A procedure to resolve areas of different source mechanism when using the method of composite nodal plane solution
A procedure to resolve areas of different source mechanism when using the method of composite nodal plane solution
复制标题
使用复合节点平面求解方法求解不同源机制区域的过程
DOI：
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发表时间：
1980
影响因子：
3
通讯作者：
J. Mendiguren
中科院分区：
文献类型：
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作者：
J. Mendiguren
摘要复合节面解法适用于不同地区震源机制不同的地区时，会失效。这里提出了一个系统的程序，以划定这些领域并找到其特定的来源机制。在其第一步中，该方法包括对在每个台站记录的所有事件的P个第一运动数据的区域分布进行图形分析。从这一分析中，有可能确定这些事件具有相同震源机制的小区域。在第二步中，将这些基本区域扩展到具有兼容P数据的相邻区域，直到它们覆盖整个研究中的地震区。该方法解决了每个区域的震源机制，并允许识别异常区域。
abstract The composite nodal plane solution method fails when it is applied to a region where the events have different source mechanism in different areas. Presented here is a systematic procedure to delimit those areas and find their particular source mechanism. In its first step, the method consists of a graphical analysis of the regional distribution of P first motion data of all events as recorded at each station. From that analysis, it is possible to identify small areas where the events have the same source mechanism. In a second step, those elemental areas are expanded into adjacent areas with compatible P data until they cover the whole seismic region under study. The method resolves the source mechanism in each area and allows the identification of anomalous ones.