Start and Damage "PTWC" has warned countries of the Pacific Ocean region of the danger of the killer wave for 40 years or more. About 230,000 people died in the Indian Ocean tsunami in 2004. Intergovernmental Oceanographic Commission in United States's To make a tsunami early-warning system of the Indian Ocean, the effort was started.
Prior state The organization to receive the message from an international warning center had not existed before 2004. Moreover, the monitoring hardware of the surface of the sea did not exist in a lot of countries including the Indian Ocean coastal country.
Development The organization that would perceive the domestic warning center and the tsunami in five years and sent warning was made. However, a lot of preparations were necessary to adjust it.
Mechanism of system When the earthquake occurs, various information is sent to the Meteorological Agency (JMA) in Hawaii and Tokyo. It is transmitted there to Pacific Tsunami Warning Center (PTWC).
Sharing of intelligence Australia and the warning information on the tsunami is shared in countries such as India, Indonesia, Malaysia, and Bangkok.
Two centers in Hawaii and Japan They receive information on the earthquake and information on the tsunami sensor. Two centers forecast the time of arrival of the wave of the tsunami. And, warning is transmitted to a lot of countries.
Transmission of information Warning to the resident is transmitted by various methods. It is a radio, a television, SMS, E-mail, a bell, and a megaphone, etc. The intelligence agency in local induces shelter. Hereafter, the technology will develop. I think the forecast of the earthquake and the forecast of the tsunami, etc. to become more accurate.