A press blackout was enforced and naval personnel
were ordered not to talk about the incident. The
disaster was classified until 1960 and is therefore not well known.
One of the Japanese mini submarines that entered Pearl on Dec 7 was un-accounted for. One theory is that the sub was scuttled by it’s crew near the location of the explosions. It hull was tore up in the explosions and was unrecognizable when the damaged ships were salvaged for scrap.