The Angus explosion slipped under the news radar in August 1945.
Britain was weary and hungry and the priority was solving the deepening food crisis.
Ration cuts were considered as the country exported food to prevent anarchy in Europe.
So news of a massive blast that rocked Angus and Fife was overshadowed.
It happened at 5pm on August 28. Houses across southern Angus and Fife were shaken.
As Broughty Ferry people rushed to the beach to see what had happened, they were greeted by a scene of calm. A woman inside her home on Fisher Street saw a blinding flash come down her chimney and pass her face.
The effects of the explosion were so acute on Long Lane that people thought the street was the epicentre of the blast. In Carnoustie, Arbroath, north Dundee, Newport, Tayport and Leuchars, houses were rocked.
As far inland as Tealing, windows rattled but St Andrews was unaffected. The blast happened just hours before the Soviet Union detonated its first nuclear bomb but any connection seems far-fetched.
One suggestion was a sea mine but if you were close enough to hear one of these going off, you’d be close enough to experience the damage.
The effects of a sea mine explosion are local and do not explain the widespread earthquake-like effect of the Angus blast.
A mine would have damaged a large part of Broughty Ferry, as had happened in Arbroath the previous year.
In November 1944 a mine broke its moorings in a fierce storm and settled on the foreshore at Seagate. It was spotted in time and homes evacuated. There was a tense wait for high water and at 3pm it blew up.
The explosion shattered thousands of panes of glass and left 100 houses uninhabitable. It stripped roofs from houses, cracked walls and smashed shop windows as far away as Kirk Square and Brothock Bridge.
An air-raid shelter situated yards from the blast survived but its door was turned to tinder.