TRINIDAD, Colo. (CBS4) – An earthquake shook southern Colorado late Wednesday night.

According to the U.S. Geological Survey office in Golden, the 3.9 magnitude quake hit 23 miles west of Trinidad at 11:14 p.m. It was originally measured at 4.2 but was revised by the USGS a few hours later.

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(credit: USGS website)

(credit: USGS website)

There is no word of damage or injuries in the area.

LINK: USGS earthquake report

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Southern Colorado resident Monika Maes wrote on Facebook that she slept through the earthquake.

This is the first earthquake with a magnitude of 4 or higher reported in Colorado this year. An earthquake was reported in El Paso County in southern Colorado in mid-January, but it turned out to be a false report.

In 2011 an earthquake that was also near Trinidad caused damage to homes and businesses and triggered a rock slide. It was measured at magnitude 5.3 and was the largest in Colorado since the 1960s. See CBS4’s archive report below:

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A string of approximately 200 small earthquakes took place in 2013 and 2014 in Weld County, with a wastewater injection well being blamed as a cause.