东亚大陆大地震的活动带走向、活动方式、震源主压应力方向、总迁移方向,沿纬度的分布和发震频度随时间的变化,均与地球自转速率变化有成因联系。本文从地球自转加速、减速、匀速的变化趋势进行这方面的观测资料分析,证明地球速率变化是东亚大陆地震的基本动力来源。 The movement direction of the great earthquakes in East Asia, the mode of activity, the principal compressive stress direction of the source, the direction of the total migration, the distribution along the latitude and the frequency of the seismogenic events over time have a genetic relationship with the change of the Earth’s rotation rate. This paper analyzes the observed data from the accelerating, decelerating and uniform changing trend of the Earth’s rotation, and proves that the change of the Earth’s velocity is the basic power source of the earthquake in East Asia.