基于活动地块边界带的汶川强余震迁移分析
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摘要
对汶川地震序列分析,发现该序列中ML≥5.0级的强余震活动空间上存在明显空段,强余震围绕该空段有反复迁移发生特征。基于上述现象,作者从地震地质和经纬方向余震迁移的角度上做了一些研究,较为定量地为震区预测发震地点提供了简单依据。
The Wenchuan earthquake sequence is analyzed,and the authors found that the ML≥5.0 strong aftershock empty segment obviously existed in the sequence distribution area and that the strong aftershocks occurred again and again surrounding this empty segment.According to the above mentioned characteristics,the authors researched aftershock activity from the aspect of earthquake geology and aftershock moving in longitude and latitude direction,more quantificationally providing some simple basis for shock area with estimating strong aftershock location.
The Wenchuan earthquake sequence is analyzed,and the authors found that the ML≥5.0 strong aftershock empty segment obviously existed in the sequence distribution area and that the strong aftershocks occurred again and again surrounding this empty segment.According to the above mentioned characteristics,the authors researched aftershock activity from the aspect of earthquake geology and aftershock moving in longitude and latitude direction,more quantificationally providing some simple basis for shock area with estimating strong aftershock location.
引文
[1]陆远忠,李胜乐,邓志辉,等.基于G IS的地震分析预报系统[M].成都:成都地图出版社,2002.
[2]张培震,邓起东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学,2003,33(增刊):12-20.
[3]胡聿贤.地震安全性评价技术教程[M].北京:地震出版社,2003:65-73.
[2]张培震,邓起东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学,2003,33(增刊):12-20.
[3]胡聿贤.地震安全性评价技术教程[M].北京:地震出版社,2003:65-73.
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