then you go well above that. so maybe 7.5. >> okay. so a 9 would, as it was troublesome for japan would be troublesome for us? >> yes, except a 9 does not come from the type of faults around that reactor site. that is the other thing you have to consider. the very large earthquakes that japan saw are what are known as subduction zone earthquakes where one piece of ground goes under another. and the -- other flaults, slip faults like that, you simply don't get 9s in those. >> secretary stephen chu, appreciate your time. >> thank you. >> up next, we will go to cnn's arwa damon who just saw some of the effects of the air strikes near benghazi. firsthand. hoice. push your onstar button and you could be one of them. even if you're not an onstar customer. ♪ just push your blue button and tell the advisor