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A STUDY OF THE EFFECT OF PERMEABILITY OF ROCKS IN TSUNAMI GENERATION AND PROPAGATION BY SEISMIC FAULTING USING LINEARIZED SHALLOW – WATER WAVE THEORY

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Author(s): PARUL SAXENA | LOKENDRA KUMAR

Journal: Science of Tsunami Hazards
ISSN 8755-6839

Volume: 31;
Issue: 1;
Start page: 62;
Date: 2012;
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Keywords: Tsunami Modeling | Water wave | permeability | Laplace and Fourier Transform

ABSTRACT
The effect of permeability of rocks inside the ocean on Tsunami generation and Propagation is investigated. We study the nature of Tsunami build up and propagation using realistic curvilinear source models. The models are used to study the effect of permeability on tsunami amplitude amplification as a function on spreading velocity and rise time. Effect of permeability on Tsunami waveforms within the frame of the linearized shallow water wave theory for constant water depth are analyzed analytically using Transform methods. It is observed that in the region of highly permeable rocks the tsunami wave run is fast in comparison to low permeable rocks. The amplitude as a function of the propagated uplift length and width are analyzed. The cases of Tsunami-2011 (Japan), Tsunami- 2006 (Srilanka), and Tsunami-2006 (Madras) have been demonstrated in the study.
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