Aftershocks due to property variations in the fault zone: A mechanical model
Aftershocks due to property variations in the fault zone: A mechanical model
复制标题
断层带性质变化引起的余震:力学模型
DOI:
10.1016/j.tecto.2012.12.013
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发表时间:
2013-03
期刊:
影响因子:
2.9
通讯作者:
Caibo Hu, Yongen Cai, Mian Liu, Zhenming Wang
中科院分区:
文献类型:
--
作者:
Caibo Hu, Yongen Cai, Mian Liu, Zhenming Wang
Studies of many large strike-slip earthquakes have shown that the seismicity rate increases in quadrants in which the Coulomb stress is increased by the earthquake rupture. This mechanism explains the concentration of aftershocks near the tips of the fault rupture, but cannot explain the aftershocks on the sides of the rupture zone, where the aftershocks are commonly abundant. We suggest that these aftershocks may be induced by variations of fault-zone properties not included in the previous models. In a finite-element model that treats the rupture plane as a zone with heterogeneous physical properties, as suggested by field observations and laboratory experiments, the Coulomb-stress changes triggered by the mainshock no longer uniformly decrease on the sides of the rupture zone, but show complex patterns of negative and positive changes. These results may explain some of the aftershocks on the sides of the mainshock rupture.
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影响因子:
3
作者:
R. Butler;G. S. Stewart;H. Kanamori
通讯作者:
R. Butler;G. S. Stewart;H. Kanamori
DOI:
10.1029/gm113p0101
发表时间:
2013-03
期刊:
Geophysical monograph
影响因子:
--
作者:
J. Caine;C. Forster
通讯作者:
J. Caine;C. Forster
影响因子:
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作者:
胡才博
通讯作者:
胡才博
影响因子:
1.4
作者:
A. Geyer;Agust Gudmundsson
通讯作者:
A. Geyer;Agust Gudmundsson
影响因子:
3.9
作者:
DIETERICH, J
通讯作者:
DIETERICH, J