浪底到浪峰仅几厘米或几米高的海啸水浪，当其到达海岸时可能成为高达30到50米的巨浪，具有极大的破坏力。
A tsunami that is just a few centimeters or meters high from trough to crest can rear up to heights of30 to50 meters as it hits the shore , striking with devastating force .
浪当