For the climate issue try the UK then or somewhere in France. Moderate winters and summers in the UK. Within the US I'm sure there is somewhere with modest risks although perhaps many of those places are too cold for you in the winter.

I'm not saying that you should move and it may be that the earthquakes of SF [replace hazard and location as appropriate] are a reasonable risk for other advantages and can be managed sufficiently with construction techniques. However, not every place on the planet is at equal risk of natural disasters.