Cleveland Volcano (IMAGE) Seismological Society of America Caption Steam and gas plume rising from Alaska's Cleveland Volcano in 2014. Credit John Lyons/ Alaska Volcanic Observatory/ USGS Usage Restrictions Please include full 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.