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Tsunami hazard assessment in the Ionian Sea due to potential tsunamogenic sources - Results from numerical simulations

机译:潜在海啸发生源对爱奥尼亚海的海啸危害评估-数值模拟结果

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In spite of the fact that the great majority of seismic tsunami is generated in ocean domains, smaller basins like the Ionian Sea sometimes experience this phenomenon. In this investigation, we study the tsunami hazard associated with the Ionian Sea fault system. A scenario-based method is used to provide an estimation of the tsunami hazard in this region for the first time. Realistic faulting parameters related to four probable seismic sources, with tsunami potential, are used to model expected coseismic deformation, which is translated directly to the water surface and used as an initial condition for the tsunami propagation. We calculate tsunami propagation snapshots and mareograms for the four seismic sources in order to estimate the expected values of tsunami maximum amplitudes and arrival times at eleven tourist resorts along the Ionian shorelines. The results indicate that, from the four examined sources, only one possesses a seismic threat causing wave amplitudes up to 4 m at some tourist resorts along the Ionian shoreline.
机译:尽管绝大多数地震海啸是在海域中产生的,但像爱奥尼亚海这样的较小盆地有时也会遇到这种现象。在这项调查中,我们研究了与爱奥尼亚海断裂系统有关的海啸危害。基于情景的方法首次用于估计该区域的海啸危害。与潜在的具有海啸潜力的四个地震震源相关的实际断层参数被用来模拟预期的同震形变,并将其直接转换为水面并用作海啸传播的初始条件。我们计算了四个地震源的海啸传播快照和海象图,以估计海啸最大振幅和沿爱奥尼亚海沿岸的11个旅游胜地的到达时间的期望值。结果表明,在四个被检查的震源中,只有一个震源受到地震威胁,在爱奥尼亚海沿岸的一些旅游胜地,震波振幅高达4 m。

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