It has been upgraded to M7.2. Looks like some of the aftershocks may line up to the NW right up to the border. If this outlines the rupture, it is likely right-lateral. The M5.1 El Centro is well northeast of this trend and so might be considered a triggered quake or far field aftershock. I wonder if it might have been left-lateral on a cross fault? Aftershocks will tell.
Chris