pure and applied geophysics

, Volume 144, Issue 3–4, pp 735–745 | Cite as

Modeling of the runup heights of the Hokkaido-Nansei-Oki tsunami of 12 July 1993

  • Katsuyuki Abe
Article

Abstract

The Hokkaido-Nansei-Oki earthquake (M w 7.7) of July 12, 1993, is one of the largest tsunamigenic events in the Sea of Japan. The tsunami magnitudeM t is determined to be 8.1 from the maximum amplitudes of the tsunami recorded on tide gauges. This value is larger thanM w by 0.4 units. It is suggested that the tsunami potential of the Nansei-Oki earthquake is large forM w . A number of tsunami runup data are accumulated for a total range of about 1000 km along the coast, and the data are averaged to obtain the local mean heightsH n for 23 segments in intervals of about 40 km each. The geographic variation ofH n is approximately explained in terms of the empirical relationship proposed byAbe (1989, 1993). The height prediction from the available earthquake magnitudes ranges from 5.0–8.4 m, which brackets the observed maximum ofH n , 7.7 m, at Okushiri Island.

Key words

Tsunami magnitude runup tsunami warning 

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References

  1. Abe, K. (1979),Size of Great Earthquakes of 1837–1974 Inferred from Tsunami Data, J. Geophys. Res.84, 1561–1568.Google Scholar
  2. Abe, K. (1981),Physical Size of Tsunamigenic Earthquakes of the Northwestern Pacific, Phys. Earth Planet. Inter.27, 194–205.Google Scholar
  3. Abe, K. (1985),Quantification of Major Earthquake Tsunamis of the Japan Sea, Phys. Earth Planet. Inter.38, 214–223.Google Scholar
  4. Abe, K. (1988),Tsunami Magnitude and the Quantification of Earthquake Tsunamis around Japan, Bull. Earthquake Res. Inst. Tokyo Univ.63, 289–303 (in Japanese with English abstract)Google Scholar
  5. Abe, K. (1989),Estimate of Tsunami Heights from Magnitudes of Earthquake and Tsunami, Bull. Earthquake Res. Inst. Tokyo Univ.64, 51–69 (in Japanese with English abstract).Google Scholar
  6. Abe, K. (1993),Estimate of Tsunami Heights from Earthquake Magnitudes, Proceedings of the IUGG/IOC International Tsunami Symposium TSUNAMI '93, Wakayama, Japan, Aug. 23–27, pp. 495–507.Google Scholar
  7. Aida, I. (1978),Reliability of a Tsunami Source Model Derived from Fault Parameters, J. Phys. Earth26, 57–73.Google Scholar
  8. Hokkaido Tsunami Survey Team (1993),Tsunami Devastates Japanese Coastal Region, EOS Trans. AGU74, 417.Google Scholar
  9. Kajiura, K.,Some statistics related to observed tsunami heights along the coast of Japan, InTsunamis—Their Science and Engineering (eds. Iida, K., and Iwasaki, T.) (Terra Sci. Publ., Tokyo 1983) pp. 131–145.Google Scholar
  10. Nakanishi, I., Kodaira, S., Kobayashi, R., Kasahara, M., andKikuchi, M. (1993),The 1993 Japan Sea Earthquake, EOS Trans. AGU74, p. 34.Google Scholar
  11. Shuto, N. (1994),Tsunami Runup Heights for the Hokkaido-Nansei-Oki Earthquake, Tsunami Engineering Tech. Rep., Disaster Control Research Center, Tohoku Univ., 120 pp.Google Scholar

Copyright information

© Birkhäuser Verlag 1995

Authors and Affiliations

  • Katsuyuki Abe
    • 1
  1. 1.Earthquake Research InstituteThe University of TokyoTokyoJapan

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