Express & Star readers also reported feeling tremors in Great Bridge, Kidderminster, Netherton, Walsall, Coseley and Stafford.
Today's quake was the "biggest onshore United Kingdom event in 10 years" and 8 million times smaller than the magnitude 9.0 in Japan in March 2011, the BGS said.
The tremor - with a magnitude of 4-point-4 - struck around 20 kilometres north of Swansea just after two-thirty this afternoon.
So far there have been no reports of major damage or injuries. At first, many weren't sure if they had experienced an natural disaster.
The club said on Twitter: "43' - temporary stop in play".
One said: 'Wtf! My house just shook!
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"All the neighbors were out asking 'what's happening?'" said Steven Clathworthy, who lives near Bridgend, south Wales, the BBC reported.
"It was quite frightening and a number of people went out of their homes to investigate", he said.
A spokesman for the BGS said: "It was a reasonably-sized quake".
Twitter users reacted to the "earth moving" event.
"My desk was moving independently of itself and there was a low rumble".
But not everyone felt the earth move, with others complaining they had missed it.