I can't believe I didn't hear this happen. Of course, I might of heard something and just chalked it up to something else.
Thank goodness they were off-line at the time and nobody lost electricity. They are saying tha there are people buried in the rubble and they are working at getting them out.
They were doing a blow down (getting all the natural gas out of the line) and then the explosion happened. They don't know if that is connected to the explosion but that is what they were doing when the explosion happened.