The massive security operation surrounding Barack Obama's inauguration showed that he will be the most protected president in the history of the United States. Photo: REUTERS.
The physics of a tsunami. Tsunamis can have wavelengths ranging from 10 to 500 km and wave periods of up to an hour. As a result of their long wavelengths, tsunamis act as shallow-water waves. A wave becomes a shallow-water wave when the wavelength is very large compared to the water depth. where g is the acceleration due to gravity (= 9.8 m/s2) and H is the depth of water.
Best Answer: Several hundred miles inland. Either that, or on a boat on the open ocean far away from land. Tsunamis are only dangerous when they hit the coast. First off, researchers have found evidence of what they think might be the largest tsunami in the last 3,300 years, and that was 300 ft.