西秦岭北麓活动断裂带,系我国中西部地区规模宏伟的活动构造带之一。(车免)近时期以来活动性强,历史上曾发生过强破坏性地震多次。因此,深入了解第四纪以来断裂带活动特点及其与地震发生的关系,对探讨地震发生的地质构造背景,从而为中长期地震预测预报提供地质依据是有重要意义的。 The active fault zone in the northern foot of West Qinling Mountains is one of the magnificent tectonic belts in the central and western regions of China. (Vehicle-free) Since the recent activity has been strong, there have been many destructive earthquakes in history many times. Therefore, a deep understanding of the characteristics of fault activity since the Quaternary and its relationship with the occurrence of the earthquake is of great significance to discuss the geological tectonic setting of earthquakes and provide the geological basis for the long-term earthquake prediction.