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Magnitude 3.9 Earthquake Shakes NW Colorado

RANGELY, Colo. (CBS4) - The Earth shook on Earth Day.

A small earthquake rolled through northwestern Colorado just before noon Saturday.

Data from the U.S. Geological Survey in Golden indicates a 3.9-magnitude quake struck at 11:48 a.m. It was centered three miles W-NW of Rangely at an estimated depth of six kilometers.

Another quake occurred in the early morning hours Thursday, according to the USGS. This one, at 3;44 a.m., detected more than 22 miles outside Craig at a depth of five kilometers.

There have been no reports of damage from either.

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