拐角频率在营海岫地区地震序列判定中的应用  

Application on the corner frequency to judge the earthquake sequences occurred in Xiuyan,Haicheng and Yingkou Regions

作　　者：贾丽华[1] 杨红艳[1] 黄亮[1] 朱晓秋 陈继伟[1] 安祥宇[1] 杨振鹏[1] 

机构地区：[1]辽宁省地震局,中国沈阳110034 [2]营口地震台,中国辽宁115000

出　　处：《地震地磁观测与研究》2012年第5期70-74,共5页Seismological and Geomagnetic Observation and Research

基　　金：辽宁省地震局重点实验室项目(LZD1105)

摘　　要：利用拐角频率方法,研究营、海、岫地区1999年以来发生的显著震群性质,结果表明,前震序列与其他震群拐角频率曲线变化形态不同,拐角频率的大小能较好反映震源区应力场的大小。In this paper, through calculating the corner frequency, the earthquake sequences occurred in Yingkou,Haicheng and Xiuyan since 1999 are studied. The result indicates that the change of the corner frequency curves of foreshock sequence is different from those of other earthquake swarms. The size of the corner frequency can perfectly reflect the size of the stress field in the hypocenter region. The relation between the corner frequency and magnitude is discussed in the paper.

关 键 词：拐角频率 地震序列 变化规律 

分 类 号：P315[天文地球—地震学]