How does size of earth's movement affect damage by a tsunami?
965293
The above have said it correctly!
9692
An earthquake under a body of water often lifts or collapses the land under the water.  This sudden move of a large body of land displaces the water above it, creating a massive wave.  The wave is unlike waves you see at the beach, which are caused by wind.  This wave is very long and can travel at hundreds of miles per hour.  Once the wave reaches shallow water, the wave is compressed, lifting the water very high, causeing a tsunami, or tidal wave.
40541
It can! Actually Earth's rotation is slowing by about 2.2 seconds every 100,000 years. The massive earthquake that recently caused the disastrous tsunamis around the Indian Ocean slowed Earth's rotation by a few micro-seconds. Don't worry, though, long before Earth stops spinning, our Sun will have left its current stable condition and engulfed the planet--in about 4.5-billion years.
709333
The moon's gravity causes tides, which is not quite the same thing. A "tidal wave," or tsunami, is caused by an earthquake.\nBecause distance is an central factor in gravity, the part of the global ocean that is closest to the moon at any given moment will bulge outward ever so slightly toward the moon. On the opposite side of the earth, the water farthest away from the moon will bulge in the opposite direction, being less influenced by that same gravity. Those two regions will then experience high tide. Halfway between them will be the two areas of low tide.\nAs the earth rotates, each part of the surface eventually passes through each of these gravitational regions, thus experiencing two high tides and two low tides each day.\nThe sun has some influence on tides as well, but its distance from the earth lessens its impact. However, when the sun, moon and earth are in alignment, the combined forces result in unusually high and low tidal patterns.
204020
I believe an ocean tsunami have been more destructive in Earth's history.  http://en.wikipedia.org/wiki/Tsunami
540657
The desity of water makes it more suseptable to the pull of the moon's gravitation. Depening on it's course around the earth throughout the year the tides follow in it's wake. Not just hight tide and low tide are effected byt this but swells and tsunamis. The tides are also effected by plate techtonics but science has yet to decide whether the causation is more that plate tectonics are effected by the same gravitational pull as the ocean tides or my subterrainian thermo tides.
60681
If tectonic plates move underwater it is possible to get a Tsunami (Means harbour Wave in Japanese) anywhere assuming the conditions are right.\nGenerally Tectonic plate shifts have to occur in the up/down motion (Regional uplift or subsidence) to cause a Tsunami. Once the underwater wave hits shallow water it will raise the sealevel due to the force of the underwater wave causing a Tsunami.\n\nThe West coast of the US would be at most risk from a Tsunami due to the Pacific rim being a hot bed of Tectonic  plate activity, in fact they already have a Pacific Tsunami early warning system (USGS).\n\nI am no expert but have seen countless documentaries and read books on the subject.
72069
Any size. Some tsunami are like 4 feet tall. Some are 16-feet tall.
1099932
Probably the Asian tsunami
726149
The word Tsunami is Japanese and they been hit a number of times over their history. As for what would happen if hit today, it would depend on where got hit. If not one of the industrial or commercial centers such as Tokyo, etc.... their would be loss of life and a number of ill effects but Japan would survive. If it his one of these major areas.... their would be a major disruption of trade and the economy could become unstable, this would also affect the stock markets not only in Japan but everywhere else in the world, since Japanese goods are exported everywhere including the United States.
628507
lol. there is absolutley no way. Tsunamis are usually triggered by earthquakes. and as of now or possibly ever, we wont be able to predict earthquakes. Tsunamis arent diseases you care reduce the risk of by washing your hands or eating apples. it is a force of nature. not even less global warming like with hurricanes can cure tsunamis. NO POSSIBLE WAY. just move away from the coast is your best shot if you are very araid. but they rarely happen.
655585
No,\nEarthquakes are caused by the movement of the tectonic plates making up the Earth's crust.  As they slide across eachother, they can cause Earthquakes, this is why areas which are "Earthquake prone" tend to lie along major fault lines.\n\nThe gravitational effects of other plants upon Earth are minimum at most.  Although according to Newton's law of universal gravitation, anything with mass in the universe is gravitationally attracted to anything else with mass in the universe, this attraction diminishes with the square of the distance.  Although massive by everyday standards, the other plants are just too small and too far away to have any significant impact on the Earth.
217931
earthquakes, tsunamis, ocean floor depressions,polar seperations, further displacement of the earth's surface.
3434
A tsunami (pronounced soo-nah-mee or tsoo-nah-mee [ IPA /suˈnɑːmi/ or /tsuˈnɑːmi/]) is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale. Earthquakes, landslides, volcanic eruptions and large meteorite impacts all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating.\n\nThe term tsunami comes from the Japanese language meaning harbour ("tsu", 津) and wave ("nami", 波 or 浪). Although in Japanese tsunami is used for both the singular and plural, in English tsunamis is well-established as the plural. The term was created by fishermen who returned to port to find the area surrounding the harbour devastated, although they had not been aware of any wave in the open water. A tsunami is not a sub-surface event in the deep ocean; it simply has a much smaller amplitude (wave heights) offshore, and a very long wavelength (often hundreds of kilometres long), which is why they generally pass unnoticed at sea, forming only a passing "hump" in the ocean.\n\nTsunamis have been historically referred to as tidal waves because as they approach land they take on the characteristics of a violent onrushing tide rather than the sort of cresting waves that are formed by wind action upon the ocean (with which people are more familiar). However, since they are not actually related to tides the term is considered misleading and its usage is discouraged by oceanographers.\n\nFor more information on a tsunami, visit:\nhttp://en.wikipedia.org/wiki/Tsunami
192044
Very little sadly.  Besides not building coastal communities there is very little we can do to avoid the damages caused by such events.  Some tsunami walls will help, but at a certain class of typhoon even those won't help.
387651
Tsunamis fall into a wave physics category called long waves, also known as shallow water waves.  This type of wave is characterized by a wavelength that is much larger than the water depth.  In the case of tsunamis, their wavelength might be 500 km versus, for example, a 4 km ocean depth, so even though 4 km is "deep", the waves are technically "shallow water waves".\n\nAccording to the sources I have included below, the velocity of shallow water waves does in fact vary according to the water depth.  According to the NOAA site, "The speed of a shallow-water wave is equal to the square root of the product of the acceleration of gravity (32ft/sec/sec or 980cm/sec/sec) and the depth of the water."  Therefore, the longer the wavelength, the faster the wave.  Since tsunamis have very large wavelengths, their speed is large.\n\nThe ripples on a pond that we're all so familiar with are technically short waves, or deep water waves, because the wavelength of the waves is not substantially larger than the depth of the water.  In this situation, the wave velocity is relatively constant for the wavelengths we typically see on the surface of a pond or bathtub, but according to the sources below, the wave speed does in fact vary according to the wavelength of the waves.\n\nYou are correct that the speed of a wave is constant in a given medium.  However, as you suspected after you lost the bet, tsunamis and ripples are effectively traveling through different media because of the ratio of their wavelengths to the water depth.
73259
I prefer motion. but if its too small then no matter the size of the ocean waves you had better compensate for the size.  I also must say that girth is much more important then length.