| 甘肃黄土地区地震动持续时间预测研究 |
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| 引用本文： | 石玉成,卢育霞. 甘肃黄土地区地震动持续时间预测研究[J]. 甘肃科学学报, 2005, 17(3): 35-39 |
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| 作者姓名： | 石玉成 卢育霞 |
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| 作者单位： | 中国地震局,地震预测研究所兰州科技创新基地,甘肃,兰州,730000;中国地震局,兰州地震研究所,甘肃,兰州,730000 |
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| 基金项目： | 甘肃省自然科学基金资助项目（ZS991-A25-012-Z） |
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| 摘 要： | 在阐述地震动持时的含义及特征的基础上，分析研究了黄土地区与非黄土地区地震动衰减的差异，建立了甘肃省黄土地区地震动衰减规律，提出一种解决与给定超越概率水平相匹配的地震动持时的概率预测方法，给出了甘肃省黄土主要分布地区50年超越概率10％的地震动持时区划结果。
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| 关 键 词： | 甘肃黄土地区 地震动持时 预测方法 地震危险性分析 |
| 文章编号： | 1004-0366（2005）03-0035-05 |
| 收稿时间： | 2004-10-15 |
| 修稿时间： | 2004-10-15 |
Prediction of Seismic Duration in Loess Land of Gansu Province |
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| SHI Yu-cheng,LU Yu-xia. Prediction of Seismic Duration in Loess Land of Gansu Province[J]. Journal of Gansu Sciences, 2005, 17(3): 35-39 |
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| Authors: | SHI Yu-cheng LU Yu-xia |
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| Abstract: | On the basis of illustrating the characteristics of the seismic duration, the differences in the attenuation of ground motion between loess areas and non-loess areas are analyzed and the regularity of the ground motion attenuation in Gansu province is also established. A probabilistic method of predicting ground motion duration corresponding to the setting level of exceedance probability is proposed, adn a probabilistic duration map compiled by the proposed method in main loess areas in Gansu province is provided with 10 percent of exceedance probability during a period of 50 years. |
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| Keywords: | loess land in Gansu province seismic duration prediction method seismic risk assessment |
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