High Quality Content by WIKIPEDIA articles! The RAF Fauld explosion was a military accident which occurred at 11:11am on Monday, 27 November 1944 at the RAF Fauld underground munitions storage depot. The RAF Fauld explosion was one of the largest non-nuclear explosions in history and the largest to occur on UK soil. Between 3,450 and 3,930 tons (3,500 and 4,000 tonnes) of ordnance exploded mostly comprising high explosive (HE)-filled bombs, but including a variety of other types of weapons and including 500 million rounds of rifle ammunition. The resulting crater was 120 metres (400 ft) deep and 1,200 metres (0.75 miles) across and is still clearly visible just south of the village of Fauld, to the west of Hanbury Hill in Staffordshire, England. A nearby reservoir containing 450,000 cubic metres of water was obliterated in the incident, along with a number of buildings including a complete farm. Flooding caused by destruction of the reservoir added to the damage directly caused by the explosion.