用远场资料反演西藏玛尼地震的高阶地震矩张量附视频

被引:7
作者
刘瑞丰
陈运泰
Frank Krueger
成瑾
杨辉
韩炜
牟磊育
机构
[1] 中国地震局地球物理研究所
[2] 德国Potsdam大学地球物理研究所
关键词
玛尼地震; 高阶地震矩张量; 震源参数; 宽频带; 数字化;
D O I
暂无
中图分类号
P315.0 [理论与方法];
学科分类号
摘要
采用扩展震源模型测定出更多的震源参数 .我们把震源用高阶地震矩张量表示 .为了减少在高阶地震矩张量表达式中出现的大量项 ,采用了 Haskell断层模型 .利用 GSN台网 32个台站的宽频带体波资料 ,反演了西藏玛尼地震的震源参数 .通过实际计算表明 ,该震源是一个走滑断层 ,破裂方向 75°,断层面为=77°、δ=88°,λ=0°,辅助面为=347°、δ=90°、λ=1 78°,破裂持续时间为 1 9s,断层尺度为 47km× 2 8km.这些结果将为地球动力学研究提供新的定量资料 ,对于震源层析成像研究等有实际意义 .
引用
收藏
页码:225 / 232
页数:8
相关论文
共 13 条
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