| Horizontal crustal movement in Chinese mainland from 1999 to 2001 |
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| 作者姓名： | 顾国华 符养 王武星 |
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| 作者单位： | Institute of Earthquake Science，China Earthquake Administration，Beijing 100036，China，Xi′an Institute of Surveying and Mapping，Xi′an 710054，China，Institute of Earthquake Science，China Earthquake Administration，Beijing 100036，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | Introduction In the Crustal Movement Observation Network of China (CMONOC) there are 25 fiducialstations, 56 basic stations and 1 000 regional stations. They are scattered on 10 major blocks inChinese mainland with high density of observation stations on the blocks of high seismic activityin the regional networks. 10 major blocks or regions (they will be referred to as blocks in the paper,a letter is used as a symbol for each block) were divided during the design of the regionalnetwo…
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Horizontal crustal movement in Chinese mainland from 1999 to 2001 |
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| Abstract: | The paper introduces the horizontal crustal movement obtained from GPS observations in the regional networks(including the basic network and the fiducial network) of the Crustal Movement Observation Network of China(CMONOC) carried out in 1999 and 2001. This paper is characterized by the acquisition of the horizontal dis-placement velocities during the period from 1999 to 2001 at the observation stations in the regional networks withdatum definition of a group of stable stations with small mutual displacements in east China. Based on the mostdetailed map of horizontal crustal movement in Chinese mainland, the division of blocks, their displacements anddeformations are studied. An approach to analysis of the intensity of the horizontal crustal deformation is proposed.The general characteristics of the recent horizontal crustal movement in Chinese mainland and that before theKunlunshan earthquake of M=8.1 on November 14, 2001 are analyzed. |
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| Keywords: | crustal movement GPS displacement block regional network |
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