Quote:
Originally Posted by RIROCKHOUND
It actually displaces the water, which generates the energy for the tsunami. If you imaging the length of the fault, x the displacement (8ft) all of the displaced water does not go into the crust.
it is a subduction zone, and water circulates down into the earth (crust and mantle) as the ocean floor is subducted under Japan, but it is mostly in the pore spaces of the sediment on the ocean floor and in the cracks in the underlying rocks..
but.. caveat.. I'm a glacial/coastal guy.. not a seismologist!
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So is the speed of the tsunami, english meaning is death wave, like a wave going thr speed of sound minus the friction caused by the water itself.