Destructive earthquake expected in the Pacific Northwest along the Cascadia Subduction Zone

In the Pacific Northwest, communities are debating how to save lives from a tsunami triggered by a massive earthquake that’s overdue.

During their regular earthquake and tsunami drills, students at an elementary school in Westport, Washington, practice going to the top floor. But with the Pacific Ocean just a few thousand feet away, scientists say these drills might be futile — because the inevitable tsunami could be higher than the school.

Is a massive earthquake in Pacific Northwest “overdue”?

“Scientists tell us it will happen at some point,” school superintendent Paula Akerlund tells CBS News. “It’s very unpredictable as to when. So we, we need to be prepared.

Like the Japanese earthquake and tsunamis in 2011 that killed nearly 16,000 people, seismologists say there is an impending disaster coming this way.

Seventy miles off America’s Pacific Northwest — from Northern California To Vancouver Island — is the fault line known as the Cascadia Subduction Zone, where the Oceanic Plate is slowly being forced beneath the North American Plate.

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The Cascadia Subduction Zone

“It buckles upward and it gets pushed backward like a spring until eventually, after a few hundred years, it just has to let go,” Oregon State earthquake geologist Chris Goldfinger explains.

For 25 years, Goldfinger has warned of the possibility of disaster. He and other scientists have been collecting core samples of sediment from the ocean floor.

They’ve discovered that major earthquakes happen here an average of every 240 years. The last major Cascadia earthquake was 315 years ago.

The “Big One,” scientists say, is overdue.

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The Cascadia Subduction Zone Big One is overdue.

“There’s nothing that compares to a magnitude 9 earthquake that North America has experienced in human history,” Goldfinger says.

Similar to what happened in Japan, FEMA estimates in that case, a tsunami could hit some areas within 15 minutes.

 

So yes, just be prepared…

 

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