Synthetic tsunami mareograms for realistic oceanic models |
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Authors: | Giuliano F Panza Fabio Romanelli & Tatiana B Yanovskaya |
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Institution: | Dipartimento di Scienze della Terra, Via E. Weiss 4, 34127, Trieste, Italy. E-mail:;, International Centre for Theoretical Physics, SAND Group, Trieste, Italy,;CNR-Gruppo Nazionale per la Difesa dei Terremoti, Via Nizza, 128-I-00198, Rome, Italy,;Institute of Physics, St Petersburg University, Petrodvoretz, 198904, St Petersburg, Russia |
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Abstract: | We study how the tsunami mode is generated by a scaled double-couple seismic source, and how it propagates in realistic oceanic models. The method developed and used is the direct extension to tsunami waves propagating in multilayered oceanic media of the well-known Haskell method. The most intensive tsunamis may be expected from sources located within the crust in the deep-water parts of the ocean. The extension to laterally heterogeneous structures shows that, if the thickness of the ocean liquid layer diminishes, the maximum amplitude of the tsunami wave train increases. |
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Keywords: | lateral heterogeneity synthetic mareograms tsunamis |
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