. Based in Hawaii, it is used by 26 nations, including the United States and Japan.

The Japanese delegation said it would try to play a leading role through this system.

"In response to requests from the Indian Ocean region, Japan is ready to provide tsunami warning information from observational data through existing networks," Vice Foreign Minister Shuzen Tanigawa said.

UNESCO officials and delegates said they are confident that, based on this system, the Indian Ocean region can have one up and running within a year, if there is international agreement to act quickly.