0
It varies considerably. In some cases water level fluctuations from what is technically a tsunami may be as small as a few inches and might not even be noticed by beach-goers. In some cases a tsunami may be over 100 feet high. Megatsunamis triggered by landslides and asteroid impacts may be thousands of feet high. The reason tsunamis are so destructive is more because of their wavelength. A tsunami will have a much longer wavelength than normal ocean waves and so carry a much larger volume of water. While a wind-driven wave usually washes in and out in a matter of seconds, a tsunami can continue to surge inward for several minutes. A normal ocean wave 10 feet high is of little consequence, but a 10 foot tsunami can severely inundate low-lying coastal communities.
Wiki User
∙ 6y ago
Wiki User
∙ 15y agoIt is about 3 inches or a bit more in the open sea, as it is almost impossible to be seen from the shore as the seabed is deep. When the tsunami reaches shore, it gets more and more obvious as the seabed gets shallower and it rises to about 1000+ ft.
Wiki User
∙ 15y agoAlthough most are much smaller, some tsunamis have exceeded 100 feet (30 meters) in height when reaching shore.
Wiki User
∙ 11y agotsunamis averag heights are about 20 feet to 100 feet tall
Wiki User
∙ 14y agoa tidal wave can vary, but is aprox. 25m the biggest is 524m
Wiki User
∙ 13y agoThere is no maximum height unless it reaches the ozone layers
Wiki User
∙ 13y agoabout 30m or more.
Wiki User
∙ 13y agoreally really tall
Add your answer:
Earn +20 pts
Why does tsunami wave grow so high when it reaches the shore?
When a wave is traveling in deep water, its bottom is at a set depth. As it comes ashore, the wave tries to stay the same wave height. since the land is denser than the water, the water is forced upward. That upward movement is the height of the tsunami.
Why doesn't a tsunami wave break?
Tsunami waves have a much longer wavelength in proportion to their height than ordinary waves do. They are often miles long.
How do you measure the strength of a tsunami?
The usual measure of a tsunami is the height of the wave just as it reaches the beach.
How does the speed and wave height vary according to the depth of the ocean when there is a tsunami?
Tsunamis wave energy extends from the surface to the bottom in the deepest waters. As the Tsunami attacks the coast line, the wave energy is compressed into a much shorter distance creating destructive , life-threatening waves.
What was the height of the largest tsunami wave that struck the area of Japan?
The disaster reached .9 which is very bad.
What happened to the wave height of a Tsunami as it approaches a Shoreline?
it gets higher
Why does tsunami wave grow so high when it reaches the shore?
When a wave is traveling in deep water, its bottom is at a set depth. As it comes ashore, the wave tries to stay the same wave height. since the land is denser than the water, the water is forced upward. That upward movement is the height of the tsunami.
What angle a body is projected to get maximam height?
45 degrees
What was the height of the highest tidal wave to hit japan?
The biggest tsunami was 85meters[statue of liberty]
Why doesn't a tsunami wave break?
Tsunami waves have a much longer wavelength in proportion to their height than ordinary waves do. They are often miles long.
How do you measure the strength of a tsunami?
The usual measure of a tsunami is the height of the wave just as it reaches the beach.
How does the speed and wave height vary according to the depth of the ocean when there is a tsunami?
Tsunamis wave energy extends from the surface to the bottom in the deepest waters. As the Tsunami attacks the coast line, the wave energy is compressed into a much shorter distance creating destructive , life-threatening waves.
What was the height of the largest tsunami wave that struck the area of Japan?
The disaster reached .9 which is very bad.
Is a tsunami a giant wave?
Yes, a tsunami is a giant wave.
What is a huge sea wave caused by undersea earthquake?
a tsunami is a tidal wave caused by an underwater earthquake :]
How is a tsunami wave detected?
A tsunami wave can be detected by a wave gauge and pressure monitors.
What did the 2004 tsunami measure on the Richter scale?
The Richter scale is a measure of the energy released at the focus of the earthquake, which was a magnitude 9.0 quake that triggered the tsunami. A tsunami can be measured in wave height and wave speed and it was reported that the height of a tsunami wave that struck a coastal city in Japan's on March 11 at just over 77 feet high. In most places the waves were up to 4 stories high at 10 meters (33 feet). The wave speed was estimated to be 500mph or 800 kilometers per hour.
