I certainly felt it, the epicentre was reckoned to be about 20km NNE of Swansea so must have been about 6 or 7 km from my home. The event lasted up to a few seconds and at first I thought it was a nearby quarry blasting but this was much worse. There is also a main road at the front of the house and I checked to see if a large truck had demolished the boundary wall. A friend phoned and told me it was a quake.
With all the rain we have been having the ground is waterlogged, this is S.Wales after all, so. the effect was made worse.