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首页> 外文期刊>Earth, planets and space: EPS >Crustal deformations in Kii peninsula associated with the SE off the Kii peninsula earthquake sequence of September 5, 2004 derived from dense GPS observations
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Crustal deformations in Kii peninsula associated with the SE off the Kii peninsula earthquake sequence of September 5, 2004 derived from dense GPS observations

机译：来自2004年9月5日基伊半岛地震序列东南部SE的基伊半岛地壳变形来自密集的GPS观测

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We present crustal deformations in southern Kii peninsula, southwest Japan, before and after the SE off the Kii peninsula earthquake sequence of September 5, 2004, which were obtained from repeated surveys of dense GPS network. Disaster Prevention Research Institute (hereafter DPRI), Kyoto University made a reoccupation of their dense GPS network network that was occupied in February-March, 2004, right after the event to obtain crustal deformations associated with this event. Since we do not have the data just before the event, we apply an inversion of displacements of GEONET sites during the period from February-March to August, and interpolate displacements at DPRI's sites using the inverted fault model. Southward movements of about 2 cm are obtained in the middle of Kii peninsula, while displacements are rotated to southwest on the west side. These characteristics of horizontal displacement field cannot be explained only by a pure thrust faulting, but additional sources such as right-lateral faulting on a NW-SE trending fault
机译：我们介绍了日本西南部的纪伊半岛南部，2004年9月5日的纪伊半岛地震序列发生东南SE前后的地壳变形，这些变形是通过对GPS密集网络的反复调查获得的。京都大学防灾研究所（以下简称DPRI）重新考虑了2004年2月至3月占领的密集GPS网络网络，以获取与此事件相关的地壳形变。由于我们没有活动前的数据，因此我们对2月至3月至8月的GEONET站点位移进行了反演，并使用倒置断层模型对DPRI站点的位移进行了插值。在基伊半岛中部获得了大约2 cm的向南运动，而位移则在西侧向西南旋转。水平位移场的这些特征不能仅通过纯推力断层来解释，而可以用诸如北西北向趋势断层上的右侧断层之类的其他来源来解释。

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