|本期目录/Table of Contents|

[1]廖 力,李平恩,刘 盼,等.鲁甸地震发震断层自发破裂模拟*[J].地震研究,2019,42(01):24-32.
　LIAO Li,LI Ping'en,LIU Pan,et al.Simulation of Spontaneous Rupture of the Seismogenic fault of Ludian Earthquake[J].Journal of Seismological Research,2019,42(01):24-32.
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鲁甸地震发震断层自发破裂模拟*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
42
期数:
2019年01期
页码:
24-32
栏目:
出版日期:
2019-04-20

文章信息/Info

Title:
Simulation of Spontaneous Rupture of the Seismogenic fault of Ludian Earthquake
作者:
廖 力1; 李平恩1; 刘 盼2; 杨建思1
(1.中国地震局地球物理研究所,北京 100081; 2.陕西省地震局,陕西 西安 710068)
Author(s):
LIAO Li1; LI Ping'en1; LIU Pan2; YANG Jiansi1
(1. Institute of geophysics,China Earthquake Administration,Beijing 100081,China)(2. Shannxi Earthquake Agency,Xi'an 710068,Shannxi,China)
关键词:
鲁甸地震;  自发破裂;  曲线有限差分方法;  包谷垴—小河断裂
Keywords:
Ludian earthquake;  spontaneous rupture;  curve finite difference method;  Baogu'nao-Xiaohe fault
分类号:
P315.332
DOI:
-
摘要:
从弹性动力学方程出发模拟了鲁甸地震在包谷垴—小河断裂地震自发破裂过程,探讨影响鲁甸地震破裂的因素。研究结果表明:鲁甸地震的左旋走滑的震源机制以及震级主要是受背景应力场的影响,断层滑移分布受到断层几何结构、水平应力场方向及相对大小的影响,非平面复杂断层几何结构是导致鲁甸地震复杂的滑动位移分布的原因。
Abstract:
In this study,we simulate the process of spontaneous rupture of the Ludian earthquake at Baogunao-Xiaohe fault,and discuss the influencing factors of the Ludian earthquake rupture. The results show that the focal mechanism of the left-lateral strike-slip and the magnitude of the Ludian earthquake are mainly affected by the background stress field. The distribution of fault slip is affected by the change of fault geometry,direction and relative size of horizontal stress field. Non-planar complex fault geometry structure causes the complex sliding displacement distribution of the Ludian earthquake.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-11-14
基金项目:国家重点研发计划课题——300m级特高坝抗震安全评价与控制关键技术(2017YFC0404901)及中国地震局地球物理研究所基本科研业务费——鲁甸地震震源自发破裂过程研究(DQJB16B11)联合资助.

更新日期/Last Update: 2019-04-25