(IMAGE) Seismological Society of America Caption Mangrove pond at East Bajura, Puerto Rico, in 2008. Researcher is holding a gouge core, which is used to explore the subsurface. Credit Bruce Jaffe Usage Restrictions none License Original 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.