The link below to the HMS Hood association shows the condition of the wreck today. Note that A and B turret magazines did not detonate. The bow seperated ahead of A turret, but this is likely due to stresses during sinking or on striking the bottom rather than battle damage; the break occuring at the joint between the strength girder of the ship (ie armored box) and the unarmored bow section. Also note how the after section from Y turret to about mid-ships in the engine rooms was thoroughly destroyed. This follows the description of the detonation from Jurgen's article very closely.
H.M.S. Hood Association-Battle Cruiser Hood: H.M.S. Hood Today - The July 2001 Expedition to find the wrecks of Hood and Bismarck
As a note: Peter, I took a tour of the
Belfast some years ago. Is the ship still in as good a condition as it was then?