Simulation of Tsunamis from Great Earthquakes on the Cascadia Subduction Zone
Simulation of Tsunamis from Great Earthquakes on the Cascadia Subduction Zone
复制标题
卡斯卡迪亚俯冲带大地震引发的海啸模拟
DOI：
10.1126/science.250.4985.1248
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发表时间：
1990
期刊：
影响因子：
56.9
通讯作者：
T. Murty
中科院分区：
文献类型：
--
作者：
M. K. Ng;P. Leblond;T. Murty
大地震在卡斯卡迪亚俯冲带时有发生。一个数值模型被用来模拟和评估与俯冲带北段破裂有关的8.5级地震所产生的海啸的危害。外海岸的波浪振幅与海底位移（5.0米）的大小密切相关。在一些沿海海湾，可能会出现一些放大，达到3倍。普吉特海湾和乔治亚海峡受保护水域的波浪振幅预计只有外海岸估计的五分之一左右。
Large earthquakes occur episodically in the Cascadia subduction zone. A numerical model has been used to simulate and assess the hazards of a tsunami generated by a hypothetical earthquake of magnitude 8.5 associated with rupture of the northern sections of the subduction zone. Wave amplitudes on the outer coast are closely related to the magnitude of sea-bottom displacement (5.0 meters). Some amplification, up to a factor of 3, may occur in some coastal embayments. Wave amplitudes in the protected waters of Puget Sound and the Strait of Georgia are predicted to be only about one fifth of those estmated on the outer coast.