山西带近期水平运动状态
- 中国地震局第一监测中心, 天津 300180
基金项目:
中国地震局监测预报司震情跟踪课题(2012020214)
作者简介:
杨博(1985-),男(汉族),大学本科,从事GNSS数据处理与分析.E-mail:357185027@qq.com
- 收稿日期:
2012-04-26
- 刊出日期:
2012-12-15
摘要: 以山西带10期GNSS复测资料(2002-2011)为基本依托,借助GAMIT/GLOBK/QOCA软件计算了山西带2002-2010年的平均水平运动速率及2011年3月11日日本9.0级特大地震之后至8月的总体偏离位移,同时利用多核函数对该震的同震位移进行了数值解析。结果表明:①2002-2010年水平运动速率普遍小于1.0mm/a,有一定的随机性,一致性和规律性较差;②日本地震的同震位移方向近于正东向,其中最大值达到6.3mm,位于山西带北端,最小值为3.4mm,位于山西带南端;③震后偏离位移在山西南部表现为以北向为主的运动,平均位移约4.0~5.0mm;中部为北东向运动,平均位移约1.0~3.0mm;北部则向北北东、北东向运动,平均位移是3.0~4.0mm。
THE PRESENT STATE OF CRUSTAL HORIZONTAL MOVEMENT IN SHANXI FAULT ZONE
- The First Crustal Deformation Monitoring Center of CEA, Tianjin 300180, China
- Received Date:
2012-04-26
- Publish Date:
2012-12-15
Abstract: Based on the analysis of ten years'GNSS data(2002-2011)in Shanxi area, the average motion velocity of the area from the year 2002 to 2010 and the general displacement caused by the March 11, 2011 Mw9.0 Tohoku-oki earthquake, are obtained through GAMIT/GLOBK/QOCA.The coseismic displacement is resolved using multi-kernel function.The results show that:(1)2002-2004 horizontal motion velocity is generally less than 1.0 mm/a, randomicity and poor in consistency and regularity;(2)The coseismic displacement of Tohoku-oki earthquake points generally to the east;and the maximum value reaches 6.3 mm, located in Northern Shanxi;the minimum value is 3.4 mm, located in Southern Shanxi;(3) After Tohoku-oki earthquake, the non-coseismic displacement points generally to north in Southern Shanxi, averaged 4~5 mm;to NE in Middle Shanxi, averaged 1~3 mm;to NNE or NE in Northern Shanxi, averaged 3~4 mm.
杨博, 刘志广, 占伟, 冯胜涛, 杜凯夫. 山西带近期水平运动状态[J]. 华北地震科学, 2012, 30(4): 14-18.
| 引用本文: |
杨博, 刘志广, 占伟, 冯胜涛, 杜凯夫. 山西带近期水平运动状态[J]. 华北地震科学, 2012, 30(4): 14-18.
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YANG Bo, LIU Zhi-guang, ZHAN Wei, FENG Sheng-tao, DU Kai-fu. THE PRESENT STATE OF CRUSTAL HORIZONTAL MOVEMENT IN SHANXI FAULT ZONE[J]. North China Earthquake Sciences, 2012, 30(4): 14-18.
| Citation: |
YANG Bo, LIU Zhi-guang, ZHAN Wei, FENG Sheng-tao, DU Kai-fu. THE PRESENT STATE OF CRUSTAL HORIZONTAL MOVEMENT IN SHANXI FAULT ZONE[J]. North China Earthquake Sciences, 2012, 30(4): 14-18.
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