Bedwellty Pits explosion, 1880

A sudden outburst of gas fired by naked lights killed at least four men at Bedwellty Pits on the evening of 10 March 1880, less than a year after the previous explosion.

Date10 March 1880
MineBedwellty Pits
RegionBlaenau Gwent
TypeExplosion
Fatalities4 (Four in NMRS; six named by Welsh Coal Mines.)
Context During active mining

Cause

A sudden outburst of gas ignited by naked lights.

What happened

On the evening of Wednesday 10 March 1880, less than a year after the last explosion, gas burst out at Bedwellty Pits and fired at the men's open lights. Welsh Coal Mines names six who died: Thomas Ball, 34, John 'Seth' Williams, 27, Robert Cooper, 23, and Henry Anthony, 29, killed outright; Thomas John Roberts, 27, who died later; and Charles Pugh, 19, who died on the 12th. They were buried together at Tredegar Cemetery on the 15th, before a vast crowd.

Investigation & inquiry

The inquest jury found the accident due to a sudden outburst of gas fired by naked lights, and pressed the managers to work the pit with locked lamps.

What's uncertain

Points where sources disagree or the record could not be settled; both accounts are kept. All open questions in the archive.

Recorded claims

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

Related terminology

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

Sources

  1. (secondary) Bedwellty Pits — Northern Mine Research Society
  2. (secondary) Welsh mining fatalities, 1880 — Welsh Coal Mines

Record created: 7 October 2026 · Last researched: 7 October 2026

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