They've found a "partial defect" in Reactor 2's container, so its sounding like theres a leak from the container into the metal container building and they highly suspect partial meltdown in the core, they are getting water in and dropped pressure, but the water level doesn't appear to be rising.
They are saying theres been no rise in radiation outside the container so the outer container appears not to have a leak. It is starting to sound like that core might be utterly screwed, but the building is pretty much designed for the reactor, if it breaks/leaks, to contain, cool and keep everything safe inside without getting out.
That vid was up a while ago, but yes, its amazing the way what I assume is tarmac, is just folding and moving like a wave, the water being "pumped" up is just, freaky.