Question

What happens to the tsunami when it reaches the shore?​

Answer 1

What Happens When It Hits Land. A tsunami's trough, the low point beneath the wave's crest, often reaches shore first. When it does, it produces a vacuum effect that sucks coastal water seaward and exposes harbor and sea floors.

Answer 2

the tsunami’s speed decreases and begins to become shallow, but the height of it begins to grow