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前言在日本的十几条地震断层中,作为走向滑动共扼断层出现的,只有丹后地震和北伊豆地震两例。伴随1927年丹后地震(M=7.5)出现的乡村一山田地震断层,在世界上是著名的。丹后地震时,以创办刚刚2年的地震研究所为中心,开展了综合调查研究,并取得了重要的成果,特别值得提出的是 Yamasaki & Tada(1927)和渡边·佐藤(1928)等人的断层详细记录、Tsuboi(1930)的地壳运动分析等。另外,作为活断层系的乡村、山田断层特性的详细情况尚未弄清,只限于《日本的活断层》
Preface In the dozen of Japan’s seismogenic faults, there are only two cases of the Dan-Tango earthquake and the North Izu earthquake as the strike-slip conjugate faults. The Yamaichi-Yamazaw earthquake fault that accompanied the 1927 Danish earthquake (M = 7.5) is prestigious in the world. At the time of the Tango earthquake, a comprehensive survey was conducted focusing on the establishment of the Institute of Seismology just two years ago. Important achievements have been made. In particular, Yamasaki & Tada (1927) and Watanabe Sato (1928) Detailed records of human faults, and crustal movement analysis by Tsuboi (1930). In addition, the details of Yamada fault features in the villages of the active fault system have not yet been clarified and are limited to “the active fault in Japan”