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On December 26, 2004 a tsunami that originated in Indonesia wreaked havoc on the eastern coast of South India causing imaginable destruction.The effects of the tsunami were felt as far as South Africa. What caused it?
- a)Hurricane Katrina
- b)Underwater Earthquake
- c)River Floods
- d)Volcanic Eruption
Correct answer is option 'B'. Can you explain this answer?
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On December 26, 2004 a tsunami that originated in Indonesia wreaked ha...
Causes of the 2004 Indian Ocean tsunami:
- Underwater Earthquake: The tsunami was triggered by a massive underwater earthquake with a magnitude of 9.1-9.3 on the Richter scale. The earthquake occurred off the west coast of northern Sumatra, Indonesia.
- Subduction Zone: The earthquake occurred along a subduction zone, where one tectonic plate is forced beneath another. In this case, the Indian Plate was subducting beneath the Burma Plate, causing the seafloor to uplift and displace a large volume of water.
- Vertical Displacement: The earthquake caused a vertical displacement of the seafloor, resulting in the formation of a tsunami wave. The sudden movement of the seafloor pushed the water column above it, generating a series of powerful waves.
- Propagation: The tsunami waves radiated outward from the epicenter in a circular pattern, traveling across the Indian Ocean at high speeds.
- Impact on South India: The tsunami waves reached the eastern coast of South India, causing widespread devastation. Coastal areas were flooded, homes and infrastructure were destroyed, and thousands of lives were lost.
- Global Impact: The tsunami waves traveled across the Indian Ocean, affecting countries as far as South Africa. The waves dissipated as they traveled, but still caused significant damage and loss of life in coastal regions.
In conclusion, the 2004 Indian Ocean tsunami was caused by an underwater earthquake along a subduction zone off the coast of Indonesia. The earthquake resulted in a vertical displacement of the seafloor, generating powerful tsunami waves that propagated across the Indian Ocean and impacted coastal regions, including South India and even South Africa.
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On December 26, 2004 a tsunami that originated in Indonesia wreaked havoc on the eastern coast of South India causing imaginable destruction.The effects of the tsunami were felt as far as South Africa. What caused it?a)Hurricane Katrinab)Underwater Earthquakec)River Floodsd)Volcanic EruptionCorrect answer is option 'B'. Can you explain this answer?
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