{ Thailand Boxing Day Tsunami By Danielle Logan

On Sunday the 26 th of December,2004 (boxing day) a large tsunami hit Thailand and many countries surrounding it. The cause of the tsunami was a 9.0 magnitude earthquake. The epicentre of the earthquake was in the Indian ocean, left of Sumatra. The waves were recorded as being 30 metres high. There were many countries and regions affected by this tsunami other than Thailand such as Indonesia, Sri Lanka, India, the Maldives, Somalia, Kenya, Madagascar and South Africa.

Yellow= Places affected by the tsunami

Timeline of Tsunami 8:00-Local time A large 9.0 earthquake situated in the Indian ocean takes place. 9:45 People start to see the receding tide on Phutang beach in Thailand 10:20 Tsunami starts rapidly flooding Sumatra, Thailand and Malaysia. Tsunami hits Sri Lanka, India, Burma, Bangladesh and The Maldives. Lastly the tsunami hits Madagascar, Somalia, Kenya, Tanzania. 12:04 The water starts to drain from Thailand.

The earthquake was caused when the Indian Plate was subducted by the Burma Plate causing a series of tsunamis along the coasts of most land surrounding the Indian Ocean, killing over 230,000 people in fourteen countries. The Indian Ocean earthquake was an undersea mega thrust earthquake. The earthquake was caused when the Indian Plate was subducted by the Burma Plate causing a series of tsunamis along the coasts of most land surrounding the Indian Ocean, killing over 230,000 people in fourteen countries. Environment- Severe damage has been inflicted on ecosystems such as mangroves, coral reefs, forests, coastal wetlands, vegetation, sand dunes, rock formations, animal and plant biodiversity and groundwater. People- Diseases were a concern due to the high population density and warm climate of the area. The main concern was to provide sanitation facilities and clean drinking water to stop the spread of diseases such as cholera, diphtheria, dysentery and typhoid. There was also a concern that the death toll would increase as disease and hunger spread. In Thailand there was approximately 5,000 confirmed deaths and 8,000 estimated. Consequences

Technology and Monitoring Tsunami detection buoys ~ Deep-ocean tsunami detection buoys are used by scientists to confirm the existence of tsunami waves generated by undersea earthquakes. These buoys observe and record changes in sea level out in the deep ocean. This enhances the capability for early detection and reporting of tsunamis before they reach land. How do tsunamis detection buoys work ~ A tsunami buoy system includes two components; the pressure sensor anchored to the sea floor and the surface buoy. The sensor on the sea floor measures the change in height of the water column above by measuring changes in the water pressure. This water column height is communicated to the surface buoy by acoustic telemetry, then sent to a satellite and lastly to the tsunami warning centre.

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