I can't speak for any other cities but I do know that Portland is much too far in land to be hit by a tsunami. The destruction within Portland would come from t

I can't speak for any other cities but I do know that Portland is much too far in land to be hit by a tsunami. The destruction within Portland would come from the earthquake itself. Also, here are some sources that seem to coincide with what the author wrote. - http://www.oregon.gov/OMD/OEM/osspac/docs/Oregon_Resilience_Plan_Final.pdf http://www.oregon.gov/OMD/OEM/osspac/docs/Oregon_Resilience_... - http://i.imgur.com/MX7okVp.png http://i.imgur.com/MX7okVp.png - https://en.m.wikipedia.org/wiki/Cascadia_subduction_zone https://en.m.wikipedia.org/wiki/Cascadia_subduction_zone