Earthquake Reconnaissance (IMAGE) Iowa State University Caption Iowa State University's Sri Sritharan studied the damage caused by the 6.3 magnitude earthquake that hit Christchurch, New Zealand, in February. Credit Photos by Sri Sritharan/Iowa State University Usage Restrictions None 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.