Source characteristics of shallow intraslab earthquakes derived from strong-motion simulations

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• 作者：Kimiyuki Asano ; Tomotaka Iwata ; Kojiro Irikura
• 关键词：Shallow intraslab earthquake ; strong ; motion generation ; empirical Green’s function method ; stress drop
• 刊名：Earth, Planets and Space
• 出版年：2003
• 出版时间：April 2003
• 年：2003
• 卷：55
• 期：4
• 页码：e5-e8
• 全文大小：409KB
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• 作者单位：Kimiyuki Asano (1)
  Tomotaka Iwata (1)
  Kojiro Irikura (1)
  
  1. Disaster Prevention Research Institute, Kyoto University, Kyoto, 611-0011, Japan
  
• 刊物类别：Earth Sciences, general; Geology; Geophysics/Geodesy;
• 刊物主题：Earth Sciences, general; Geology; Geophysics/Geodesy;
• 出版者：Springer Berlin Heidelberg
• ISSN：1880-5981

文摘

Source modeling of recent shallow intraslab earthquakes is studied using strong-motion data. The total area of strong-motion generation areas obtained is smaller than the prediction from the empirical relationship for inland crustal earthquakes by Somerville and co-workers. Moreover, the ratio between the combined area of strong-motion generation areas obtained in this study and the area predicted by the empirical relationship, tends to decrease with focal depth. The stress drops on strong motion generation areas (or asperities) of shallow intraslab earthquakes increase with focal depth. Key words Shallow intraslab earthquake strong-motion generation empirical Green’s function method stress drop