| 汶川Ms8.0地震灾害的非对称分布与成因分析 |
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| 引用本文： | 周庆,张春山,陈献程.汶川Ms8.0地震灾害的非对称分布与成因分析[J].地震学报,2011,33(4):492-504. |
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| 作者姓名： | 周庆 张春山 陈献程 |
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| 作者单位： | 中国北京100029中国地震局地质研究所
2) 中国北京100081中国地质科学院地质力学研究所 |
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| 基金项目： | 国家科技支撑计划项目(2008BAK47B03)资助 |
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| 摘 要： | 在汶川Ms8.0地震中,地震灾害在灾区相对于发震断层,呈现各种非对称分布.断层高角度逆冲诱发的崩塌、滑坡的规模与数量在断层上盘区远远高于断层下盘区,在垂直断层方向,高烈度区断层上盘宽度往往大于下盘宽度,上述不对称性反映了逆断层型地震存在加速度峰值的上盘效应;而在破裂的传播方向存在的地震波多普勒效应则造成沿长轴方向东北部...
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| 关 键 词： | 汶川Ms8.0地震 地震灾害 地震断层 断层上盘效应 多普勒效应 场地效应 |
Asymmetric disaster distribution and its cause analysis of the M_S8.0 Whenchuan earthquake |
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| Zhou Qing,Zhang Chunshan,Chen Xiancheng.Asymmetric disaster distribution and its cause analysis of the M_S8.0 Whenchuan earthquake[J].Acta Seismologica Sinica,2011,33(4):492-504. |
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| Authors: | Zhou Qing Zhang Chunshan Chen Xiancheng |
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| Institution: | 1) Institute of Geology, China Earthquake Administration, Beijing 100029,China2) Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China |
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| Abstract: | Seismic disasters displayed various asymmetrical distribution during the 2008 MS8.0 Whenchuan earthquake.The size and quantity of landslides and rock avalanches triggered by high-angle reverse faulting on the hanging wall are higher than on the footwall.In the direction perpendicular to fault strike,the zones with high intensity on the hanging wall are wider than on the footwall.These asymmetries reflect hanging wall effect on peak ground acceleration in reverse faulting event.In the direction of rupture pr... |
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| Keywords: | MS8 0 Whenchuan earthquake seismic disaster seismogenic fault hanging wall effect Doppler effect site effect |
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