Marengo Cave 2015 (IMAGE) Seismological Society of America Caption Marengo Cave, a show cave in southern Indiana, displays numerous stalactites that have fallen in a preferred direction. Researchers are studying the stalactites for signs they were felled by seismic activity. Flowstone has "cemented" the stalactites in place. Credit S.V. Panno 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.