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Advances in Geosciences An open-access journal for refereed proceedings and special publications

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Adv. Geosci., 14, 141-146, 2008
© Author(s) 2008. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
02 Jan 2008
Contribution of nonlinearity in tsunami generated by submarine earthquake
M. A. Nosov, S. V. Kolesov, and A. V. Denisova 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.

Citation: Nosov, M. A., Kolesov, S. V., and Denisova, A. V.: Contribution of nonlinearity in tsunami generated by submarine earthquake, Adv. Geosci., 14, 141-146,, 2008.