掲載雑誌（和）： 日本地震工学シンポジウム論文集 Vol： 8-1巻 年： 1990年 頁： 235-240頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Kojiro IRIKURA, Tomotaka IWATA タイトル（英）： RUPTURE PROCESS AND STRONG GROUND MOTION OF THE 1944 TONANKAI EARTHQUAKE 抄録（英）：
We discuss the rupture process of the 1944 Tonankai earthquake (M=8,0) associated with the generation of strong ground motion, in the near-field. Synthetic ground motions are estimated by use of observed records from an aftershock (the 1945 Mikawa earthquake, M=6.8) and compared with observed seismograms to examine static fault models mainly derived from geodetic data. First we assume two faulting models to synthesize ground motions for the 1944 Tonankai earthquake. One is a single shock model derived by Ando (1975) on the basis of the aftershock distribution, crustal deformation and tsunami data. The other is a multi-shock with a southern and a northern plane derived by Aida (1979) to match the tsunami records. Both models have almost the same total seismic moment. For the 1945 Mikawa earthquake used as empirical Green's function, we adopt the moment and fault area determined by Ando (1974) on the basis of the geodetic data. Various parameters required for synthesis are given from the moment ratio between the mainshock and the aftershock and the scaling relations empirically obtained. The synthetic motions for the single shock model show larger amplitudes than those for the multi-shock model, giving relatively better agreement with the observed ones. To fit the synthetics to the observed not only in amplitude but also in phase, we need to consider smaller area to generate high frequency motions within the fault area of the Ando's model. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集