Tsunami: a large wave in the ocean, usually caused by an undersea earthquake, a volcanic eruption, or coastal landslide. A tsunami can travel hundreds of miles over the open sea and cause extensive damage when it encounters land. Tsunamis are also called "tidal waves."
The word tsunami comes from the Japanese, meaning tsu (harbor) and nami (waves). The word tsunami was adopted for common use in 1897.
Hawaiian Translation: Kai ‘e‘e
In April 1946, a powerful tsunami hit Hilo, Hawai‘i. This disaster prompted the establishment of tsunami warning systems.
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