【摘要】 考查强震孕育区在主震前一段时间内广义前震的发震时刻与太阳和月亮地方时角的关系，其群体特征表明：某一震级以上地震的发震时间受到太阳和月亮地方时角的控制，且具有一定的物理意义。从抑震的角度探讨了地震预报的可能，并对日、月地方时角差随时间的变化与中强地震的关系作了一些初步的探讨。更多还原

【Abstract】 Observing and studying the relationship between the local hour angles of the sun and the moon and the occurrence of pre-earthquakes sequence before the main earthquake in the seismogenic region,the author finds that the colonial features show that it is in a certain physical sense when M L≥4 earthquakes are controlled by the local hour angles.He also analyses the action of the sun to the earthquake,and preliminarily discusses the relationship between the change of the local hour angles with time and the modetately strong earthquake.更多还原