By M V Sunanda, T Srinivasa Kumar, Dipankar Saikia, S S C Shenoi, Shailesh Nayak
The authors are scientist C, scientist F, scientist B and director, respectively, at Indian National Centre for Ocean Information Services, Hyderabad and secretary, Ministry of Earth Sciences. email@example.com
The Japan Meteorological Agency (JMA) on 11 March 2011 warned that a 3-m-plus tsunami would hit north-eastern Japan. In fact, the wave that came ashore stood more than 10 m high — reaching 40 m in some places.
The Indian Tsunami Early Warning System (ITEWS) can successfully issue timely and accurate warnings. However, the 2011 earthquake in Japan and 2012 in Northern Sumatra once again emphasised the limitations in traditional approaches that necessitate improvements. Thus the Earth System Science Organisation (ESSO) has initiated improvements in the ITEWS that includes establishment of co-located broadband, GPS and strong motion sensors for measuring displacements and ground accelerations in real-time. The Indian mainland and islands are located in a zone of significant...