Tsunami
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What is the Sumatra Tsunami?
Photo by Stuck in Customs
Tsunami is a Japanese word ; 'tsu' meaning harbour and ,'nami' meaning wave. The tsunami I chose was the tsunami in Indonesia named the Sumatra tsunami. This tsunami is the most dangerous tsunami ever recorded as it is number 1 in the most dangerous tsunamis.
The 9.1 magnitude earthquake off the coast of Sumatra was estimated to occur at a depth of 30 km. The fault zone that caused the tsunami was around 1300 km. The tsunami was probably as tall as 50 m, reaching 5 km inland.
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When did it occur?
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The tsunami occurred on the 26th of December in 2004. That would mean this happened exactly after Christmas. Everyone in Indonesia would be devastated after a very exciting event that has happened before the tsunami hit.
Photo by Justin in SD
This dangerous tsunami occurred near the epicentre off the west coast of Sumatra. It was near the Indonesian City of Banda AcehGetty. The Sumatra tsunami also hit parts of Indonesia, Sri Lanka, India, Malaysia and Thailand.
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Who were involved and affected?
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The dangerous Sumatra tsunami affected a total of 8 countries. They were India, Malaysia, Maldives, Myanmar, Somalia, Sri Lanka, Thailand and especially the most affected country of them all is Indonesia.
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From India around 10,000 people were confirmed dead, there were 5,000 people missing. In Indonesia 131,028 deaths and 37,000 people were missing. In Malaysia the number of deaths currently stands at 68 with 5 people missing. In the Maldives, 82 people were killed during the tsunami and 26 were reported missing and also presumed dead. In Maynmar 90 people killed due to the tsunami. The official death toll is 61. Witnesses in Myanmar estimate up to 600 deaths.
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How was it caused?
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The Sumatra tsunami was mainly caused by the 2004 Indian Ocean underwater earthquake, also called the Sumatra-Andaman. It happened on December 26, 2004. The epicentre of the earthquake was off the west coast of Sumatra, Indonesia. At first, the earthquake was measured as a 9.0 on the Richter scale.
A Richter scale is a scale that measures how big a earthquake is. Later, scientists said it was as high as a 9.3. The earthquake also was the longest ever recorded. It lasted between 8.3 minutes - 10 minutes. It was so powerful that it caused the entire Earth to vibrate. It started other earthquakes as far away as Alaska.
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Could the Sumatra tsunami been avoided?
Photo by Thomas Hawk
YES
If they had tide gauges installed, many of these people that were farther away from the epicentre or near the epicentre could have been saved. They would have survived because they would have been able to track the waves. They would have told the people along the coast area to move off the beach and give them an approximate time before the waves were going to hit.
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Thank you for listening 6BD and Mr Bamford
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