80% of occurring tsunami in the world is concentrated in the Circum-Pacific Belt.The leading countries researching the tsunami are Japan, U.S, and Russia. The tsunami is originally a Japanese word term that means a high tidal wave*. The name was used by Japanese immigrants during a tidal wave caused by the 1946 Aleutian Islands earthquake** (tsunami) hit in Hiro***, Hawaii and it became an international word, especially an academic word, ”Tsunami”. The origin of an international conference about Tsunami has a tsunami session led by the IUGG (The International Union of Geodesy and Geophysics) as an additional event. The”Tsunami” became public after the 2004 Indian Ocean Tsunami disaster.
*The word tsunami (pronounced is composed of the Japanese words “Tsu” (which means harbor) and “Nami” (which means “wave”)(ITIC)
**The 1946 Aleutian Islands earthquake