Quantitative Analysis of Potential Tsunami Hazard in the South China Sea

被引：0

作者：

Xu L. ^{[1
]}

Chen X. ^{[1
]}

Yang T. ^{[1
]}

Li F. ^{[1
]}

机构：

[1] Institute of Remote Sensing and Geographical Information System, Peking University, Beijing

来源：

Beijing Daxue Xuebao (Ziran Kexue Ban)/Acta Scientiarum Naturalium Universitatis Pekinensis | 2019年 / 55卷 / 03期

关键词：

COMCOT; Earthquake magnitude; First; Focal depth; Quantitative analysis; South China Sea; Tsunami; wave amplitude;

D O I：

10.13209/j.0479-8023.2019.015

中图分类号：

学科分类号：

摘要：

The COMCOT model was used to analyze the potential hazards of the tsunami source in Manila Trench. By changing the information of the two tsunami initial fields - magnitude and source depth, the quantitative relationship between the first wave amplitude and the two is revealed when the tsunami landed in China's coastal areas. The results show that the influence amplitude of different focal depths on the amplitude of the first wave can reach 50%. With the different magnitude of earthquake, the influence of the focal depth on the amplitude of the first wave is also different. The amplitude of the first wave of the tsunami landing basically increases with the magnitude. However, during the process of the tsunami spreading to the near shore, the tsunami wave will overlap with the reflection wave near the shore, which may cause the first wave landing amplitude to decrease abnormally. When the magnitude reach Mw 8.6, the tsunami level is 1 and some coastal areas will be threatened by tsunami. © 2019 Peking University.

引用

页码：445 / 450

页数：5

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