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鄂西地区4级以上地震呈现一种有规律的南北跳迁现象。文中分析了这种跳迁的特征,指出这与武当、黄陵两个旋卷构造体系的活动有关。多年来,许多学者在研究鄂西地区的地震活动时,常把这一地区划为南北两部分分别进行讨论,却很少注意到它们之间的相关性,因而对4级以上地震所呈现的一种有规律的南北跳迁现象关注不够。本文旨在搞清这种地震跳迁的特征,并讨论其与构造的关系及在地震预报中的作用。
Earthquakes of magnitude 4 or above in Western Hubei Province show a regular phenomenon of north-south transition. This article analyzes the characteristics of this transition, pointing out that this is related to the activities of two spiral-volume tectonic systems in Wudang and Huangling. Over the years, many scholars in the study of seismic activity in western Hubei Province, often divided this area into two parts of the North and South were discussed, but seldom noticed the correlation between them, and thus presented for more than 4 earthquakes A regular north-south jump phenomenon is not enough attention. The purpose of this paper is to clarify the characteristics of such earthquakes and to discuss their relationship with tectonics and their role in earthquake prediction.