北天山流动水准重复测量资料的前兆异常特征初析
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摘要
通过对北天山地区跨断层流动水准观测资料的分析,可以看出,北天山地区跨断层流动水准观测值的变化较好地反映了各断裂带、地震前后的地壳垂直形变运动特征。由于各断裂带、各测线与震中的距离不同,它们所反映出的地壳垂直形变运动特征和变化量也不相同。流动水准观测资料对北天山中西部地区5~6级以上地震有较好的震前反映,前兆信息明显。
The analysis of fault-crossing mobile level data in northern Tianshan area showed the variation of observation data reflected crust vertical deformation movement characteristics of all faults before and after earthquakes in northern Tianshan area.Because of the difference of fault belts,various survey lines and the epicenter distance,the movement characteristics and change range reflected are also different.The mobile level observation data have obvious reflection before the MS5~6 earthquakes in the northern Tianshan area.
The analysis of fault-crossing mobile level data in northern Tianshan area showed the variation of observation data reflected crust vertical deformation movement characteristics of all faults before and after earthquakes in northern Tianshan area.Because of the difference of fault belts,various survey lines and the epicenter distance,the movement characteristics and change range reflected are also different.The mobile level observation data have obvious reflection before the MS5~6 earthquakes in the northern Tianshan area.
引文
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[3]王治民,张永岗,冯向东.7.9级地震前乌鲁木齐形变站垂直形变异常特征初析[J].内陆地震,2008,22(1):78-83.
[4]江在森,丁平,王双绪,等.中国西部大地形变监测与地震预测[M].北京:地震出版社,2001.
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