AN EARTHQUAKE which was felt in parts of Powys on Monday afternoon may have been the biggest to hit the UK in 20 years, according to quake-spotters.

While the epicentre of the earthquake that hit at about 3.30pm was near Wem, in north Shropshire, there are reports of some shockwaves being felt across the border around Llanymynech feeling the impact.

The British Geological Survey has indicated that the tremor measured 3.8 on the Richter scale.

According to the website Volcano Discovery, a website led by German volcanologist Dr Tom Pfeiffer, that would make it the biggest quake to strike anywhere in the UK since 2002.

In that year, a quake measuring 4.8 on the Richter scale struck in Dudley, in the West Midlands, and another measuring 4.3 was felt in Manchester as part of a series of tremors to hit the North Western city that year.

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It would also rank it as one of the 10 to 20 biggest quakes to hit the UK in the last century, the site continues.

"Initially given as a magnitude 4.2, the British Geological Survey downgraded it to a magnitude 3.8 event," the site says.

"Even so, this lets it probably count as the largest quake in the area for approx. 20 years, and would rank among the 10-20 largest quakes in England for a century."

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