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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 14 | Copyright
Adv. Geosci., 14, 141-146, 2008
https://doi.org/10.5194/adgeo-14-141-2008
© Author(s) 2008. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  02 Jan 2008

02 Jan 2008

Contribution of nonlinearity in tsunami generated by submarine earthquake

M. A. Nosov, S. V. Kolesov, and A. V. Denisova M. A. Nosov et al.
  • M. V. Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia

Abstract. Rapid co-seismic bottom displacements during strong submarine earthquake give rise to intensive low-frequency elastic oscillations of water layer. Nonlinear energy transfer from the elastic oscillations to long gravitational waves may provide an additional contribution to tsunami. The nonlinear tsunami generation mechanism is examined analytically. Finiteness of bottom elasticity is taken into account. General parameters responsible for amplitude and energy of the nonlinear contribution to tsunami wave are revealed.

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