Centro de Alerta de Tsunamis del Pacífico
Sensor data processed by the U.S. Pacific Tsunami Warning Center in Hawaii and the Japan Meteorological Agency, and alerts are forwarded to threatened countries and also made available to the general public. National governments warn citizens through a variety of means, including Cell Broadcast messages, SMS messages, radio and television broadcasts, sirens from dedicated platforms and mosque loudspeakers, and police vehicles with loudspeakers.