Board Thread:Monster Discussions/@comment-25008527-20140725215534/@comment-25285745-20140819184116

After watching it again, the scene in question is at 58:27. Terasawa finds a newspaper article referring to the disappearance of a nuclear sub in the Bering Sea. However, no date is given in the Japanese version of the film nor is a date visible on the paper apparently. It seems they only state that it occurred in the 1970s in the English dub.