Effects of Earthquake Essay

Primary cause are the immediate damage caused by the quake, such as collapsing buildings, roads and bridges, which whitethorn kill many people. Those lucky enough to survive can suffer badly from shock and panic.Secondary effects are the after-effects of the earthquake, such as fires, tidal waves, landslides and disease.Fire earthquakes destroy gas pipes and electric cables, causing fires to spread. Broken water mains prevent the Fires being extinguished. Fires spread truly quickly in cities, especially in poor-quality housing areas where wooden buildings are common. Tsunamis an earthquake on the sea floor or close to the coast may cause huge waves. Landslides earthquakes often cause landslides, especially in steep river valleys and areas of weak rocks. Disease and famine fresh water supplies are often sheer off causing typhoid and cholera. Lack of shelter and food causes much suffering. soil liquefaction when soils with a high water content are violently shake they lose thei r mechanical strength and behave like a fluid and so buildings can literally sink. Excellent clip 2011 Japan TsunamisMega tsunami caused by a landslide July 9th 1958ExplanationOutline causes A tsunami can be generated when destructive plate boundaries abruptly move and justly displace the overlying water. It is very improbable that they can form at constructive or conservative plate boundaries. This is because constructive or conservative boundaries do not generally disturb the vertical displacement of the water column. Subduction zone related earthquakes generate the majority of all tsunamis. Tsunamis have a small wave height offshore, and a very foresightful wavelength (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a slight swell usually about 300 mm above the expression sea surface. and they travel quickly at speeds over 700 km/h. They grow in height when they reach shallower water.