The example of an underwater explosion of unknown strength off the coast of Sri Lanka
The example of an underwater explosion of unknown strength off the coast of Sri Lanka on 27 May 2003 is shown here: the topographic map on the left shows the source and the station in the Chagos archipelago in the Indian Ocean; the direction-finding is shown in the centre; and the diagram on the right shows the hydroacoustic signals recorded in Pascal (Pa).
Source: BGR