| 华中、华南中强地震区地震烈度衰减关系研究 |
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| 引用本文： | 王继,俞言祥.华中、华南中强地震区地震烈度衰减关系研究[J].震灾防御技术,2008,3(1):20-26. |
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| 作者姓名： | 王继 俞言祥 |
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| 作者单位： | 1. 中国地震灾害防御中心,北京,100029
2. 中国地震局地球物理研究所,北京,100081 |
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| 摘 要： | 本文收集了1990-2006年间，我国华中、华南中强地震地区25次地震的烈度分布图，再配合1918-1989年间，9次地震的地震烈度分布图，重新拟合了该地区地震烈度衰减关系。震级下限从5级扩展到3．5级，地震烈度主要增加了Ⅳ度-Ⅵ度之间的样本量。与以往的地震烈度衰减关系相比，在小地震时计算烈度得到了相应的提高。充分反映出我国华中、华南地区地震震级小，而烈度相对高的特点。
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| 关 键 词： | 华南 烈度 衰减关系 |
| 收稿时间： | 2007/12/22 0:00:00 |
Seismic Intensity Attenuation Law in Moderate Intense Seismic Zone of Central and Southern China |
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| Wang Ji and Yu Yanxiang.Seismic Intensity Attenuation Law in Moderate Intense Seismic Zone of Central and Southern China[J].Technology for Earthquake Disaster Prevention,2008,3(1):20-26. |
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| Authors: | Wang Ji and Yu Yanxiang |
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| Institution: | China Earthquake Disaster Prevention Center, Beijing 100029, China;Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | Based on isoseismic data from 34 earthquakes of Central and Northern China from 1918 to 2006, we propose the seismic intensity attenuation law for this region by using the regression method.The earthquake magnitude range is from Ms3.5 to MsS.7.Comparing with seismic intensity attenuation laws of other regions in China, this law can reflect the fact of relative high seismic intensities generated by relative small earthquakes in Central and Southern China. |
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| Keywords: | Southern China Seismic intensity Attenuation law |
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