Irving, Texas (CNN) Jim and Gail Wells have lived in the upscale Las Colinas area of Irving, Texas, for 14 years. Nestled between Dallas and Fort Worth, they love their quaint neighborhood for its custom homes amid rolling hills and large trees. One of the neighborhood’s newer features is a spate of seismic activity. According to the U.S. Geological Survey, the Dallas area has suffered almost 40 small earthquakes (magnitude 2.0 or higher) since the beginning of this year, the latest a magnitude-2.7 quake near Farmers Branch on Saturday. Many of the epicenters were recorded in Farmers Branch and Irving, with a couple to the south in Venus.