<P> The system became active in late June 2006 following the leadership of UNESCO . It consists of 25 seismographic stations relaying information to 26 national tsunami information centers, as well as 6 Deep - ocean Assessment and Reporting of Tsunami (DART) buoys . However, UNESCO warned that further coordination between governments and methods of relaying information from the centers to the civilians at risk are required to make the system effective . </P> <P> Sensor data is 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 SMS messages, radio and television broadcasts, sirens from dedicated platforms and mosque loudspeakers, and police vehicles with loudspeakers . </P> <P> The system was not yet operational during the 2006 Pangandaran earthquake and tsunami . The Indonesian government did receive tsunami warnings from the warning centers but did not have a system to relay the alert to its citizens . At least 23,000 people did evacuate the coast after the quake, either fearing a tsunami or because their homes had been destroyed . Waves as high as 7.39 m (24.2 ft) still resulted in about 700 fatalities and 9,000 injuries . </P> <P> In the 2012 Banda Aceh earthquake of 8.4 magnitude, the system alerted the Indian islands on Andaman and Nicobar within 8 minutes . Some tsunami warning sirens in Aceh were delayed by about 20 minutes due to failure of the electrical grid caused by the proximity of the earthquake, and evacuation routes in Banda Aceh were jammed with traffic . </P>

Where is the tsunami warning system located in indian