Analysis of GPS Baseline Time Series before and after Tohoku-Oki M9. 0 Earthquake in Japan in 2011

详细信息   

• 责任者：Zhang Fengshuang (First Crust Monitoring and Application Center ; CEA ; Tianjin 300180 ; China) ; Zhan Wei
• 刊名：Journal of Seismological Research
• 出版年：2012
• 卷期：35(2)
• 关键词：大震 ; great earthquakes ; 全球定位系统 ; Global Positioning System ; 日本 ; Japan
• 页码：p.190-200
• 图表：5 illus., 1 table, 16 refs.
• 分类号：0500
• issnNo：ISSN1000-0666
• isbnNo：CN53-1062/P

摘要

///By the use of the data recorded by reference stations of the project of  “China Crust Movement Measuring Network” and IGS reference stations at the surrounding of the mainland of China including Japan from early 1999 to Sep. , 2011, the authors analyze the variations of baseline time-series recorded by IGS reference stations before the Tohoku-oki M9.0 earthquake on Mar. 11, 2011 in Japan and its surrounding. Then the authors discuss about the co-seismic influence of Tohoku-oki M9.0 earthquake to the GPS reference stations in China, and summarize the changes of GPS baseline time series in China after the earthquake in Japan. By analyzing changes of GPS baseline time-series, the authors think that some GPS baseline time-series in the east of China turn to stretch after Tohoku-oki M9.0 earthquake, which can relieve its shortening tendency in some extent. However, there also exist some GPS baseline time-series whose tendency variations are almost not influenced by Tohoku-oki M9.0 earthquake, and its trend anomaly have kept for years in recent years.