I think that there may be more to come, though not necessarily at this particular location. Considering the number of Northridge aftershocks due to fault realignment, this may be, or be the cause of a fascinating set of events.
As an odd observation, somewhere (I don't remember), someone made the observation that the Utah, Nevada, and San Fernando quakes are in a nearly straight line.
Coincidence, or perhaps something else?
Ideas?

S.