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The relationship between the T phase and the fault parameters of eastern Indian Ocean earthquakes
Author(s): 
Pages: 342-346
Year: Issue:  4
Journal: JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Keyword:  T波苏门答腊地震声纳层断层参数转换效率;
Abstract: 从2004-12-26苏门答腊(Mw=9.3)大地震发生后,在该区域诱发的137个地震的波形记录中提取出了清晰的T波,并分析研究了T波波形特征与地震震源参数的相关性.通过分析计算得到如下结论:(Ⅰ)对于同一震级的地震,走滑型地震在海水声纳层中激发的T波能量大于正逆断层型地震;(Ⅱ)随着深度的增加,激发的T波与P波能量的比值(T/P)在逐渐减小;(Ⅲ)T与P,S波峰值到时差与地震震中距呈现较好的线性关系;(Ⅳ)在纬度1.0至2.5的区域,存在一个地震波向声波转换效率高的区域.
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