Escape on Foot Because Roads Will Liquefy
Scientists have outlined their alarmingly unhelpful tips on how to survive the earthquake that will hit the Pacific Northwest.
The killer quake along Cascadia, a fault line which runs from Cape Mendocino, California, to Vancouver Island, Canada, is 72 years overdue, according to peer-reviewed studies.
The ‘Big One’ will hit when Juan de Fuca, a 700-mile chunk of the Pacific Ocean, slides under Canada and America, causing the entire coastal region to sink at least six feet.
When – not if – it arrives, it is unlikely the people of coastal Oregon, Washington and California will be able to escape.
But if they want to try, there are a few tips they should keep in mind.
Devastation: Experts say citizens have 20 minutes to run when a tsunami of around 9.0 on the Richter scale will hit the Pacific Northwest when the Juan de Fuca plate, a 700-mile chunk of ocean, slips under the region
Run, don’t drive, to higher ground, says Kevin Cupples, the city planner for the town of Seaside, Oregon, in an interview with the New Yorker.
The force of the quake will cause liquefaction, when solid ground acts like liquid, across vast swathes of the porous region.
In the areas that aren’t ‘liquefied’, the highways will likely be crumpled by landslides, with 30,000 avalanches set to hit Seattle alone.
Citizens will have a 20-minute interval to climb to the highest altitude possible before the full force of the tsunami hits, scientists predict.
Their alert will be when dogs start barking.
The first sign the quake is coming will be a set of compressional waves, only audible by dogs. Then there will be the quake, then 20 minutes later, the tsunami.
Geographers estimate that many could survive just by walking – however, they need to be going at least 3.5mph.
If everyone ups their average speed from 2.5mph to 3.5mph, the death toll drops to 15,970. About 70 per cent of them would be in Washington, nearly 30 per cent in Oregon and only 4 per cent in California.
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