It is highly improbable that the damaged reactors at Japan's Fukushima I Nuclear Power Plant will be rebuilt. Physical damage is (probably) extensive, and there will be significant radiation hazards. It will probably be too dangerous to do anything but "entomb" what is left for an indefinite period to allow radiation levels to drop and prevent further spread of radioactive materials.
The tsunami destroyed many buildings and damaged nuclear reactors
mostly ocean currents carry the contamination
An earthquake hit Tokyo and 3 or 4 nuclear reactors went off and there was a tsunami.
If you are talking about the Nuclear Reactors in Japan, they were damaged because when they lost power, the water pumps used to cool them stopped, and all of the nuclear material overheated.
No, Hawaii is currently not in danger of radiation from the incidents involving the nuclear reactors in Japan.
Yes. That's how the diesel generators were damaged at Fukushima Daiichi, leading to the current crises there. Note that the reactors themselves were not touched by the tsunami because of the containment structures in place.
Before the Fukushima Daiichi Disaster, there were 54 operational nuclear reactors in Japan. Three of those melted down, and one had problems that rendered it inoperable. The government has decided the other two reactors at Fukushima Daiichi cannot be restarted. Also, as other reactors have been shut down for maintenance or refueling, they have not been restarted, with the result that now, in early December 2011, only eight Japanese reactors remain in operation.
the cause of the melt down of the reactors in japan is the water that is needed to cool down the reactors
During the Fukushima Daiichi nuclear disaster in Japan, three of the reactors experienced hydrogen explosions. These explosions occurred in Reactors 1, 3, and 4.
It is impossible to build ANYTHING in japan that is not on a geological fault. That is how the islands formed.
lots
The pumps that were supposed to keep the nuclear reactors cool failed to work because the earthquake broke them