The document discusses the Indian Ocean's tsunami warning system. It was established in 2004 after the devastating Sumatra earthquake and tsunami. The system aims to apply a similar tsunami warning system to the one used in the Pacific Ocean. However, operating and maintaining the system is difficult for the countries along the Indian Ocean coast due to a lack of experience and specialists. There is also a high possibility that the system will not function adequately given the rare occurrence of large tsunamis around every 100 years.