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The same reason that the sea draws out a little bit before a normal wave - the higher water near the beach is drawn into the incoming wave as it "rolls" into the sand as it nears the shore. This water makes the wave rise above the undisturbed water.
A tsunami/tidal wave is just so much bigger so it removes more water from the shore.
What else can I help you with?
How many hours typically occur between high and low tide?
The typical time between high and low tide is about 6 hours.
What causes high tide to occur in coastal regions?
High tides in coastal regions are caused by the gravitational pull of the moon and the sun on the Earth's oceans. This gravitational force creates a bulge of water that results in high tide.
What occurs twice each day in an ocean?
High tide and low tide both usually occur twice in 24 hours.
How can tsunamis be predicted in some areas?
Tsunamis can be predicted in some areas by monitoring seismic activity using underwater sensors, analyzing data from ocean buoys, and studying historical patterns of tsunamis in the region. Early warning systems are then used to alert communities of a possible tsunami threat based on these observations.
Is the tide in or out right now?
The tide is currently out.
Why does low tide occur after the earthquake and before the tsunami?
It isn't low tide, but part of the wave. Each wave in a tsunami has two parts: a crest of high water and a trough of low water. In many cases the trough comes first, resulting in the water receding.
What happens to sea waves when an earthquake is generated?
Sometimes a tsunami can occur after an earthquake has taken place. You can know when a tsunami will occur by the way the water reacts at a beach near the ocean. The water will start to pull away from the beach faster than a tide will. When this happens, the tsunami is about to strike.
Before a tsunami the ocean appears that it is at low tide?
True... The Tsunami 'draws in' water - which makes the local ocean appear to vanish... before the wave hits the shoreline
Can you give a list of natural disasters?
flood,earthquake,drought,famine,tornadoes,hurricane,volcanic eruptions,cyclone,landslide,tsunami,tide,e.t.c
When water at the oceans edge pulls back it is?
Low or Ebb Tide. The ocean also behaves like this just before a tsunami.
What is the difference between storm surge tidal wave and tsunami?
A tsunami and a tidal wave are exactly the same. They were both terms coined long before the cause was understood. In the west, they believed that the tide caused the wave. Therefore they called it a tidal wave. Tsunami means harbor wave in Japanese because it often occurs in a harbor. After it was realized that such a wave was caused by seismic activity rather than the tide, a new term was sought. So, English adopted the word Tsunami from Japanese and a new word found it's way into the English dictionary. Tsunami is now the correct scientific term for a wave (or series of waves) caused by an earthquake, and coming onto land in an area relatively distant from the earthquake. The wave action in the ocean is often hidden below the surface when in deep water and the full effect of the Tsunami may not be realized until it strikes land.
Is a tsunami one big wave?
No, a tsunami is a series of waves caused by a sudden disturbance, such as an earthquake or underwater volcanic eruption. The waves can vary in size and may appear as a rapidly advancing tide or a series of breaking waves.
What was the cause of a tsunami?
A tsunami is typically caused by an underwater earthquake, volcanic eruption, or submarine landslide that displaces a large volume of water and creates a series of powerful waves. The sudden movement of the Earth's crust disrupts the water above, setting off a chain reaction that forms a tsunami.
How do low tide and high tide occur?
The moon.
What kind of tide will occur when the moon is at positions A C D and F?
A spring tide will occur
When do low tide and high tide occur during simultaneously?
there is a high tide nimo...
When do low tide and high tide occur simultaneously?
High tide nimo
