Ok by exaggerated I mean their height, not their power, because I know they have the power to bend parking meters, and carry away houses.
People say that the tsunamis in Japan and the Indian ocean tsunamis were almost 100 ft high . But when I see the videos I see that their only as tall as a house , or 1 story building. 100 ft tsunamis should tower over them but they don't. So why do people say their like 100 ft tall.
Scientific answers only, I need answers???
People say that the tsunamis in Japan and the Indian ocean tsunamis were almost 100 ft high . But when I see the videos I see that their only as tall as a house , or 1 story building. 100 ft tsunamis should tower over them but they don't. So why do people say their like 100 ft tall.
Scientific answers only, I need answers???
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I'll be honest, I have personally never heard anyone claim a 100' wall of water hitting land. In the time that we've have human civilization.
Tsunamis are gravity waves, with little to no surface expression in the open ocean. However, like any wave, when they get into shallower water, they are forced to slow down. This means that the water behind them has to "pile up" because it has nowhere else to go. This results in an increased face. I've heard up to 40-50' in height at most.
It's not the wave face hitting the shore that is the problem, because even when they crash, they tend to quickly turn into a "simple" swell that surges through cities and across plains. This is where you see them washing away homes and buildings much lower than 100' high. There's no huge face, the front of the wave has passed and you're now experiencing the full force of the water behind it. However! As the wave does continue to rise with the terrain and such, you might end up getting a "gentle" swell of terrifying water to reach greater heights, just like continually throwing buckets of water up your driveway.
You can think of this much the same way as what you see at the beach. You might have a surfer on a 6' face, but when that face crashes, it "opens up" room for the water behind it, and it swells forward onto the beach. It's *still* deep enough to be dangerous, but it is now much lower than the original 6' face.
That's the scientific answer!
Tsunamis are gravity waves, with little to no surface expression in the open ocean. However, like any wave, when they get into shallower water, they are forced to slow down. This means that the water behind them has to "pile up" because it has nowhere else to go. This results in an increased face. I've heard up to 40-50' in height at most.
It's not the wave face hitting the shore that is the problem, because even when they crash, they tend to quickly turn into a "simple" swell that surges through cities and across plains. This is where you see them washing away homes and buildings much lower than 100' high. There's no huge face, the front of the wave has passed and you're now experiencing the full force of the water behind it. However! As the wave does continue to rise with the terrain and such, you might end up getting a "gentle" swell of terrifying water to reach greater heights, just like continually throwing buckets of water up your driveway.
You can think of this much the same way as what you see at the beach. You might have a surfer on a 6' face, but when that face crashes, it "opens up" room for the water behind it, and it swells forward onto the beach. It's *still* deep enough to be dangerous, but it is now much lower than the original 6' face.
That's the scientific answer!
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In the deep sea a tsunami is only millimetres high but it s travelling at hundreds of km /hour and it has immense stored energy; while it not noticeable to a ship.As it enters shallower water the energy remains but the water level is forced higher by a wedge effect and so slows and rises in order to carry the energy which cannot easily be expended.Just how high it rises depends on the energy it has and the steepness of the slope it encounters.Anyone who watches ordinary waves hitting a sea-wall will easily see how a wave rises on meeting an obstacle.Surfers are well aware of the effect of beach slope on roller height.