X-Shaped Wave (IMAGE) University of Colorado at Boulder Caption Understanding the interactions of X- and Y-shaped ocean waves may help explain why some tsunamis are so devastating, say two CU-Boulder mathematicians. Credit University of Colorado 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.