TSUNAMI GENERATION OF THE 1993 HOKKAIDO-NANSEI-OKI EARTHQUAKE

被引:32
|
作者
SATAKE, K
TANIOKA, Y
机构
[1] Department of Geological Sciences, University of Michigan, Ann Arbor, 48109-1063, MI
关键词
TSUNAMIS; 1993 HOKKAIDO NANSEI-OKI EARTHQUAKE; OKUSHIRI ISLAND;
D O I
10.1007/BF00874395
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Heterogeneous fault motion of the 1993 Hokkaido Nansei-Oki earthquake is studied by using seismic, geodetic and tsunami data, and the tsunami generation from the fault model is examined. Seismological analyses indicate that the focal mechanism of the first 10 s, when about a third of the total moment was released, is different from the overall focal mechanism. A joint inversion of geodetic data on Okushiri Island and the tide gauge records in Japan and Korea indicates that the largest slip, about 6 m, occurred in a small area just south of the epicenter. This corresponds to the initial rupture on a fault plane dipping shallowly to the west. The slip on the northernmost subfault, which is dipping to the east, is about 2 m, while the slips on the southern subfaults, which are steeply dipping to the west, are more than 3 m. Tsunami heights around Okushiri Island are calculated from the heterogeneous fault model using different grid sizes. Computation on the smaller grids produces larger tsunami heights that are closer to the observed tsunami runup heights. Tsunami propagation in the nearly closed Japan Sea is examined as the free oscillation of the Japan Sea. The excitation of the free oscillation by this earthquake is smaller than that by the 1964 Niigata or 1983 Japan Sea earthquake.
引用
收藏
页码:803 / 821
页数:19
相关论文
共 50 条
  • [41] AN INVESTIGATION OF TSUNAMI GENERATED BY THE URAKAWA-OKI EARTHQUAKE OF 1982
    HATORI, T
    BULLETIN OF THE EARTHQUAKE RESEARCH INSTITUTE-UNIVERSITY OF TOKYO, 1982, 57 : 525 - 535
  • [42] Atmospheric boundary waves excited by the tsunami generation related to the 2011 great Tohoku-Oki earthquake
    Arai, Nobuo
    Iwakuni, Makiko
    Watada, Shingo
    Imanishi, Yuichi
    Murayama, Takahiko
    Nogami, Mami
    GEOPHYSICAL RESEARCH LETTERS, 2011, 38
  • [43] The tsunami source area of the 2003 Tokachi-oki earthquake estimated from tsunami travel times and its relationship to the 1952 Tokachi-oki earthquake
    Hirata, K
    Tanioka, Y
    Satake, K
    Yamaki, S
    Geist, EL
    EARTH PLANETS AND SPACE, 2004, 56 (03): : 367 - 372
  • [44] The tsunami source area of the 2003 Tokachi-oki earthquake estimated from tsunami travel times and its relationship to the 1952 Tokachi-oki earthquake
    Kenji Hirata
    Yuichiro Tanioka
    Kenji Satake
    Shigeru Yamaki
    Eric L. Geist
    Earth, Planets and Space, 2004, 56 : 367 - 372
  • [45] Inflow and outflow facies from the 1993 tsunami in southwest Hokkaido
    Nanayama, Futoshi
    Shigeno, Klyoyuki
    SEDIMENTARY GEOLOGY, 2006, 187 (3-4) : 139 - 158
  • [46] EVOLUTION OF THE 2011 TOHOKU EARTHQUAKE TSUNAMI ON THE PACIFIC COAST OF HOKKAIDO
    Watanabe, Yasunori
    Mitobe, Yuta
    Saruwatari, Ayumi
    Yamada, Tomohito
    Niida, Yasuo
    COASTAL ENGINEERING JOURNAL, 2012, 54 (01)
  • [47] INVESTIGATION OF TSUNAMI GENERATED BY THE URAKAWA-OKI EARTHQUAKE OF 1982.
    Hatori, Tokutaro
    Bulletin of the Earthquake Research Institute, University of Tokyo, 1982, 57 (pt 3): : 525 - 535
  • [48] The dynamic rupture process of the 1993 Kushiro-oki earthquake
    Ide, S
    Takeo, M
    JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1996, 101 (B3) : 5661 - 5675
  • [49] Dispersion and nonlinear effects in the 2011 Tohoku-Oki earthquake tsunami
    Saito, Tatsuhiko
    Inazu, Daisuke
    Miyoshi, Takayuki
    Hino, Ryota
    JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2014, 119 (08) : 5160 - 5180
  • [50] Simulation of response of the Kushiro River Dike to the 1993 Kushiro-oki and 1994 Hokkaido Toho-oki earthquakes
    Finn, WDL
    Sasaki, Y
    Wu, G
    PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, VOL 1: TECHNICAL PAPERS, 1997, : 99 - 102