Videos on social media showed people gathered outside Swansea University, which was holding an open day, after an apparent evacuation.
The British Geological Survey said the tremor had a 4.4 magnitude, with a depth of 7.4km, and the epicentre was about 20km north of Swansea. However, no reports of serious damage or injury has been recorded.
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The British Geological Survey said on Twitter that an natural disaster of that magnitude occurs in Britain about every two or three years.
Many took to Twitter to share their experiences as well.
The club said on Twitter: "43' - temporary stop in play".
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Port Talbot is more than 15 miles from the epicentre near the Swansea Valley village of Cwmllynfell, but tremors were felt as far afield as Liverpool and the English Midlands.
"An natural disaster of this size, of magnitude five or thereabouts, will occur roughly every 10 to 20 years in the UK", Brian Baptie of the BG said at the time.
Although the natural disaster was the fifth strongest seismic event to hit the United Kingdom since 2000, thankfully no one appears to have been seriously hurt so far. "We hoped that you had a surprisingly "earth moving" experience!"
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