有关青海玉树地震的英语文章中英双语的
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有关青海玉树地震的英语文章中英双语的
有关青海玉树地震的英语文章
中英双语的
有关青海玉树地震的英语文章中英双语的
Qinghai lies in the northeastern part of the Tibetan Plateau,which formed due to the ongoing collision of the Indian Plate with the Eurasian Plate.The main deformation in this area is crustal shortening,but there is also a component of left lateral strike-slip faulting on major west–east trending structures such as the Kunlun and Altyn Tagh fault systems that accommodate southeastward translation of the Tibetan area.
The earthquake occurred on the Yunshu fault,about 300 kilometres (186 mi) south of the Kunlun fault.[4] The Yunshu fault forms part of the Yushu-Garzê-Xianshuihe fault zone (玉树-甘孜-鲜水河断裂带),one of the most active fault zones in eastern Tibet.In history,many earthquakes with magnitude greater than 7 have occurred in the Xianshuihe fault zone,[14] for example,the magnitude 7.25 earthquake in the Luhuo area on March 24,1923,and the Ms 7.6 earthquake on Febuary 6,1973 in Luhuo.Almost all sections of the Xianshuihe fault zone have produced strong earthquakes in records,except the sections of Yushu and Shimian (石棉).However,a trace of a strong earthquake occurred about 16 000 or 17 000 years ago has been found in Shimian.Hence,the Shimian section of the Xianshuihe fault zone is speculated to be currently locked and have the possibility of producing strong earthquake in the future.