Washington monument may be sinking - WAOW - Newsline 9, Wausau News, Weather, Sports

Washington monument may be sinking

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(CNN)--The tallest structure in the nation's capital appears to be sinking.

That's according to new observations by the National Geodetic Survey.

Surveyors say they've noticed a two millimeter difference at several points around the monument.

They believe it's the result of natural settling and last year's earthquake.

Since its completion in 1884, data shows the monument has sunk nearly 2 inches.

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