An earthquake less than a mile south of the Colorado-New Mexico state line near Interstate 25 on Thursday morning was felt as far north as Pueblo, according to the United States Geological Survey. The 4.0-magnitude earthquake is the strongest to impact Colorado since 2023, when two earthquakes registered 4.0 and 4.1 on the Richter scale in southern Colorado. This year, seven earthquakes have occurred within a few miles of Thursday’s quake, according to USGS data. The only one that has rumbled outside of that region in southeast Colorado was a 2.6-magnitude earthquake in southern Pueblo County in early January. USGS Seismologist William Yeck told The Gazette in 2024 that 4.0-magnitude earthquakes are “pretty small” though still surprising for the Centennial State. Earthquakes in Colorado occur along the thousands of fault lines riddled throughout the state, although only about 90 are potentially active, Yeck said.…