set of pumps that were supposed to run on diesel, they got flooded and they went down. so the real issues are, number one, can they get some sort of electricity to get the pumps going again? if they get the pum turnpikes going again, are they going to run into any other technical issues? they've evacuated people once, twice. there is some concern about that. we'll know in the next 24 hours. this is the critical period. >> jill walsh, thank you. back to frank vernon for one last question, what are the chances of subsidance of the land mass slipping into the sea along the fault? >> it's essentially none. we will have tech tonic motion that moves in slow terms but nothing in the scale of our lifetimes. >> so i can rest assure all my relatives in northern california? >> yep, you can even buy property there. >> that's good news for us tonight. thank you so much, frank vernon, nbc news chief white house