I'm pretty well versed with earthquake preparation, with what to do during the quake, and with the aftermath.
I haven't specifically prepared for a quake here. I always have extra water on hand, because I have to have it anyway. In case of power failure, I have to be able to flush and to water the horses. The water comes from the well, pumped up by electricity, which is the only utility to shut down. I also have plenty of flashlights, lanterns, and candles in case of power outages, and generally keep some canned and dried food on hand. I could manage for a week; by the end of that week, I'd be walking my horses a couple of miles to the river to drink.
The longest outage we've had in the 8 years I've lived here was for about 48 hours. It was fine, and since it was summer, the long days helped deal with the absolute dark we experience without electricity; I was mostly asleep when it was really dark. In the winter, it would be harder.
I've never thought Oregon was "safe" as far as earthquakes go; I live in sight of the 3 sisters. I do enjoy, though, not expecting earthquakes on a regular basis.