Paleotsunami Deposit in Hawai'i (IMAGE) University of Hawaii at Manoa Caption The only well-documented paleotsunami deposit in Hawai'i from the 16th century is on Kaua`i. The Makauwahi sinkhole, on the side of a hardened sand dune, is viewed toward the southeast from an apparent altitude of 342 m. Inset photos show two of the wall edges, indicating the edges of the sinkhole. The east wall (left) is 7.2 m above mean sea level, and about 100 m from the ocean. Note for scale the people in the right image. Credit Photo credits: R. Butler (left), Gerard Fryer (right), GoogleMaps (background). Figure from Butler et al., 2014. Usage Restrictions Image may 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.