The phrase "massive tsunami" refers to a very big and powerful ocean wave that is caused by an underwater earthquake, volcanic eruption, or other events. It can cause widespread destruction and flooding when it reaches the coastline. Full definition
Looking to give boost to the revival efforts of the area, the summer art, music and food festival near a location that saw massive tsunami damage in 2011. (juxtapoz.com)
The 8.9 magnitude quake stirred up massive tsunami waves that battered coastal cities, especially along the east coast north of Tokyo. (scientificamerican.com)
The technique could be applied worldwide to create an early warning system for massive tsunamis. (sciencedaily.com)