中文摘要：

这份报纸调查大小 M _w = 9.30 作为马尼拉沟在华南海(SCS ) 正在成为最危险的海啸来源区域之一。用方程建模的非线性的浅水，表面举起，到达时间，最大的波浪振幅的空间分布和速度分发的时间系列被介绍。波浪和水流的特征被分析。数字结果显示波浪散布在的海啸的精力的那个大多数中央并且 SCS 的北方部分。近海在 SCS 附近的区域将被地震在马尼拉 subduction 地区产生的海啸水流显著地影响。广东省，海南岛，和台湾岛附近的最大的波浪振幅在海岸附近在测量地点的多数超过 4 m 和速度超过 2 m/s。有高分辨率的嵌套的格子被用来在海南岛，台湾岛，和 Lingding 海湾上学习海啸的影响。有高危险风险的区域由于强壮的水流被识别。最后，在 SCS 的一个快海啸警告方法被开发并且讨论，它能在 5 min 提供海啸警告信息。

英文摘要：

This paper investigates the potential extreme tsunami hazards of the worst case scenario of the magnitude M_w=9.30 in South China Sea（SCS）as the Manila Trench is becoming one of the most hazardous tsunami source regions.Using nonlinear shallow water equations model,the time series of surface elevation,arrival time,spatial distributions of maximum wave amplitude and velocity distribution are presented.The characteristics of wave and currents are analyzed.The numerical results indicate that most of the energy of tsunami wave distributes in central and north part of SCS.The offshore regions around SCS will be influenced significantly by the tsunami currents generated by an earthquake in the Manila subduction zone.The maximum wave amplitude near Guangdong Province,Hainan Island,and Taiwan Island exceeds 4 m and velocities at the majority of measured locations near coast exceeds 2 m/s.Nested grid with high resolution is used to study the impacts of the tsunami on Hainan Island,Taiwan Island,and Lingding Bay.The regions with high hazard risk due to strong currents are identified.Finally,a fast tsunami warning method in SCS is developed and discussed,which can provide tsunami warning information in 5 min.