User blog comment:Tessitore/An underground city in 1983:Doomsday/@comment-2239213-20100810003446

I've had a look and it appears that the nearest detonation was at Bristol which was about 28 miles from the bunker and about 32 miles from the nearby town of Corsham where a lot of the above mentioned in the know locals lived. I'm not sure if that's far enough, but as I said, it's a nuclear bunker, plus it's not too far from Corsham and a couple of other towns and villages so it wouldn't take long for the locals to get there and as I said, they were apparently planning to go there if a scenario like Doomsday occurred.

As for the other articles for the UK, I haven't found any mention of it so far.