China, Sichuan Earthquake 2008 Essay

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China, Sichuan earthquake 2008 Location: On the afternoon of May 12, 2008, a 7.9-magnitude earthquake hit Sichuan Province, which is 92 km to the north-west of Chengdu City, a mountainous region in Western China, killing about 80,000 people and leaving over 18,000 missing. Over 15 million people lived in the affected area, including almost 4 million in the city of Chengdu. http://sergiu.turcanu.net/strong-earthquake-hits-china/map-of-the-sichuan-earthquake/ Causes: The earthquake was caused by the collision between two tectonic plates, the Indian plate and the Eurasian plate.This collision, is the cause of the high mountains and widespread seismicity observed throughout central Asia. The area of dense circles between India and Asia covers a wide region that is undergoing large strain and deformation. It is this strain that led to the Sichuan quake. The 2008 Sichuan earthquake occurred where the eastern part of Tibet, forced further eastward, overrides the Sichuan basin at a rate of about 4 mm/year. The rupture of the fault started in the mountains northwest of the city of Chengdu and then, over the next 50 seconds, traveled at least 200 km toward the northeast, tearing apart the land along the front of the mountain range. That at the epicenter, the depth of the rupture was only about 10 km below the surface. The amount of shaking correlates with rupture depth. The closer the rupture is to the surface, the stronger the shaking. Motion along the southern edge of the fault was predominantly dip slip, leading to an increment of uplift of the mountain range and subsidence of the Sichuan basin. Facts: Thirty times more powerful than the earthquake that devastated Kobe, Japan in 1995, the Sichuan earthquake lasted for about 80 seconds and caused the ground surface to shift about seven meters near the epicenter of the quake. Many Chinese refer to its as the

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