| 1995年日本阪神地震近场强地面运动的特征 |
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| 引用本文： | 罗奇峰,那向谦.1995年日本阪神地震近场强地面运动的特征[J].西北地震学报,1997,19(3):52-55,62. |
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| 作者姓名： | 罗奇峰 那向谦 |
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| 作者单位： | 同济大学结构理论研究所(罗奇峰)，清华大学土木系(那向谦) |
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| 摘 要： | 分析了１９９５年日本阪神地震（Ｍ７．２）近场强地面运动特征．结果表明，震中附近地区水平加速度峰值达６００～８００ｇａｌ，竖向加速度峰值达３００ｇａｌ，强地面运动持续时间为１０～１５ｓ，加速度时程的卓越周期为０．２～２ｓ．谱分析的结果还表明，在较宽的频带范围内该次地震的近场地震动的强度都比较大．
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| 关 键 词： | 日本 地面运动 谱 阪神地震 加速度峰值 |
CHARACTERISTICS OF STRONG GROUND MOTIONS IN EPICENTRAL REGION OF THE 1995 Osaka-Kobe EARTHQUAKE, JAPAN |
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| LUO Qifeng and NA Xiangqian.CHARACTERISTICS OF STRONG GROUND MOTIONS IN EPICENTRAL REGION OF THE 1995 Osaka-Kobe EARTHQUAKE, JAPAN[J].Northwestern Seismological Journal,1997,19(3):52-55,62. |
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| Authors: | LUO Qifeng and NA Xiangqian |
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| Institution: | Institute of Structural Theory, Tongji University, Shanghai 200092 and Department of Civil Engineering, Qinghua University, Beijing 100084 |
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| Abstract: | The Seis83 programs were used in order to calculate the DSS data of Daxing Yanqing section in Yanshan Daxing Yanqing profile.The structure of crust and upper mantle was obtained in Badaling and its neighborhood.The result shows that in the region,faults well developed and there is much difference in thickness of deposition layer in the shallow crust,crust structure is heterogeneous in crosswise and undulate changes of crust interface and velocity isopleth are obvious in depths,low velocity blocks exist in the partial crust.The depth of Moho discontinuity in Daxing is about 34.5 km and that in Juyongguan is about 38.5 km.A fault of Moho exists in vicinity of Yanqing. |
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| Keywords: | Crust mantle structure Potential focus Man made earthquake Badaling |
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