A second memorial to the victims of “the forgotten disaster” was unveiled on Friday.

The Moorgate Tube crash on February 28, 1975, left 43 people dead when a packed commuter train crashed through buffers into the wall at the end of a tunnel. It was one of Britain’s worst train catastrophes.

But for almost 40 years no memorial was laid, until a permanent tribute was unveiled in Finsbury Square last year.

Now, 39 years to the day, a plaque has finally been placed outside the station, revealed by the Lord Mayor of London, Fiona Woolf CBE, the Venerable David Meara, Archdeacon of London, and Mike Brown, managing director of London Underground.

Kenneth Thrower, who lost his father in the tragedy and founded the campaign for a memorial, said: “It was good occasion and a nice service. It finally puts a bit of a lid on things.

“The disaster was a bad time. It finished my mother off and there were a lot of repercussions. Quite a few people came up at the service and thanked me. I feel pleased that I’ve done it, but I didn’t do it for glory, I just did it because it was the right thing to do.

“It makes you wonder why it was left so long.”