With different geographic position and tectonic section , the deep character of crust and lithosphere in the middle tienshan mountain , the northern altai mountain and southwestern kunlun - alkin mountain are very different , which have a common necessary relation as a whole , and also special regional feature 由于地理位置和所处的构造部位的不同,中部天山山脉、北部阿尔泰山脉、西南部昆仑阿尔金山脉在地壳岩石圈深部特征都有很大差异,它们有整体共性的必然联系,也有区域个性的特殊面貌。
( 2 ) the structure condition of the earthquake happened : ms 6 . 0 earthquake frequently happened several special structure place as follows : the intervein or the intersect of two deep and large rupture that their activity were very strong , the east of yulong - jiuzihai rupture and yulong snow mountain rupture ( 2 )区域强震发生的构造条件:区域ms 6 . 0级强震活动主要发生在如下几类特殊的构造部位:两组现今活动较强深大断裂相互交错或交汇部位;玉龙?九子海三角形断块东部尖端附近局部张应力异常区内的近sn向玉龙雪山东缘断裂。