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Seismic sea wave becomes more dangerous as it gets closer to shore and can be very destructive?
Tsunami
Where in Japan was first hit by the Tsunami?
The first recorded tsunami that hit Japan occurred off the shore of the Kii Peninsula, Nankaido, Shikoku, Kii, and Awaji region. It has been estimated to be a magnitude 8.4- Nancy-
Why do most oceanic quakes not form a tsunami?
Well first of all earthquakes form tsunami's because the ground is shaking and being broken up which makes the water uneven and cause the water to move and the more closer it gets to shore the more shallow the water is their and will cause a tsunami.The main reason is that the underwater earthquakes are not strong enough to generate a tsunami.Additional answerWhen one tectonic plate slides over the top of another suddenly the sea floor rises abruptly, pushing all the water directly above it upwards. This causes the tsunami. But not all plate movements are large enough to cause a tsunami.
Earthquakes are frequent in California US so is California prepared on their beaches for Tsunamis?
There is a system of tidal buoys that are designed to detect tsunamis before they hit the shore, but a tsunami caused by an earthquake along the coast would hit the beach before any alarm could be given.
What effect does slowing down in speed have on the height of tsunami waves close to shore?
The effect of the slowing of a tsunami close to shore is that the wave increases in height. It becomes a lot taller! The trick to getting this in perspective is in understanding that as the wave travels across the water, it stretches out. As it is now longer while en route across the open ocean, it isn't as tall. In fact, it is possible to be on a ship in the middle of a deep ocean as a tsunami passes and not really notice anything alarming because the wave is so elongated. As it reaches shore, the leading edge of the wave begins to slow up in the shallower water. This results in a "bunching up" of the water and the wave can then rise to a frightening - and destructive - height just as it comes ashore. To expand a little: Ordinary ocean waves are movements only of the top layers of water, and if you were diving a few meters below the surface, you would not feel the effects of even rather strong waves. Tsunamis, however, involve the movement of truly huge amounts of water amounting to the entire "column" of water from the ocean floor to the surface. This is another way to see why the above explanation increases tsunami height. We're not talking about bigger and bigger "surfing" waves, but a huge volume of water crowding up on itself as it moves over the rising ocean floor.
Will the water along a shoreline flow towards the sea just before a tsunami crashes on shore?
Yes, the water along a shoreline may recede just before a tsunami strikes, which is known as a "drawback". This phenomenon is due to the leading edge of the tsunami wave pulling water away from the shore as it approaches.
Can a tsunami bring sharks on shore?
Yes. All manners of marine animals can be brought on shore by a tsunami. Note, though that a shark brought on shore by a tsunami would be stressed enough that it would not be interested in eating.
Is a tsunami highest when its in the middle of the ocean?
No. A tsunami is highest in the shallow water near shore.
What happens to a shore when a tsunami hits?
It disappears until the tsunami dies away. I don't know what happens to a tsunami but this is what I think.
How does the speed of tsunami wave change as it approaches the shore?
The wave would slow down as it approaches the shore.
How does the speed of a tsunami wave change as it approaches the shore?
As a tsunami wave approaches the shore, its speed decreases due to the wave energy being compressed into a smaller space. This leads to an increase in wave height and impact force when the tsunami hits the coastline.
Why did the Japan tsunami happen?
The 2011 Japan tsunami was triggered by a massive undersea earthquake with a magnitude of 9.0, causing a sudden uplift of the ocean floor. This abrupt movement displaced a large volume of water, resulting in the tsunami waves that devastated the coastline of Japan.
What can be done during a tsunami to minimise the damage?
Not live near A shore.
What happens to tsunami's as they move toward shore?
Their wave size increases.
Safety precaution in tsunami?
When a Tsunami occurs dig big pits near the sea shore as the speed and the quantity of water will get reduced.
A sentence for recede?
When a tsunami occurs, waters near the shore begin to recede.
Does marine life get stranded on land after a tsunami?
It gets washed up shore.
