Pore Pressure Change (IMAGE) Southern Methodist University Caption Map view of the SMU predicted pore pressure change in the basement at about 4.4 kilometers depth annually during March from 2009 to 2014. Black dots are cumulative earthquakes at the time of the predicted pore pressure change. 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.