【摘要】 利用历史地震记载和现代地震观测资料,论述渤海海域7级以上地震的概况,分析渤海海域及邻区地震活动的空间和时间分布特征,讨论地震活动性特征与区域断裂构造的关系。结果表明,渤海海域及邻区的地震空间分布图像表现出成带、分段特征,在时间上有平静期与活跃期之分——这是由区域断裂构造特点决定的。更多还原

【Abstract】 The earthquakes of M≥7 in the Bohai sea are discussed with the historical earthquake records and modern earthquake observation data. Also the paper analyses and studies the spatial and temporal distribution characteristics of seismicity and its relation with the fault tectonics in Bohai sea and its adjacent regions. With the inner connection between the seismicity and the fault tectonics in the region, the results show that the characteristics of seismicity have belts and segmentations in space, and have the active and quiet stages by time in Bohai sea and its adjacent regions更多还原