Sumatra-Adaman大地震同震和震后形变的GRACE卫星检测

¹武汉大学测绘学院,武汉市珞喻路129号,430079;²中国地震局地震研究所,武汉市洪山侧路40号,430071;³地壳运动与地球观测实验室,武汉市洪山侧路40号,430071;⁴东京大学地震研究所,日本东京都内文京区本乡,113-0032

基金项目: 国家自然科学基金资助项目(40704009)；中国地震局地震研究所发展基金资助项目(IS200736026)

详细信息

Detection of Co-seismic and Post-seismic Deformation Caused by the Sumatra-Andaman Earthquake Using GRACE

¹ School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;² Institute of Sesimology,CEA,40 Hongshance Road,Wuhan 430071,China; ³ Crustal Movement Laboratory,CEA,40 Hongshance Road,Wuhan 430071,China;⁴ Earthquake Research Institute,University of Tokyo,Tokyo 113-0032,Japan

Funds: 国家自然科学基金资助项目(40704009)；中国地震局地震研究所发展基金资助项目(IS200736026)

摘要: 利用CSR公布的RL-04版GRACE卫星月重力场模型计算了9.1级Sumatra-Adaman大地震的同震和震后形变效应。数值结果表明,GRACE能够监测到的同震和震后形变量为-20～10cm的等效水高,为大地震同震和震后形变监测提供了一种独特、有效的方法。
- GRACE /
- 重力场 /
- 大地震
Abstract: The co-seismic and post-seismic deformation caused by Sumatra-Adaman earthquake are computed by using RL04 GSM monthly gravity model of GRACE published by CSR.The analysis and comparison of numerical results show that co-seismic and post-seismic deformation information about-20-10 cm equivalent water thickness from large earthquake can be detected by GRACE satellite gravity surveying.
- GRACE /
- gravity field /
- large earthquake