I am in a low risk area as well, but there was a warning that went out on CBC radio for one, if you happened to be listening. The high risk areas such as Tofino and Ucluelet reportedly had sirens blaring on their beaches.
Ucluelet, Tofino, Port Alberni, and other west coast towns/villages have alarm systems that blare throughout the towns. The evacuations there are very serious.
In 1964 a Tsunami hit Port Alberni and destroyed much of the town and killed a whole bunch of people.