Do Tsunamis only bring negative impacts? Do they have any advantages or just a tragedy only?

Hey the last one was great for building contractors and material suppliers because they made fortunes selling rebuilding materials.

If there is any good coming out of killing a bunch of people and wiping landscapes clean or changing coastlines, the maybe. I don't think any survivors of tsunamis throughout history would think so.

Bad almost always is followed by good.

hmmm well let me think about that one:
hmmm well many many people die, whole villages are whipped opf the face of the earth, nature is comletely ruined..hmmm when the wATER leaves come the diseases, teh country hit by atsunami has to pay loads of money to fix everything and help the survivors, tourists avoid the area... now let me see if i find any good aspect... in thailand a few hundred child molester died in the tsunami ,, well that is about it really.. so ,yes only negative impacts and that one good one...

they are natures way of removing human trash from the beaches and low lands