National Weather Service: Pacific Tsunami Warning Center

The Pacific Tsunami Warning Center (PTWC) provides warnings for Pacific basin teletsunamis (tsunamis that can cause damage far away from their source) to almost every country around the Pacific rim and to most of the Pacific island states, Indian Ocean, Carribean Sea, South China Sea, United States mainland and Canada

The link address is: http://www.prh.noaa.gov/ptwc/?region=0%2520