It is now possible to appreciate the need for such a large exclusion zone around fires involving gas cylinders as it was reported that the remains of one ended up in the river, which was probably only few yards short of the tracks.
I agree! The fire and explosions were on the roof of the building 3 or 4 storeys up. To have reached the river, the cylinder must have travelled oover a road and pedestrain shopping area. If the story of a cylinder in the river turns out to be true (it was only reported in one Chronicle article) then lots of people had a very lucky escape. A few yards shorter and the cylinder would have landed on the road, a few yards further (and a bit higher to reach the viaduct) and it would have landed on the railway.
The explosions shook my office a mile away