by 
Farino
ANSWERS: 4
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If the polar ice caps of the world melted, the oceans would rise by about 200ft. In other words, the planet would not be completely flooded. But the low-lying coastal areas like Florida, Louisiana and almost the entire country of India would be covered in water. This is very unlikely, though, since the ice caps are about -37 degrees celsius and will probably not COMPLETELY melt anytime in the near future.
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Yes, If the water level/sea level rises just two feet and an undersea earthquake (magnitude 9 or above) created massive tidal waves much of the surface of the earth could be destroyed in a matter of hours.
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The idea of the whole earth being flooded is not farfetched. To some extent the earth is still flooded. Seventy percent of it is covered by water and only 30 percent is dry land. Moreover, 75 percent of the earth's fresh water is locked up in glaciers and polar ice caps.(ref: http://ga.water.usgs.gov/edu/earthglacier.html)(Well, not for long considering the effects of Global Warming) If all this ice were to melt, the sea level would rise much higher. Cities like New York and Tokyo would disappear. Further, The New Encyclopaedia Britannica says: "The average depth of all the seas has been estimated at 3,790 metres (12,430 feet), a figure considerably larger than that of the average elevation of the land above the sea level, which is 840 metres (2,760 feet). If the average depth is multiplied by its respective surface area, the volume of the World Ocean is 11 times the volume of the land above sea level." So, if everything were leveled out - if the mountains were flattened and the deep sea basins filled in - the sea would cover the whole earth to a depth of thousands of meters.
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I would like to see someone do the math and scale it down to say the size of a swimming pool. How much water would represent all the frozen water represent? 5 gallons 100 gallons? And dont forget the floating ice takes up far more space from water displacement than it actually contains in liquid water. It would be a very complex equation.
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