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Synthetic seismograms of ground motion near earthquake fault using simulated Green's function method
  • ISSN号:1000-3657
  • 期刊名称:《中国地质》
  • 时间:0
  • 分类:P315.31[天文地球—地震学;天文地球—固体地球物理学;天文地球—地球物理学]
  • 作者机构:[1]Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China, [2]Konica Minolta, Tokyo 192-8505, Japan, [3]Kawasaki Geological Engineering Co., Ltd., Tokyo, 2-11-15 Mita Minato-ku, Tokyo 108-8337, Japan
  • 相关基金:Acknowledgements This work was supported by National Basic Research Program of China (Grant No. 2003CB716505) and the National Natural Science Foundation of China (Grant No. 40399141).
中文摘要:

震动图近的来源差错用混合 empiricalGreen 分离地模仿的地震波形被用于 Green'sfunctions 而不是小地震的观察波形的功能方法被综合。格林的功能为小地震的地震波形被与蹒跚的格子用 pseudo-spectralmethod 解决波浪方程计算在在 Koberegion 的详细 2-D 速度结构下面的真实快速傅里叶变换策略。大小和模仿的格林的功能波形的地震时刻被使用在差错长度和来源光谱的角落频率之间的关系第一决定。塞西穆拉泰德·格林的功能波形被采用综合充分的理由运动的震动图接近地震差错。目标地震的合成震动图与多重来源破裂过程基于模型被执行。结果建议综合震动图与 1995 Hyogo 视野 Nanbu 地震的观察地震波形与一致很好。没有观察地震波形,模仿的格林的功能方法为在区域的充分的理由运动的预言是很有用的。实验格林的函数方法的现在的技术传播应用程序域。

英文摘要:

Seismograms near source fault were synthesized using the hybrid empirical Green's function method where the discretely simulated seismic waveforms are used for Green's functions instead of the observed waveforms of small earthquakes. The Green's function seismic waveforms for small earthquake were calculated by solving wave equation using the pseudo-spectral method with the staggered grid real FFT strategy under a detailed 2-D velocity structure in Kobe region. Magnitude and seismic moment of simulated Green's function waveforms were firstly determined by using the relationship between fault length and corner frequency of source spectrum. The simulated Green's function waveforms were employed to synthesize seismograms of strong ground motion near the earthquake fault. The synthetic seismograms of the target earthquake were performed based on the model with multiple source rupture processes. The results suggest that synthesized seismograms coincide well with observed seismic waveforms of the 1995 Hyogo-ken Nanbu earthquake. The simulated Green's function method is very useful for prediction of the strong ground motion in region without observed seismic waveforms. The present technique spreads application field of the empirical Green's function method.

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期刊信息
  • 《中国地质》
  • 北大核心期刊(2011版)
  • 主管单位:国土资源部
  • 主办单位:中国地质调查局
  • 主编:李廷栋
  • 地址:北京市西城区阜外大街45号中国地质调查局发展研究中心
  • 邮编:100037
  • 邮箱:zhgdzh@vip.sina.com
  • 电话:010-58584208
  • 国际标准刊号:ISSN:1000-3657
  • 国内统一刊号:ISSN:11-1167/P
  • 邮发代号:2-112
  • 获奖情况:
  • 2012中国最具有国际影响力学术期刊,2013全国百强科技期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰地学数据库,荷兰文摘与引文数据库,美国地质文献预评数据库,美国剑桥科学文摘,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:16884