And all along the Japanese coast, tsunami warning signs, towering seawalls and well-marked escape routes offer some protection from walls of water.

顺着日本的海岸线，到处可见海啸警告的标志，高耸的海堤和标记明显的逃生路线为人们在巨大水墙到临时提供了一定保护。

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This would first be noticed on land, especially land subject to being flooded, as such a change under the sea would escape notice unless a tsunami buoy sounded an alarm.

这将在陆地上被首先注意到，特殊是遭遇了洪水之害的陆地，因为这样的改变会海下被人察觉，因为海下的这种变化将很难被注意到，除非海啸浮标发出了警报。

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From his smartphone, he captured the scene as the hotel's employees tried to escape the tsunami.

CNN: Witness to disaster: Six months on from Japan's tsunami