Teng Hoi Conservation Organization specializes in the detection of the sounds of explosions underwater from fish bombs (see here). Our technology can also listen out for the sounds of earthquakes.
The US government recorded this sound sequence around 1400 km from Japan in Alaskan waters. Automated monitoring of underwater sounds with a network of sensors can help to provide additional and vital information so that effective warnings of tsunamis can be provided earlier. In future we hope that the massive death tolls arising from the Indian Ocean Tsunami in 2004 and now in the Japanese Tsunami of 2011 can be much reduced.