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在日本第4次地震预报计划中,“利用人工地震对变动带深部构造研究”的第4年度的实验,于1982年10月,在从长野县到山梨县的测线上实施。其测线大体为南北方向,全长约60公里。近3年,在伊豆半岛和长野县周围开展了实验(爆破地震研究组,1981,1982,1985),虽然判明了这些地区的复杂地壳构造(Asano et al.,1982;Yoshil et al.,1985;Lkami et al.,1986),但是本实验希望更详细地得到中部日本们地壳构造情报。
In the 4th Japan Earthquake Prediction Program, “Experiment 4 in the Study of the Deep Structure of Variations Using Artificial Earthquake” was conducted in October 1982 on a survey line from Nagano Prefecture to Yamanashi Prefecture. The line is generally north-south direction, about 60 km in length. In the recent three years, experiments have been conducted around the Izu Peninsula and Nagano Prefecture (Research Group of Blasting Earthquake 1981, 1982, 1985), although complex crustal structures have been identified in these areas (Asano et al., 1982; Yoshil et al., 1985 ; Lkami et al., 1986), but this experiment hopes to obtain the crustal structure information of Central Japan in more detail.