Six water pressure sensors placed on the seabed in the southern Bay of Bengal and northern Arabian Sea will act as sentinels in India’s tsunami early warning system, which was formally inaugurated today. The sensors — four in the Bay and two in the Arabian Sea — will look for changes in ocean water level and send readings via satellite to the Indian National Centre for Ocean Information Services (INCOIS) in Hyderabad, the hub for the system. The Rs 125-crore early warning system will also use a network of seismic stations, tide gauges and computer simulations based on seabed studies to issue alerts about tsunamis — waves sometimes triggered by undersea earthquakes. Continue reading “Tsunami sentinels on duty under sea – Six sensors in place, six more to be added”