Aftershock Probabilities News Today

>> reporter: i have a question about the conjugate system here, the fact that these two are conjoined, does that add any energy or is it just happenstance that these two are connected? >> as far as we can tell, the better picture we get as we put in more the more often we see multiple faults. we think they probably -- most of them are like this. >> the way we would describe that as the earthquakes were a lot simpler when we had less data. [laughter] >> we are back in the 5% zone since this hit, ...