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Answered 2008-11-21 07:13:35

It will start to get higher as the seafloor gets shallower, and the wave will engulf the coast, flooding the lands around the area and causing casualties and damages. For more information on the damages caused, see related question below.

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Six waves reach the shore in 30 seconds what is the frequency of the wave?

If six waves reach the shore in 30 seconds the frequency is 5 waves per second.


What is the frequency of the waves traveling to the shore if six waves reach the shore in 30 seconds?

The frequency of the waves is 0.20 HZ.


What happens when waves come near the shore?

they break


What happens to wavelengths as waves approach shore?

they get shorter


What happens to waves as they approach the shore?

When the waves approach the shore, they touch the bottom. The base of the wave is slowed down. They break apart as they hit the shore line.


What are big waves that turn into foam when they reach the shore called?

currents


What is the difference between a tsunami and a wind wave?

Wind waves, I believe, don't have waves that go as high as the waves of a tsunami. Tsunamis are generated by a subduction in the underwater plates beneath the seabed. Wind waves are created after harsh storms (including hard rains): The waves start to get higher and higher from the wind. When a tsunami hits the shore, more waves come afterward: at least three. When a wind wave hits the shore, the waves continue again and again until they die down, or the storm. - Blue Willow


What is the difference between seismograph and tsunami?

A seismograph is an instrument used to measure seismic waves in the earth's crust. In other words a seismograph detects earthquakes. A tsunami occurs when there is an earthquake at sea. The earthquake causes colossal tidal waves to form and the waves crash onto shore. This is a tsunami.


Seismic sea waves becomes more dangerous as they get closer to shore and can be very destructive?

Its is called a Tsunami.


Ben counts the number of waves traveling to the shore. six waves reach the shore in 30 seconds. what is the frequency of the wave?

The frequency is 720Hz


How does an asteroid cause a tsunami?

A tsunami will occur when an asteroid falls into water bodies. It will cause a rapid displacement of water and create a series of waves. The waves will then travel in all directions at high speeds. When the waves reach the coastlines, the waves will get higher as the seafloor gets raised, and a tsunami strikes.


What happens to waves as they slow down and approach shore?

it keeps on slowing down and hitsthe shore.


What happens when tsunami erupts?

Nothing . . . tsunamis are ocean waves, not volcanoes.


How are tsunamis different from just big ocean waves?

An ordinary large wave has a short wavelength. When it reaches shore it will break wash in, and wash out in a matter of seconds. A tsunami wave behaves in a much different way. Such waves can be hundreds of miles in wavelength. When they reach shore, they do not behave as breaking waves, but rather come in as a massive surge of water, that continues to come in for several minutes.


How far can tsunami waves reach?

all the way around the world , but most are limited to where they started


What are the signs of an approaching tsunami?

If the tsunami is caused by an earthquake, a slight rumble can be heard, and the ground might shake. As the waves approach shore, the water near the shore will recede dramatically, leaving fish, seaweed coral and such like. (following a 'sucking* sound'). A clear rumble should be heard. The fast moving waves will start to get higher as the seafloor gets shallower near the coastline. This forms a 20m wall of waves (a tsunami) and the waves will crash onto shore and rush inland. Sometimes, warnings are given to the country and surrounding countries. *Note that 'sucking' means being sucked in, and is not a vulgarity.


If an earthquake happens under the ocean it causes giant waves called?

These waves are called "Tsunami" Note , Earthquakes CAN cause giant waves (not all sub sea earthquakes do this). Note also that there are other causes of Tsunami.


What happens when a tsunami strikes land?

As a tsunami wave reaches land it forms a giant wave that crashes down and destroys much of the coastline. The waves of a tsunami are very powerful and can eliminate anything that is close enough to the shore. It also makes many innocent people perish for an given reason. The aftermath of a tsunami is a terrible sight. The area that was a once-built town is torn to peices. After the viloent waves hit land and the flow of water is over, there is much debris left in a large body of water that the tsunami created.


How do tsunamis cause floods?

they can cause floods because they are huge waves and if they hit shore... BOOM! that tsunami can cause a lot of damage.


What are some natural signs of an approaching tsunami?

If the tsunami is caused by an earthquake, a slight rumble can be heard, and the ground might shake. As the waves approach shore, the water near the shore will recede dramatically, following a 'sucking* sound'. A clear rumble should be heard. The fast moving waves will start to get higher as the seafloor gets shallower near the coastline. This forms a tsunami and the waves will crash onto shore and rush inland. Sometimes, warnings are given, although it is not a natural sign. *Note that 'sucking' means being sucked in, and is not a vulgarity.


What does the water look like before a tsunami strikes?

The water looks calm initially. However, if a tsunami is caused by an earthquake, a slight rumble can be heard, and the ground might shake. As the waves approach shore, the water near the shore will recede dramatically, following a 'sucking* sound'. A clear rumble should be heard. The fast moving waves will start to get higher as the seafloor gets shallower near the coastline. This forms a tsunami and the waves will crash onto shore and rush inland. *Note that 'sucking' means being sucked in, and is not a vulgarity. Also, the water levels will drop just before the tsunami hits.


Where does a tsunami happen?

A tsunami happens in an area where there is earthquake activity. Most tsunamis occur from undersea earthquakes. The large waves of the tsunami are generated by the abrupt movement of the ocean floor.


What precautionary measures before during and after tsunami?

Before a tsunami. Watch out for warning signs. Remember to run uphill when you are near the shore and you fell an earthquake, when you observe animals heading uphill or away from the shore, or when you observe the water at the beach recede into the sea.During a Tsunami. If you run uphill on the first warning signs, you will probably have enough time to reach safe high ground. If not, the only thing you can try is to climb up a tree, although there is no assurance that the water will not reach you. The best thing is to run at the first warning signs or when an evacuation announcement has been made.After a Tsunami. You will have to wait for some time to make sure there are no other waves coming after the first wave before you clear up the debris. A tsunami is a series of waves. The first wave may not be the most dangerous. The waves may come five minutes apart to an hour apart. The cycle may be marked by repeated retreating and advancing of the ocean or sea. Do not go to the shore once the first wave has gone. Expect more to come.


Why are tsunami waves in the open ocean limited in height?

Because width doesn't matter in a tsunami. The width is typically the length of the shore. It would be extremely difficult to classify a tsunami based upon height and width when the width is simply incomparable.


Where does a tsunami start?

A tsunami normally starts far off the coastline, and deep under the water. But it depends on the location of the earthquake as to how far off the tsunami begins. Most tsunami waves are extremely long. It can be deceiving to observers, who only notice the water changes as a tsunami reaches the shore.