DFW Quakes Study Area (IMAGE) Southern Methodist University Caption Study area for the DFW Airport earthquake sequence. Yellow triangles are the 2008-2009 SMU operated stations. Blue asterisks are the earthquakes reported by the 2013-2016 SMU earthquake catalog, indicating continued seismicity at the DFW Airport -- its boundaries indicated by the dotted blue-green line. Solid black line is the DFW Airport fault. (Credit: SMU) Credit SMU Usage Restrictions Please credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.