The 1946 Vancouver Island earthquake struck Vancouver Island on the coast of British Columbia, Canada, on June 23 at 10:15 a.m. with a magnitude estimated at 7.0 Ms and 7.5 Mw. The main shock epicenter occurred in the Forbidden Plateau area northwest of Courtenay. 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. This is one of the most damaging earthquakes in the history of British Columbia, but damage was restricted because there were no heavily populated areas near the epicentre, where severe shaking occurred.
Canada's largest recorded onshore earthquake struck Vancouver Island, British Columbia.
On June 23, in the year 1946, Canada's largest recorded onshore earthquake struck Vancouver Island, British Columbia. This event is recorded as a Selected Events event in the history of June 23, one of 406 recorded events on this date across all of history.
Key Facts
- This event took place on June 23, 1946 (AD era).
- It is categorised as a Selected Events event in recorded history.
- Referenced in 3 Wikipedia articles.
- Wikipedia source last updated on 21 January 2026.
On This Date in History 406
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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