TOKYO — An unexploded U.S. bomb from International Warfare II that have been buried at a Eastern airport exploded Wednesday, inflicting a big crater in a taxiway and the cancellation of greater than 80 flights however no accidents, Eastern officers stated.Land and Delivery Ministry officers stated there have been no airplane close by when the bomb exploded at Miyazaki Airport in southwestern Japan.Officers stated an investigation by means of the Self-Protection Forces and police showed that the explosion was once brought about by means of a 500-pound U.S. bomb and there was once no additional risk. They had been figuring out what brought about its surprising detonation.A video recorded by means of a close-by aviation college confirmed the blast spewing items of asphalt into the air like a fountain. Movies broadcast on Eastern tv confirmed a crater within the taxiway reportedly about 7 meters (yards) in diameter and 1 meter (3 toes) deep. Leader Cupboard Secretary Yoshimasa Hayashi stated greater than 80 flights have been canceled on the airport, which hopes to renew operations on Thursday morning.Miyazaki Airport was once in-built 1943 as a former Imperial Eastern Army flight coaching box from which some kamikaze pilots took off on suicide assault missions.Quite a lot of unexploded bombs dropped by means of the U.S. army throughout International Warfare II were unearthed within the space, Protection Ministry officers stated. Masses of heaps of unexploded bombs from the battle stay buried round Japan and are occasionally dug up at development websites.