Anyone wishing more detail should look the death date up in local newspapers, an inquest report will give a lot of information.
Sources: -

1800 - June 1852 Nottingham newspapers Angel Row Library Floor 1
July 1852 - 1914 Mines Inspectors Annual Reports Greens Library Nottingham University
These are now online Ian Winstanley {Rayleys}
After 1914 various Derbyshire Libraries Chesterfield, Heanor, Ripley, Alfreton, Ilkeston

Nottingham Journal Friday 12 June 1857
Colliery Explosion, at West Hallam

It appears that about 12 o’clock some men who were working on the field near the pit, heard a noise similar to the explosion of gunpowder which proceed from the pit, they immediately ran to the pit, and were informed that an explosion had taken place. This dreadful intelligence spread like lightening, and for miles people were seen running in great excitement towards the pit to learn whether their relatives were among the sufferers.

Meanwhile the miners were making every exertion to convey the sufferers to the top of the shaft, four of whom were severely burnt and several others slightly injured. The poor fellows were immediately conveyed to their homes, where medical aid was speedily procured. 

It is believed that no blame is attached to the workmen respecting the explosion, the immediate cause of which is not yet known.
The names of the sufferers are Elijah Hart (severely) his son Zadok Hart, burnt, William Keeling, slightly bruised, all of West Hallam. A boy Robert Leeson, burnt, of Stanley Common; Samuel Barnes, thigh broken, Stephen Barnes and John Straw (severely burnt) all of Ilkeston. 

It is supposed that two horses and a donkey are burnt to death, but owing to the state of the pit they have not been able to search for them at the present time.

There were around 100 men in the pit when the explosion took place.

Thanks to Alan Beales for the article

- Lots More at Mapperley History -