Today Marks Anniversary Of The Great Quake Of 1700

By Beth Hyams | Jan. 26, 2010 4:34 p.m. | Updated: June 16, 2010 11:57 p.m. | Portland, OR

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On this date in 1700, a huge earthquake hit the Cascadia Subduction Zone off the coast of the Pacific Northwest.

It had a magnitude 9.0, and affected the coast from Northern California to Southern British Columbia. 

Professor Chris Goldfinger is a marine geologist at Oregon State University.  I asked him how scientists can be so sure about something that happened 310 years ago.

© 2010 OPB

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