500-Year-Old Traces of Monster Hawaii Tsunami Discovered
Tuesday, October 21, 2014 - 07:00
in Earth & Climate
A powerful earthquake in Alaska sent towering waves up to 30 feet (9 meters) tall crashing down on Hawaii about 500 years ago, leaving behind fragments of coral, shells and coarse beach sand in a sinkhole located on the island of Kauai, research shows.