The pressure has been building for more than 300 years.
A giant slab of rock sliding in from the Pacific is exerting so much pressure on the west coast of North America it is warping Vancouver Island, tilting it higher and squeezing it a few centimetres eastward every year.
One day, the strain will be released in an instant and a catastrophic earthquake will rip down the west coast from British Columbia to northern California. Geologists can’t predict when the mega-thrust quake will hit, but they say it is inevitable.
The ground shaking will be so intense older bridges and unreinforced buildings will crack and many are expected to collapse. Landslides will cut off roads, railways and millions of people could be left — for days, and in some areas, possibly weeks — without phone, cable, power and water. The coast will be hammered as a tsunami sends a wall of water racing ashore, that could wash away resorts, campgrounds, rearrange shipping channels, and sever major undersea cables. (Vancouver Sun Dec.27.20014)