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Book Chapter

Understanding tsunamis, potential source regions and tsunami-prone mechanisms in the Eastern Mediterranean

By
S. Yolsal
S. Yolsal
Department of Geophysical Engineering, Seismology Section, the Faculty of Mines, Istanbul Technical University, Maslak TR-34469, Istanbul, Turkey (e-mail: yolsalse@itu.edu.tr)
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T. Taymaz
T. Taymaz
Department of Geophysical Engineering, Seismology Section, the Faculty of Mines, Istanbul Technical University, Maslak TR-34469, Istanbul, Turkey (e-mail: yolsalse@itu.edu.tr)
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A. C. Yalçiner
A. C. Yalçiner
Department of Civil Engineering, Ocean Engineering Research Centre, Middle East Technical University, TR-06531, Ankara, Turkey
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Published:
January 01, 2007

Abstract

Historical tsunamis and tsunami propagation are synthesized in the Eastern Mediterranean Sea region, with particular attention to the Hellenic and the Cyprus arcs and the Levantine basin, to obtain a better picture of the tsunamigenic zones. Historical data of tsunami manifestation in the region are analysed, and compared with current seismic activity and plate interactions. Numerical simulations of potential and historical tsunamis reported in the Cyprus and Hellenic arcs are performed as case studies in the context of the nonlinear shallow-water theory. Tsunami wave heights as well as their distribution function are calculated for the Paphos earthquake of 11 May 1222 and the Crete earthquake of 8 August 1303 as illustrative examples depicting the characteristics of tsunami propagation, and the effects of coastal topography and near-shore amplification. The simulation studies also revealed that the long-normal distributions are compatible with reported damage. Furthermore, it is necessary to note that high-resolution bathymetry maps are a crucial component in tsunami wave simulations, and this aspect is rather poorly developed in the Eastern Mediterranean. The current study also demonstrates the role of bottom irregularities in determining the wave-height distribution near coastlines. Assuming the probability of occurrence of destructive tsunamigenic earthquakes, these studies will help us to evaluate the tsunami hazard for the coastal plains of the Eastern Mediterranean Sea region. We suggest that future oceanographic and marine geophysical research should aim to improve the resolution of bathymetric maps, particularly for the details of the continental shelf and seamounts.

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Contents

Geological Society, London, Special Publications

The Geodynamics of the Aegean and Anatolia

T. Taymaz
T. Taymaz
Istanbul Technical University, Turkey
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Y. Yilmaz
Y. Yilmaz
Kadir Has University, Istanbul, Turkey
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Y. Dilek
Y. Dilek
Miami University, Ohio, USA
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Geological Society of London
Volume
291
ISBN electronic:
9781862395398
Publication date:
January 01, 2007

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