Mount Rinjani (IMAGE) University of Cambridge Caption Mount Rinjani in Indonesia, which had one of the largest eruptions in the last millennium in 1257 (magnitude 7). Credit Dr Mike Cassidy Usage Restrictions Please credit 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.