The Pacific Tsunami Warning Center (PTWC) is one of the United States' two tsunami warning centers operated by its National Weather Service to monitor the world's oceans 24/7 for tsunami hazards, respond to tsunamis with appropriate alerts, develop new tsunami hazard detection techniques, and inform emergency managers and the public about their operations and tsunami science. PTWC is primarily responsible for protecting Hawaii, U.S. Pacific territories, and nations participating in the Pacific and Caribbean tsunami warning systems. For more information about PTWC please see our official site at tsunami.gov/ (link below).