Captain KLV Prabhakaram, officiating Command Met Officer, Headquarter Western Naval Command, during trials of Tsunami Warning System Siren. The Digital Electronic Board (in the background) carries the details of the warning when the siren is sounded. The Siren and a Digital Electronic Board is part of a system for issuing early warning in case of a Tsunami threat in the Indian Ocean region (IOR). The siren has a radical range of 03 km in all directions and will have continuous hoot for one minute. The system is installed at the Meteorology Office of Western Naval Command by Indian National Centre for Ocean Information Services (INCOIS), an autonomous organisation under Ministry of Earth & Sciences (MoES), Government of India.