Scientists defining Cascadia Subduction Zone

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Updated: 9/03/2013 3:05 pm

GRANTS PASS, Ore. (AP) — Scientists are just back from a monthlong research cruise in the Pacific Ocean off Washington state, where they were trying to find the stickiest point on a section of the Cascadia Subduction Zone, the huge undersea fault that breaks loose every few hundred years and generates a massive tsunami and earthquake.

Paul Johnson, a professor of geophysics at the University of Washington, was one of the principal scientists. He says it will be some time before the data from deep-sea measurements of heat and gas emissions is fully analyzed.

But preliminary indications are the strongest upheaval will be farther out to sea than previously thought. That is important because the farther out to sea that upheaval occurs, the bigger the tsunami, and the less damage on land from the earthquake.

 

©2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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