The “Big One” has been predicted with some certainty going back to early 1970s, as far as I can remember.
Good read. This is not the San Andreas fault which is only capable of an 8 or so. Rather it’s the Cascadia subduction zone with is capable of a 9+ and threatens the pacific northwest.
http://www.newyorker.com/magazine/2015/07/20/the-really-big-one
Yes, it will most likely happen one day in the future. Safe bet, wouldn’t you agree?
In 1992 the Landers earthquake struck along the San Andreas Fault with a magnitude somewhere around 7.5. If that wasn't "the big one" then what is?
Someday there might be a bigger earthquake but I'm not holding my breath for it to happen. I am though prepared for another Landers type shaker.