赤峪断裂是临汾盆地北部第四纪隆起区一系列北北东向断裂中的主要断裂,形成于燕山运动,上新世末及中更新晚期有过两次强烈活动.最新的一次活动在晚更新世中晚期,晚更新世末至全新世该断裂趋于稳定.研究认为,1303年洪洞8级地震与该断裂无关. The Chiyu fault is the main fault in a series of NE-trending faults in the Quaternary uplift in the northern part of Linfen Basin, forming two strong activities during the Yanshan movement, the late Pleistocene and late middle-late. The latest activity was late at night In the late Pleistocene, the fault tended to be stable from the late Pleistocene to the Holocene, and the study concluded that the 1303 Hongtong M8 earthquake had nothing to do with the fault.