Countries bordering the Pacific Ocean will test the tsunami warning system from 2 to 6 February. "More than 40 countries will take part in the exercise named PacWave15," UNESCO Press mentioned. It is designed to assess the effectiveness of the communication systems used for warnings for which the messages will be issued by the Pacific Tsunami Warning Center (PTWC) in Hawaii and the Northwest Pacific Tsunami Advisory Centre in Japan to focal points in every country.