Seriously, where do you find this tripe? First the completely implausible "explosion defies all physical known laws to throw heavy mass 30km" story, and yes, nuclear fuel is damn heavy mass... it's what makes it actually reactive.
Then you get this wonderful piece of drivel. On the off chance you you really do care about this lets take a look at why it is an absolute crap article shall we?
at Fukushima the game is to madly pump water in, in order to stop it melting down and exploding.
Well, damn. Oh wait, there is absolutely nothing to back this up, plus "it" isn't defined. "it" could be anything from the entire complex to a workboot. This is besides the fact that if "it" melted down the reactions would stop and the decay heat would not be enough to keep the fuel from spreading and solidifying. Solid fuel that literally can't sustain a reaction ( hence why it is solid ) isn't just randomly going to explode. The only explosions possible would be steam or hydrogen gas explosions, and only during the actual melt, with little to no risk of explosion after the fuel melted and solidified. This is also ignoring the fact that to date there has never been a nuclear explosion at anything other than intentional detonations.
That said it's a bigger pain to contain and dismantle a big blob of re-solidified core material than it is to try and keep it from melting.
That explosion blasted a significant, but unknown, quantity of lethally radioactive bits and pieces of fuel element around the site (where I heard they were bulldozed into the ground - who knows?), but it also blew the top off the building, covered the fuel elements under the water with rubble and pieces of crane machinery, and no doubt twisted and melted a large proportion of the remaining spent fuel.
What a load of shit.... this kind of writing would get an F in high school science / journalism classes. It's all just a bunch of contradictions, " an unknown but significant"...."no doubt twisted and melted...".
The "journalist" "writing" this article can neither agree with himself nor bother to cite any type of sources.
I would go on further but I actually started laughing at what he said would happen if you broke a fuel assembly....