1950年以来,我国的爆破地震动力研究小组用陆上爆破法来确定日本列岛的地壳构造,从1964年开始,做为上地幔计划的一个主题已进行了相当大规模的观测。1965年3月在气仙沼外海上进行爆破,第二次在陆上测线上进行观测,参加的发射船是《明洋》号,接收船是《清风丸》。之后,于1966年3月,《胜丸》(日本近海捕鲸船约400吨)在男鹿外海进行爆破,5月《第23兴南丸》在渥美外海进行爆破。但是,认识到仅在几个陆上进行观测,连日本周围的资料也不能得到。因此,通过日美合作,许多研究者在熟悉了海上观测的二十世纪六十年代的后半期,成立了较爆破地震研究小组更为独立的深海地震探查小组的团体(没有 Since 1950, China’s blasting seismic power research group has used onshore explosions to determine the crustal structure of the Japanese archipelago. Since 1964, a fairly large-scale observation has been conducted as a theme of the upper mantle program. In March 1965, blasting was carried out in the sea outside Kesennuma and the second time the observation was conducted on the onshore survey line. The participating launch ship was “Mingyang” and the receiving vessel was “Qingfengwan”. Then, in March 1966, “Katsumaru” (about 400 tons of Japanese offshore whalers) was exploded off the coast of Oga and “23rd Hanamanumaru” burst in May on the Atsumi Sea. However, recognizing that observations are only made on several lands, even the data around Japan can not be obtained. As a result, through the Japan-US cooperation, many researchers established a more independent group of deep-sea seismic exploration groups than the blasting seismic research team in the second half of the 1960s, familiar with offshore observations