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Approximately when did the last magnitude 9 earthquake occur in the Pacific Northwest?

Sagot :

Explanation:

the last huge earthquake The last really big one to hit the Pacific Northwest coast struck around 9:00 p.m. on January 26, 1700 More than 321 years ago. Called Cascadia the magnitude 9.0 quake caused the entire Pacific Northwest coastline to suddenly drop 3 to 6 feet that send a 33 feet high tsunami across the ocean to Japan.