I live in Northern California for the past 25 years (that's a quarter of a century). In that entire time, I have not seen a single earthquake that required me to be prepared for (I still do have an emergency kit and we're all prepared). In fact earthquakes of similar sizes happen all over the US.
Instead, the following things have far more direct impact on me and my family: driving in traffic, walking on the street, electronics fires in my garage, the food I eat, the amount of exercise I get. I'm sure there will be a Big One at some point in the next 30 years, but in terms of risk, the basic prepping procedures handle a wider range of common problems than earthquakes.
Instead, the following things have far more direct impact on me and my family: driving in traffic, walking on the street, electronics fires in my garage, the food I eat, the amount of exercise I get. I'm sure there will be a Big One at some point in the next 30 years, but in terms of risk, the basic prepping procedures handle a wider range of common problems than earthquakes.