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2004 Indian Ocean Earthquake and Tsunami

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shehani gunasekera

on 3 March 2013

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Transcript of 2004 Indian Ocean Earthquake and Tsunami

BIOSPHERE AND ATMOSPHERE Description of the Eruption Earthquake/Tsunami Diagrams LITHOSPHERE AND HYDROSPHERE In terms of the disadvantages earthquakes have to the lithosphere, they can create ruptures in the ground as well as cause severe damage to buildings. The risk of land materials e.g. buildings getting damaged are increased if the earthquake triggers a tsunami. The rupture travelled at 2.8 km/h.

Earthquakes also pose disadvantages for the hydrosphere for they can trigger tsunamis. The Tsunami occurred as the India plate and Burma plate suddenly snapped displacing huge volumes of water. Also the Tsunami created would have brought many chemicals and waste with it as it was drawn back to the ocean from land. This will cause some water supplies to be heavily polluted therefore the people of these countries will not have clean water supply or even safe drinking water. Benefits: The earthquake created new heights in human compassion as roughly over 14 billion $US were donated world-wide in an attempt to repair the lives with have been broken. In times of crisis people from around the world unite. The donation of humanitarian aid with these countries also develop global links between the developing and developed world.
Disadvantages: There are mass amounts of lives lost as a result of the earthquake and tsunami. So too, many homes (people) and habitats (animals) were destroyed in the process. This natural disaster has created disruption in the ecosystem as well as destroyed peoples livelihoods e.g. crops/plant life. 2004 Indian Ocean Earthquake and Tsunami By Shehani, Abi, Fatima On Sunday the 26th of December 2004, the earth shook underneath the Indian Ocean triggering what would be known as the third most horrific earthquake ever to be recorded in history. Entitled the Sumatra-Andaman Earthquake by the scientific community reached a magnitude of 9.1-9.3. Countries which were majorly affected by the earthquake included Indonesia, Srilanka, India and Thailand. The estimated death toll ranges over 230 000 individuals originating from fourteen different countries. In terms of plate tectonics, the earthquake occurred as a result of the 1600 kilometres of fault surface slipping 15 metres along the subduction zone. The subduction zone is where the India plate(part of the Indo-australian plate) slides under the Burma plate. The duration of the faulting/slip took between 8.3-10 minutes. The enormity and power of the earthquake is said to have shaken the planet roughly 1 cm. The Earthquake and Tsunami Disadvantages: As a result of an earthquake gas emissions on the ground then release toxic gases which are then unleashed into the atmosphere. A positive impact of earthquakes in general is the information geologists can obtain from it. Through measuring the way that the vibrations of the earthquake travels, it enables them to make assumptions about the materials these vibrations pass through. Hence this may enable them to determine where natural gas and oil deposits are. Other positive effects of earthquakes include their powers of creation. Earthquakes can create volcanoes above destructive plate boundaries. As these volcanoes erupt they provide nutrients for the soil and the ash can minerals that are beneficial to plant life. Volcanoes can also create new fertile land. Earthquakes are also able to develop mountains and rivers which add much beauty to our earth. Other General Impacts of Earthquakes
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