我国华北地区与西南地区在历史上相继发生六级以上地震的震例,与我国其它地区相比较,这两个地区的这种相关性特别明显。尤其在1966年2月云南东川地震之后,西南地区与华北地区相继发生六级以上地震的相关性更为突出。对这种现象,我们从板块构造的角度解释为这两个地区地下构造运动进入了一个新的“相期”。 In the history of North China and Southwest China, more than six earthquakes occurred in history. Compared with other regions in our country, the correlation between these two regions is particularly obvious. Especially in February 1966 after the Dongchuan earthquake in Yunnan Province, the correlation between the earthquakes with magnitude more than 6 in the southwest region and the north China region became more prominent. For this phenomenon, we explain from the perspective of plate tectonics that the underground tectonic movement in these two regions has entered a new “phase”.