Eppleton Colliery Explosion, 1951

An explosion at Eppleton Colliery on 6 July 1951 killed nine men. Firedamp was ignited by the defective master control box of a Joy loader — a mechanical coal-loading machine — and the flame was carried on by coal dust. The Mines Inspector reported on it.

Cause

Firedamp ignited by the defective master control box of a Joy loader, the explosion then propagated by coal dust.

What happened

By 1951 the coal at Eppleton was being loaded mechanically. On 6 July the master control box of one of the colliery's Joy loaders was defective, and the fault ignited firedamp; coal dust then carried the explosion on. Nine men were killed. The colliery was four years into National Coal Board ownership and had another thirty-five years to work.

Investigation & inquiry

HM Inspector of Mines reported on the disaster; the Durham Mining Museum holds the text of that report.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

• Nine men were killed. (high) ^1,2
• An explosion of firedamp propagated by coal dust, the ignition caused by the defective master control box of a Joy loader. (high) ^1,2
• The colliery was under the National Coal Board at the time. (high) ²

Related terminology

Mining terms this disaster is structurally linked to, with the nature of the relationship.

• Coal (contextual relationship)
  Named 4 times in this record, first in the summary: “…a mechanical coal-loading machine — and the flame was carried on by coal dust. The Mines Inspector reported on it.”
• Colliery (contextual relationship)
  Named 3 times in this record, first in the summary: “An explosion at Eppleton Colliery on 6 July 1951 killed nine men. Firedamp was ignited by the…”
• Filler (contextual relationship)
  Named twice in this record, first in the summary: “…Firedamp was ignited by the defective master control box of a Joy loader — a mechanical coal-loading machine — and the flame was carried on…”
• Firedamp (contextual relationship)
  Named 3 times in this record, first in the summary: “An explosion at Eppleton Colliery on 6 July 1951 killed nine men. Firedamp was ignited by the defective master control box of a Joy loader — a…”
• National Coal Board (contextual relationship)
  Named in this record’s narrative: “…explosion on. Nine men were killed. The colliery was four years into National Coal Board ownership and had another thirty-five years to work.”

Sources

1. (secondary) Durham Mining Museum: Eppleton Colliery — Durham Mining Museum
2. (secondary) Durham Mining Museum: Colliery Disaster, 6 July 1951 (Eppleton) — Durham Mining Museum

Record created: 3 September 2026 · Last researched: 3 September 2026