People in the lower mainland of B.C. and southern Van. Isl. felt that Orcas Isl. shake on Sunday.
I don't think we'll see any accurate earthquake predictions for some time, but geologists are working on it.
I find it pretty interesting, like this study of evidence of big PNW shakes in the past:
www.nbcnews.com
As for being prepared for a big one, my impression is almost nobody is, really. I attended an earthquake prepardness workshop about 40 years ago. At the end, the presenter told us, if we remember only one thing, it's to keep a crowbar under your bed. That might be useful in getting out of your damaged house, because a shake will rack the framing of your doors and window, so they could be jammed closed. I did that when I got home that evening, along with workboots, gloves, a hardhat, and a flashlight.
After the Great Tohoku earthquake, tsunami, and nuke plant meltdown of March 11, 2011 (Japan's "3/11"), my Japanese friend told me if there's a big one, and you're close to the ocean, immediately run to higher ground. Their big one pushed the ocean up something like 30 meters in spots. Remember the horrific videos on the news? Tsunami can be just as bad in "inside" waters as on the exposed coasts.