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An earthquake shook parts of Wales, with tremors felt for 100 miles.
The British Geological Survey (BGS) said the 3.7 magnitude earthquake occurred at 23:59 GMT on Friday and was 3km below the Earth's surface. The storm was north of Brynmawr, Blaenau Gwent and west of Crickhowell, Powys, but people on Twitter reported it could be seen as far as Birmingham.
Gwent Police said they received a number of calls overnight but it was "business as usual" for police. BBC reporter Alex Humphreys said there was a "small earthquake" in Cardiff, 50km away.
"My whole bed is shaking," he tweeted. Others described it as a "scary" experience.
Brian Baptie, head of seismology at BGS, said it was the biggest earthquake in South Wales since a magnitude 4.6 earthquake about 40km to the west, near Swansea, in February 2018. He added that on average, Britain experiences just one earthquake of magnitude 3.7 or greater each year.
The largest earthquake ever recorded in the UK occurred in the North Sea on June 7, 1931, with a magnitude of 6.1.
The wreck is located in the Dogger Bank area, 120 km north east of Great Yarmouth, Norfolk.
The strongest earthquake in Wales occurred in the Llyn Peninsula, Gwynedd, in 1984 - measuring 5.4, it started at a depth of more than 20km. Great Swansea earthquake 'scary'
An earthquake hit parts of the UK
The BGS said minor earthquakes were not uncommon in Wales, with 70 measuring more than 3.5 between 1727 and 1984.
The 5.2 magnitude earthquake in Swansea in 1906 was one of the most damaging British earthquakes of the 20th century, damaging chimneys and walls reported across south Wales.
Listeners told BBC Breakfast Wales they had an 'earthquake' in Ebbw Vale which sent people out of their homes and into the streets.
Robert Griffiths, from Rhiwbina, Cardiff, said he was sitting watching TV one night when 'the whole house suddenly shook'. "The ceiling creaked, we immediately turned off the TV and were like, 'What the hell is that?'
"It looked like 20 trucks drove past the house, so it was very special and amazing."
Stephanie Palfrey from Blackrock, near Abergavenny, said she 'felt the hill behind the house was coming down'.
He said: "Other villagers came out of their houses to see what the noise was about. "We live in an old house. You can hear it crumbling. It's something."
Geoffrey Davies described the "confusion" at Llangattock, near Crickhowell.
“At first, we didn't know what to think. It's the kind of music I've never heard," he added.
"When someone says 'your head is shaking', it's that kind of feeling."
Elsewhere, Cat said she "thought we were going mad" in Blaenavon, Torfaen, as her "bed and house were shaking from side to side". Dr Ian Stimpson, a geologist at Keele University, Newcastle-under-Lyme, Staffordshire, said such events "happen very rarely" in the UK.
"They were a big shock. Earthquakes of this magnitude, the UK probably has about three per year on average," he said.
\"These earthquakes were smaller than the earthquake in Turkey for example - which was a million times stronger than last night's earthquake.''
Other recent earthquakes in Wales have been smaller than Friday's. The BGS reported a magnitude 0.9 tremor in Llwynmawr, near Chirk, Wrexham, on February 4, a magnitude 1.1 in Llandybie, Carmarthenshire, on January 20 and a magnitude 2 in Llanbedr, Powys, on December 27th.
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