The 1946 Vancouver Island earthquake was a 7.3 magnitude earthquake that struck at 10:15 a.m. on Sunday , June 23 , 1946 . The main shock epicenter occurred in the Forbidden Plateau area north of Port Alberni . While most of the large earthquakes in the Vancouver area occur at tectonic plate boundaries , the 1946 Vancouver Island earthquake was a crustal event . Shaking was felt from Portland , Oregon to Prince Rupert , British Columbia . The earthquake is remembered as one of the most damaging earthquakes in the history of British Columbia
1946 Vancouver Island earthquake
1946 Vancouver Island earthquake
Port Alberni