...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Seismological research letters >Rupture Behavior and Interaction of the 2018 Hualien Earthquake Sequence and Its Tectonic Implication
【24h】

Rupture Behavior and Interaction of the 2018 Hualien Earthquake Sequence and Its Tectonic Implication

机译：2018年华丽地震序列的破裂行为与互动及其构造含义

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The M-w 6.4 disastrous 2018 Hualien earthquake hitting the city of Hualien in eastern Taiwan on 6 February 2018 was preceded by unusual foreshock activities, starting with the largest M-w 5.9 foreshock two days earlier. To better understand the source processes and tectonic significance of this earthquake sequence, we investigated the rupture behaviors of both the largest foreshock and mainshock by the backprojection (BP) method. Results reveal that the foreshock ruptured northeastward and downward on a west-northwest-striking, north-northeast-dipping subhorizontal fault, and the mainshock propagated southwestward along a north-northeast-south-southwest-striking high-angle subvertical fault. The mainshock was not properly represented by a single point-source model, as suggested by a significant compensated linear vector dipole (CLVD) component of the moment tensor solution. A multiple point-source model clarifies the cause of a high CLVD and indicates that the mainshock was composed of one M(w )6.2 and three smaller subevents. The largest one is an east-dipping sinistral strike-slip fault distinct from the other predominant thrusting subevents. The largest subevent was triggered by receiving the increased stress of at least 10 bars induced from the foreshock and initial subevent of the mainshock through the static Coulomb stress-transfer mechanism. The 2018 Hualien earthquake sequence represents a combined consequence of oblique subduction and lateral compression ongoing concurrently beneath the northern tip of the Taiwan-Luzon arc collision zone.
机译：2018年2月6日，M-W 6.4 2018年灾难性地震击中了台湾东部东部的华丽市，以不寻常的讲解活动，以两天前的最大的M-W 5.9预测开始。为了更好地了解这种地震序列的源过程和构造意义，我们通过反调（BP）方法调查了最大的留声和主轴的破裂行为。结果表明，近东东北尖锐的脱色断层的前向下和向下破裂，沿着北东北 - 南南 - 西南尖锐的高角度复杂断层沿着西北地区传播西北繁殖。主轴未被单点源模型适当地表示，如矩溶液的显着补偿线性矢量偶极（CLVD）分量所示。多个点源模型阐明了高CLVD的原因，并表示主震源由一个M（w）6.2和三个较小的子宫组成。最大的是一个东浸的Sinistral防滑故障，不同于其他主要的推力子子宫。通过通过静态库仑应力转移机制接收由主轴的初学者和主轴的初始子宫诱导的至少10巴的增加来触发最大子子。 2018年花莲地震序列代表了台湾 - 吕宋岛峡谷碰撞区北端北端倾斜俯冲和横向压缩的综合后果。

著录项

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

    Jian Pei-Ru; Hung Shu-Huei; Meng Lingsen;

  • 作者单位

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

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

    Univ Calif Los Angeles Dept Earth Planetary &

    Space Sci Los Angeles CA 90095 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地震学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号