Project Seal ( also known as the Tsunami bomb) was a program by the New Zealand military to develop a weapon that could create destructive tsunamis. This weapon was tested off the coast of Auckland between 1944-1945. The experiments were conducted by Professor Thomas Leech. British and US defense chiefs were eager to see it developed and it was considered as important as the atomic bomb. It was expected to cause massive damage to coastal cities; it could have even been used with a nuclear charge. The weapon was only tested using small explosions and never on a full scale. After 4000 test explosions over a seven-month period, none of which generated an appreciable tsunami, the project was closed down when it was determined that there were errors in the theoretical basis of the plan. The top secret documents on Project Seal were only declassified in 1999.