| 关于"一致"地震动衰减规律的探讨 |
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| 引用本文： | 万召侗,罗奇峰,曾心传,龚平.关于"一致"地震动衰减规律的探讨[J].地震研究,2005,28(4):373-377. |
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| 作者姓名： | 万召侗 罗奇峰 曾心传 龚平 |
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| 作者单位： | 同济大学土木工程学院,上海,200092;中国地震局地震研究所,武汉,430071 |
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| 基金项目： | 国家自然科学基金;湖北省科技厅科学技术发展计划 |
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| 摘 要： | 以我国中南地区烈度资料为例，用卡方正交回归烈度和震级的联合椭圆衰减模型，研究了烈度和震级相互转换的一致性问题，给出适合该地区的“一致”地震动衰减关系，并与常规方法得到的最小二乘结果进行比较，结果较为合理。该方法也可用于预测不同地区其它地震动参数衰减关系。
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| 关 键 词： | 一致性 衰减 烈度 地震动 卡方正交回归 中南地区 |
| 文章编号： | 1000-0666-(2005)04-0373-05 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005年3月7日 |
Discussion on the Consistent Attenuation Law of Earthquake Intensity |
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| WAN Zhao-tong,LUO Qi-feng,ZENG Xin-chuan,GONG Ping.Discussion on the Consistent Attenuation Law of Earthquake Intensity[J].Journal of Seismological Research,2005,28(4):373-377. |
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| Authors: | WAN Zhao-tong LUO Qi-feng ZENG Xin-chuan GONG Ping |
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| Institution: | 1. School of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Institute of Seismology, CEA, Wuhan 430071, China |
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| Abstract: | Taking the intensity data in the south of Central China as an example,we use Chi-square orthogonal regression of symmetric intensity model of joint ellipse in the south of Central China to eradicate the inconsistency in the transformation between intensity and magnitude,and obtained the consistent earthquake motion attenuation law agreeing with the area.Compared with ordinary least-square estimation,the presented Chi-square solution serves a better improvement of asymptotic magnitude-intensity transformation.This way is also suitable for the regression of other earthquake motion parameters in other regions. |
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| Keywords: | consistency attenuation law intensity earthquake motion Chi-square orthogonal regression south of Central China |
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