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首页> 外文期刊>Seismological research letters >Fault-to-Fault Jumping Rupture of the 2018 M-w 6.4 Hualien Earthquake in Eastern Taiwan
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Fault-to-Fault Jumping Rupture of the 2018 M-w 6.4 Hualien Earthquake in Eastern Taiwan

机译：2018 M-W 6.4华丽地震的故障到故障跳跃破裂

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摘要

A fault-to-fault jumping rupture was found during the 2018 M-w 6.4 Hualien earthquake that occurred in eastern Taiwan. Joint source inversion results indicated that the initial rupture started from a north-south (N-S)-striking fault dipping to the west and propagated to the south with a high rupture speed. The rupture then jumped to the shallower east-dipping Milun fault. Slip on the Milun fault was slow and continued for more than 10 s, which produced the largest asperity near the city of Hualien. The rupture jumped again to the Lingding fault in the northernmost Longitudinal Valley (LV). This fault-to-fault rupture process implied that slip on the Milun and Lingding faults was triggered by the N-S-striking west-dipping fault plane where the initial rupture originated. In other words, the movement on the Milun fault was passive; it was just part of a secondary branch of the major structural system in the northernmost LV. Based on this inverted source model, the static Coulomb failure stress increased along the LV, which is a crucial issue for potential seismic hazards in eastern Taiwan in the near future.
机译：在台湾东部发生的2018 M-W 6.4 Hualien地震期间发现了故障到故障跳跃破裂。联合源反转结果表明，初始破裂从北方（N-S）-Striking故障浸泡在西方，并以高速度传播到南方。然后破裂跳到了浅的东方米伦故障。 Slip对Milun故障缓慢并持续超过10秒，这在花莲市附近产生了最大的粗糙。破裂再次跳到最北端的纵向山谷（LV）中的静曲断层。这种故障到故障的破裂过程暗示了Milun和Lingding故障的滑动被初始破裂起源的N-S引人注目的西倾翻断层平面触发。换句话说，玛伦断层上的运动是被动的;它只是最北部LV的主要结构系统的二级分支的一部分。基于该倒源模型，静态库仑衰竭应力沿着LV增加，这是在不久的将来潜在的东部地震危害的关键问题。

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  • 来源
    《Seismological research letters》 |2019年第1期|共10页
  • 作者

    Lee Shiann-Jong; Lin Tzu-Chi; Liu Ting-Yu; Wong Tong-Pong;

  • 作者单位

    Acad Sinica Inst Earth Sci 128 Sect 2 Academia Rd Taipei 11529 Taiwan;

    Acad Sinica Inst Earth Sci 128 Sect 2 Academia Rd Taipei 11529 Taiwan;

    Natl Taiwan Univ Dept Geosci 1 Sect 4 Roosevelt Rd Taipei 10617 Taiwan;

    Natl Taiwan Univ Dept Geosci 1 Sect 4 Roosevelt Rd Taipei 10617 Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地震学;
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