The hazard map induced by tsunami-the case study in Jinshan and Wanli

The casualties and damages brought by the South Asia Tsunami in 2004 and the East Japan Tsunami in 2011 have been noted by the whole world. A great tsunami had stroke the northern coast of Taiwan in 1867. The study area is focused on Jinshan District and Wanli District, New Taipei City. The assumed earthquake scenario is used for Cornell University tsunami model (COMCOT model) which simulates the wave height and wave speed of the tsunami triggered by the earthquake. The wave heights of the northern coast of Taiwan are then used as boundary conditions for FLO-2D overland simulation model. With this model, the maximum flood depth, the maximum velocity of the tsunami wave and the maximum water level rise rate are gotten and used for production of tsunami hazard map. The hot spots of assumed scenario can be read from this map and used to take suitable measures to reduce the social impact, the loss of life, and properties.