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首页> 外文期刊>Earth, planets and space: EPS >Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data
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Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data

机译：GPS资料推论，与2005年宫城-冲木地震（M7.2）有关的同震和震后滑动

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摘要

A large earthquake with M7.2 occurred on August 16, 2005 along the plate boundary off Miyagi Prefecture. Co- and post-seismic deformations associated with this event were investigated to reveal the causal interplate slips using continuous GPS data and geodetic inversion. The coseismic slip distribution shows good agreement with that estimated by seismic waveform inversions. The major slip area is limited to the southeastern part of the rupture area of the previous 1978 event. The post-seismic slip extended to the southwest of the co-seismic slip area. These distinctive features of both the co- and post-seismic slips might be caused by the existence of the locked plate interface, where seismogenic stress has not released yet, in the northern part of the 1978 rupture area.
机译：2005年8月16日，在宫城县附近的板块边界发生了M7.2级大地震。使用连续GPS数据和大地测量反演，研究了与该事件相关的同震和震后变形，以揭示因果关系的板间滑动。同震滑动分布与地震波形反演估计的吻合良好。主要的滑移区域仅限于上一次1978年事件破裂区域的东南部。后地震滑动延伸到同地震滑动区域的西南。共震和后震滑动的这些独特特征可能是由于1978年破裂带北部的锁定板界面的存在引起的，在该界面上还没有释放成地震应力。

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