Scenarios of tsunami amplitudes in the north eastern coast of Sea of Marmara generated by submarine mass failure

A. Hayir*, B. Seseogullari, I. Kilinc, A. Erturk, H. K. Cigizoglu, M. S. Kabdasli, O. Yagci, K. Day

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In this paper the tsunamis resulting from a submarine mass failure such as slides and slumps triggered by earthquakes or other environmental effects, which is settled at the bottom of the north eastern Sea of Marmara are examined in one sample region. As the solution method, one hybrid method is developed. The main objective of this method is to combine an analytical solution presenting near-field tsunami amplitudes above the submarine mass failure with a numerical solution indicating the tsunami amplitudes in the coastal regions. For this purpose, one common linear boundary between analytical and numerical solution domains is defined. Movements of Submarine Mass Failures (SMF) are modeled using one simple kinematics source model and the amplitudes of the tsunamis at the region that are closer to the landslide are computed by using the analytical method. SMF is modeled approximately from the bottom geometry, and an average depth is used. Scenarios of SMF are established depending on the velocities and thicknesses of the failure, and near-field tsunami amplitudes are obtained in the open sea during the source time. After the source times, the solutions are found in the numerical region using TELEMAC-2D software system with the mentioned boundary above. In this boundary, the output of the analytical solutions is taken as the boundary conditions or the disturbances for the numerical method. With these disturbances, the numerical method is performed and the amplitudes are calculated in the coastal area. The generation, propagation and coastal amplifications of the tsunamis are illustrated at some certain points and regions both in the open sea and near the coast line. The results have been visualized and discussed.

Original languageEnglish
Pages (from-to)333-356
Number of pages24
JournalCoastal Engineering
Volume55
Issue number5
DOIs
Publication statusPublished - May 2008

Funding

The authors gratefully acknowledge Environment, Atmosphere, Earth and Marine Sciences Research Grant Group under The Scientific and Technological Research Council of Turkey (ÇAYDAG-TÜBİTAK) for providing the financial support for carrying out the research reported here (Project Number: 104Y161).

FundersFunder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
ÇAYDAG-TÜBİTAK104Y161

    Keywords

    • Analytical method
    • Bathymetry map
    • Coastal amplification
    • Hybrid method
    • Near-field tsunami amplitudes
    • Sea of Marmara
    • Shallow water equations
    • Submarine mass failures (SMF)
    • Tsunami generation
    • Tsunamis

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