Tsunamis can be caused by landslides or volcanic eruptions occurring on the surface of the ocean. I need to know what is the disstructive effect of the tsunami..... this really a helpful information to my school research project. Disease can also spread from the dead bodies that begin to rot on the ground once the water has subsided. The scars that are inflicted on the land can be present for decades to come, and this only serves as a reminder to people living in the area of the terrible losses caused by the tsunami, and the lingering danger that yet another killer tidal wave could strike at any moment with very little warning. In another study, 41 per cent of adolescents and approximately 20 per cent of those adolescents' mothers had PTSD four months after the event. Hundreds and thousands of people are killed by Tsunamis. The 2004 Indian Ocean earthquake and tsunami (also known as the Boxing Day Tsunami and, by the scientific community, the Sumatra–Andaman earthquake) occurred at 07:58:53 in local time on 26 December, with an epicentre off the west coast of northern Sumatra, Indonesia.It was an undersea megathrust earthquake that registered a magnitude of 9.1–9.3 M w, reaching a Mercalli intensity up to … Do not assume that after one wave the danger is over. The water leaves a trail of destruction that looks like an enormous bomb has exploded in the area. im scared of bodies, I am writing a report about tsunamis in 4th grade and Owlcation helped me out the most for my research THANK YOU FOR THIS WEBSITE, THANK YOU I AM FOURTH GRADER AND I AM WRITING A REPORT ABOUT TSUNAMIS THANKS, thanks this really helped a lot for my disaster management project, Thnx so much for completing my science exibition project. There are, however, a number of techniques that can minimize the harmful effects of tsunamis to the physical environment (including built structures) and to individuals and communities. If you live in a coastal area, ask your council about your tsunami risk and local warning arrangements. Then a wave blasts onto the shore minutes later, then another and another for two hours or more. After a tsunami sweeps through an area, the communities that were affected often need both immediate and long term help. Tsunami flooding then continues to cause damage for several more weeks. Click on the icons below to learn about how and where tsunamis occur, how to recognize a tsunami, how to evacuate before a tsunami arrives, and what geologists at the Washington Geological Survey are doing to learn more about these natural hazards. Fact. The sea water washes away the areas nearer to the shore. Governments around the world may help with the cost of bringing aid to a tsunami-hit area. Before: A fishing boat lies among tsunami debris in Otsuchi, Iwate prefecture, on March 31, 2011. Such earthquakes must be large enough to occur near or under the ocean where they create unnecessary movements under the sea floor. Tsunami Facts: How They Form, Warning Signs, and Safety Tips Tsunami damage is first caused by the immense force of the tidal wave hitting the shoreline. The tall and fast-moving waves also damage property and permanently alter the landscape, sometimes wiping out entire islands. Stagnant and contaminated water leads to malaria and other diseases, causing illness, infection, and death to spread rapidly. A large tsunami can travel many miles inland and wiping out entire coastal cities. Winds far in excess of 1000 kilometers per hour were possible near the impact site, although they decreased with distance from the impact site. Entire towns and villages are often destroyed in minutes. The severity of a tsunami’s effects depends on a number of factors, namely the magnitude of the earthquake, landslide or volcanic eruption, along with its distance from shore. Hi! The 1964 Alaska tsunami led to 110 deaths, some as far away as Crescent City, Calif. but only for one thing. The initial impact of the tsunami is often publicised across the world through the news media. A 2004 tsunami took some 230,000 lives in a matter of hours. There is very little warning before Tsunamis hit. It is difficult to put an excat figure on the monetary cost but is a lot. Many still have PTSD. They also destroy animal life, insects, plants, and natural resources. Environmental effects can include contamination of soil and water, permanent changes to the landscape, solid waste and disaster debris, and litter composed of hazardous materials and toxic substances. A tsunami watch goes into effect if a center detects an earthquake of magnitude 7.5 or higher. To investigate the effect of the 2004 tsunami on suicide rates in Sri Lanka. Whenever these earthquakes occur a… To get an idea of just how powerful a tsunami can be, take a look at the pictures below of the Thai navy boat 813. The effects of a tsunami are devastating. The tsunami that struck Japan in March 2011 left a total of 18,550 people killed and/or missing. They are one of the world's worst natural disasters that can hit a country.   It was the fifth most powerful earthquake ever recorded, and within 30 minutes, a 133-foot high tsunami pummeled Japan's northeastern shoreline. Many people from the Peraliya area of Sri Lanka where 2,000 people died and 450 families became homeless had problems up to two years after the tsunami. This made my homework much more easy!! Illnesses such as malaria form when water is stagnant and contaminated. Environmental effects can include contamination of soil and water, permanent changes to the landscape, solid waste and disaster debris, and litter composed of hazardous materials and toxic substances. Why Is the Keystone XL Pipeline Still So Disputed. Earthquake levels are instigated by meeting the earth’s tectonic plates along ‘fault lines’ of ‘faults’. These clean up efforts can take years, and significantly hurt the economy of the affected area. As the water rushes across the land it can sweep away yet more trees, gardens, garages, cars and other man made equipment. Conversely, secondary effects of tsunamis take place hours, days and weeks after the event. 1. The central effect of large tsunamis is massive loss of human life. This can cause more deeath and sickness. BACK TO QUESTIONS Return home only after local officials tell you it is safe. 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