秋田大学強震動観測施設地点の地震動特性--1989.10.-11.三陸沖群発地震-2-

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Beginning at 02 : 06, October 27, 1989, swarm earthquake occurred in the Pacific Ocean off Sanriku.kaigan, Iwate Prefecture, northern Japan. According to the JMA, an earthquake of the maximum magnitude (7.1) occurred in 143°4.07' E, 39°50.0'N, with a focal depth of 0 m at 03: 25 :34 .8 November 1989. Some earthquakes of the swarm earthquake were observed on the ground surface and under the ground at the strong-motion observatory site of Akita University, Akita City, northern Japan. In previous paper, we analysed all wave forms of two earthquakes of the maximum magnitude (7.1) and magnitude (6.5) with seismic intensity II(JMA) in Akita Meteorology, briefly. In this paper, we analysed wave forms devided into three parts of all wave forms of the two earthquakes, in detail. Moreover, we also analysed other earthquake of magunitude (5.6) with seismic intensity I(JMA) in Akita Meteorology, briefly.
秋田大学教育学部の論文
1992-02-00