis
Dec. 26. The United Nations estimates the total
number of dead will exceed 150,000.
Indonesia 94,081Sri Lanka 30,196India
9,479Thailand 5,046Somalia 200Myanmar
90Maldives 80Malaysia 68Tanzania
10Bangladesh 2Kenya 1