Hawai'i Island (IMAGE) University of Hawaii at Manoa Caption Heavy rainfall events have become more frequent over the last 50 years on the Big Island of Hawai'i. Credit University of Hawai'i - Manoa. Usage Restrictions Image can be used with appropriate caption and credit. 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.