One notion that was bandied about near the end of WWII was, if the Japanese didn’t see sense and surrender, to nuke Mt. Fuji until it went off. (This is a nonsensical idea… not because nuking a volcano can’t make it go off, but in order to physically wreck the volcano, you have to *penetrate* it, and early nukes were no good at that sort of thing.) Well… it may be that the 2011 earthquake might have set that in motion. Maybe.

Japan earthquake has raised pressure below Mount Fuji, says new study