Yes, and much like Yountville we don't really know what the San Andreas is doing down here - the popular theory is that its moving east and making a new path for itself - so in this case, its really hard to determine probability of which fault is going to go... A great example is the Hector Mine quake - on a fault that was 'inactive' - hadn't ruptured for at least 10,000 years - another shining example of the obstacles for quake prediction.

Canie