Whether that is random (I doubt) or from lore and expectation that that point is the likely confluence? can only suppose the latter. Unclear if the epicenter Must-be in the overlap portion of their common azimuth. These two faults don't overlap for much of their extent, so there's a clue.
Separate roulette re. either one, solo. (Throw in San Andreas' count-down timer for further tragicomic relief: beats any manufactured-Game.)

If.. in-time before the event: cheap warning devices proliferate--like current Weather-emergency VHF boxes--I can be outta this cottage at-the-speed of-Moi (shooing a cat or two if inside: that's Easy.) Similarly, should the numbers crunch such that Rodgers Creek's rupture-probability gets a huge boost? Well ... I have a fondness for science; it's fed me since sentience.

Anyway, depending on New-numbers, I might well abandon my creekside patch to the next wannabe-Gentry, take the mo-nay, abandon 97% of mere-Stuff and migrate. Digs are fungible; wherever you go--there You are. (RV types grok this, right?)