地震地磁观测与研究2017，Vol.38Issue(4)：7-14,8.DOI:10.3969/j.issn.1003-3246.2017.04.002
河套地震带分区地震空间相关长度变化特征
Correlation length spatial distribution characteristics in Hetao seismic zone
摘要
Abstract
Take the Hetao seismic zone as the study area,selected small earthquake events since 2001,using the SLC method to calculate the seismic spatial correlation length,temporal variation characteristics of correlation length was discussed.Results show that since 2001,correlation length showed different spatial characteristics in 5 sub regional,and the correlation length of each sub region did not show a continuous change.In 3 years time scale,correlation length growth showed growth phenomenon and showing that the correlation length growth spatial change is unlikely to reflect the regional long-term change the force field,and is likely to carry the mid change information of stress field.By setting different calculation window length and sliding step to verify the calculation results reveal the space-time distribution of seismic events,we know that the factors such as heterogeneity,shape and size of the spatial window may influence the magnitude of the spatial correlation length,but do not affect the overall trend.关键词
河套地震带/地震相关长度/单键群构架(SLC)Key words
Hetao seismic belt/seismic correlation length/SLC frame引用本文复制引用
张国清,韩晓明,张帆..河套地震带分区地震空间相关长度变化特征[J].地震地磁观测与研究,2017,38(4):7-14,8.基金项目
2016年内蒙古自治区科技重大专项“重点地区地震预测预警技术研究开发与推广示范” （）
中国地震局监测预报司震情跟踪面上项目(项目编号:2017020102) （项目编号:2017020102）
