It could anytime in the next few years,,, again and again and again
BLUF - there is nothing new here folks.
In 1968 there was a fictional best seller out “The Last Days of the Late Great State of California” by Curt Gentry that took a look at the impact of the San Andres fault letting go. Read it in the early 1970s because I was stationed in Rancho Cordova at the time.
The economic impact, in pre-silicon valley terms, was massive. I wouldn’t want to predict the economic impact 45 years later. Curt also addressed the probability of price gouging - the seven sisters decided that they would restrict the rise in gas prices to a maximum of a dollar a gallon until public outcry forced them to back off.
If you want to see what the impact could be buy the book, its available on eBay starting around $ 10.00.