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Source models for the 1993 Hokkaido Nansei-Oki earthquake tsunami |
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| Authors: | Tomoyuki Takahashi Takeyuki Takahashi Nobuo Shuto Fumihiko Imamura Modesto Ortiz |
| Institution: | (1) Disaster Control Research Center, Faculty of Engineering, Tohoku University, 980-77 Sendai, Japan;(2) School of Civil Engineering, Water Resources Engineering, Asian Institute of Technology, G.P.O. Box 2574, 10501 Bangkok, Thailand;(3) Departamento de Oceanografia Fisica, Centro de Investigacion Cientifica y de Education Superior de Ensenada (CICESE), Apartado Postal 2732, 22800 Ensenada, Baja California, Mexico |
| Abstract: | A source model for the 1993 Hokkaido Nansei-Oki tsunami must satisfy certain conditions. Such conditions are presented in this paper, and two methods are used to determine the best source model for this event. A trial-and-error method selects DCRC-17a as the best among 24 different models. This model has three fault planes dipping westward. To reproduce well the tide gauge records at two locations, an inversion analysis is used to modify the dislocation of DCRC-17a. |
| Keywords: | Tsunami numerical simulation inversion analysis fault model Japan Sea |
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