As a kid in that region (Portland, OR), we practiced earthquake drills in school and such, and we had a few smaller ones (I remember at least 1996 and 2001), so

As a kid in that region (Portland, OR), we practiced earthquake drills in school and such, and we had a few smaller ones (I remember at least 1996 and 2001), so people who've been there long enough are at least aware of the possibility. And local building codes are written with the possibility in mind (earthquake strapping on foundations, etc). I do wonder, with all the population influx to the PNW lately, how well prepared the more recent arrivals would be...