Co-seismic deformation derived from GPS observations during April 20th,2013 Lushan Earthquake,Sichua

来源 :Earthquake Science | 被引量 : 0次 | 上传用户:joinjoy
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We process the standard 30 s,static GPS data and the 1 s,high-rate GPS(HRGPS)data provided by the Crustal Movement Observation Network of China with GAMIT/GLOBK software package,and obtain the coseismic displacements of near field and far field,and the epoch-by-epoch time series of HRGPS during Lushan earthquake.GPS data from about 20 sites in Sichuan province,which located between 40 and 450 km from the epicenter,are analyzed so as to study the characteristics of the static displacements and the dynamic crustal deformations,with periods ranging from several minutes to over a month.The result shows that:the static displacements caused by Lushan earthquake are limited to several centimeters;the nearest station SCTQ at 43 km from the epicenter has the largest static displacement of about 2 cm,while the other stations generally have insignificant displacements of less than 5 mm.the stations in the east ofSichuan–Yunnan region shifts 5–10 mm toward the southwest,and the stations in the middle-west of Sichuan Basin moves indistinctively 1–2 mm toward the northwest;station SCTQ has the largest kinematic displacement of about 4 and 3 cm peak-to-peak on the north and east component,respectively,and is much greater than the static permanent displacement;for the stations located at a distance greater than 150 km from the epicenter,the kinematic motions are generally insignificant;exceptionally,station SCNC and station SCSN in central Sichuan Basin have significant kinematic motions although they are more than 200 km away from the epicenter. We process the standard 30 s, static GPS data and the 1 s, high-rate GPS (HRGPS) data provided by the Crustal Movement Observation Network of China with GAMIT / GLOBK software package, and obtain the coseismic displacements of near field and far field , and the epoch-by-epoch time series of HRGPS during Lushan earthquake. GPS data from about 20 sites in Sichuan province, which located between 40 and 450 km from the epicenter, are analyzed so as to study the characteristics of the static displacements and the dynamic crustal deformations, with periods ranging from several minutes to over a month. The result shows that: the static displacements caused by Lushan earthquake are limited to several centimeters; the nearest station SCTQ at 43 km from the epicenter has the largest static displacement of about 2 cm, while the other stations generally have insignificant displacements of less than 5 mm. the stations in the east of Sichuan-Yunnan region shifts 5-10 mm toward the southwest, and the stations in the middle-west of Sichuan Basin moves indistinctively 1-2 mm toward the northwest; station SCTQ has the largest kinematic displacement of about 4 and 3 cm peak-to-peak on the north and east component, respectively, and is much greater than the static permanent displacement; for the stations located at a distance greater than 150 km from the epicenter, the kinematic motions are generally insignificant; exceptionally, station SCNC and station SCSN in central Sichuan Basin have significant kinematic motations although they are more than 200 km away from the epicenter.
其他文献
“内容为王”对于处于上游的广播电视公司仍然适用,因为人们永远只关心内容的质量,而不会关心内容是通过哪个渠道或网络所传输。与此同时,人们订阅及消费电视节目的方式也将
目的:探讨肾嗜酸细胞腺癌的CT表现特征,提高诊断水平。方法:回顾性分析9例经手术病理证实的肾嗜酸细胞腺瘤的CT表现。结果:CT表现为密度均匀的肿块,包膜完整,增强后可见强化,
赵留彦在《财贸经济》2008年第3期撰文指出,使用结构向量自回归技术识别和估计外部冲击、国内供给冲击、国内吸收冲击和货币冲击对国内宏观经济波动的影响结果显示、数据结果
看过血腥暴力的电影《天生杀人狂》后,笔者旨在编辑技巧,拍摄技巧,和一个主题即在电影中媒体的负面影响进行深入探讨。一个如此血腥的电影,笔者还就在怎样的情况下播放血腥和
随着改革开放以来,我国的对外开放水平明显增强,与全球国家都有着密切的联系。在这过程当中显而易见英语使用的更加普遍,也间接影响着我国英语的教学水平和教学质量。在英语
媒体环境与媒体素养rn随着信息时代的到来,大众传媒已经成为信息社会中一个十分关键的社会公共部门.媒体对社会的覆盖面越来越广,对大众的影响也越来越大.从报纸杂志、广播电
写作应是快乐的,为让学生快乐写作,有话可说,要重生活积累和阅读积累。 Writing should be happy, for students to write happy, have something to say, to re-accumulati
期刊
7月14日获悉,凌华推出了支持奔腾4处理器、奔腾4-M处理器及双千兆以太网的单板计算机NuPRO-842,这也是目前执行效能最高的单板计算机之一。据凌华科技全球行销总监周韦廷称,
我们从1974年开始进行油茶嫩枝短穗扦插育苗的研究,并于1975年开始进行扦插苗造林的效果试验。从我们试验的结果和通过岑溪县油茶种子和古谈大队生产应用,证明应用油茶短穗
7月下旬,曙光公司和AMD公司宣布进行战略合作,共同建设预期峰值运算速度达10万亿次的超级计算机曙光4000A。作为国内服务器领域高性能计算方面的领头羊,曙光公司与Intel、IB