Rupture behaviors of the 2011 Tohoku earthquake and its strongest foreshock through an empirical Green's function deconvolution analysis

Yi-Ying Wen

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Rupture behaviors of the 2011 Tohoku earthquake and its strongest foreshock through an empirical Green's function deconvolution analysis

机译：通过经验格林函数反卷积分析得出2011年东北地震的破裂行为及其最强前震

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摘要

An empirical Green's function (EGF) deconvolution analysis was applied to study the source characteristics of the 2011 Mw 9.0 Tohoku and 2011 Mw 7.4 Sanriku-Oki earthquakes. For the 2011 Tohoku earthquake, we demonstrate that nucleation released weak but high-frequency energy and that the rupture propagated downward and sped toward the deep region after the up-dip slip extended to the trench. Moreover, the 2011 Sanriku-Oki earthquake results and a previous study on the 1994 Sanriku-Oki earthquake suggest that large earthquakes in the subduction zone around the Tohoku area prefer to rapidly rupture toward the deeper (down-dip) region.

机译：应用经验格林函数（EGF）反卷积分析来研究2011年东北9.0级和2011年三陆奥奇7.4级地震的震源特征。对于2011年的东北地震，我们证明了形核释放了微弱但高频的能量，并且在上倾滑移延伸到海沟之后，破裂向下传播并向深处加速。此外，2011年三陆冲绳地震的结果以及对1994年三陆冲绳地震的先前研究表明，东北地区俯冲带的大地震倾向于向较深（下倾）地区快速破裂。

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《Journal of Asian earth sciences》 |2014年第25期|123-128|共6页
作者
Yi-Ying Wen;
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作者单位

Department of Earth and Environmental Sciences, National Chung-Cheng University, Taiwan;

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原文格式 PDF
正文语种 eng
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Empirical Green's function; Deconvolution analysis; 2011 Mw 9.0 Tohoku earthquake; 2011 Mw 7.4 Sanriku-Oki earthquake;

机译：经验格林函数;去卷积分析;2011年Mw 9.0东北地震;2011年Mw 7.4三陆大木地震;

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Rupture behaviors of the 2011 Tohoku earthquake and its strongest foreshock through an empirical Green's function deconvolution analysis

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