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本文依据中国大陆地震台网和朝鲜半岛地震台网记录及历史资料,获得了黄海和渤海海域的地震空间分布图象,采用集群分析法进行了地震分带。对1960~1984年地震资料的分析显示,存在3个大的地震带:第一条是北东走向,从中国苏北平原到朝鲜半岛中部;第二条是北西走向,从中国渤海到朝鲜半岛南部;第三条是北西向,从中国辽宁省西部到朝鲜平壤附近。大部分地震都落入这3个带中,地震强度低于大陆,显示出破碎的边缘海盆地地壳特征
Based on the records of China Seismological Network and the Korean Peninsula Seismological Network and the historical data, this paper obtained the seismic spatial distribution images of the Yellow Sea and the Bohai Sea, and carried out the seismic zonation by cluster analysis. The analysis of the seismic data from 1960 to 1984 shows that there are three major seismic belts: the first is the northeast strike from the Northern Jiangsu Plain to the middle of the Korean Peninsula; the second is the northwest strike from the Bohai Sea in China to the Korean Peninsula South; the third is Northwest, from the west of Liaoning Province in China to Pyongyang near North Korea. Most of the earthquakes fall into the three zones with lower seismic intensity than the mainland, showing the crustal features of the crustal marginal basin