Persaud-LA Basin (IMAGE) Seismological Society of America Caption LSU's Patricia Persaud (left) and a Cal Tech undergraduate student mark a newly-buried geophone node in a Los Angeles yard. Credit Patricia Persaud Usage Restrictions Please use credit information 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.