The biggest earthquake in the UK for nearly 25 years has shaken homes across large parts of England.
People in Newcastle, Yorkshire, London, Manchester, the Midlands and Norfolk felt the tremor at about 0100 GMT.
An elderly man suffered leg injuries when a chimney collapsed in Wombwell in South Yorkshire, emergency crews said.
The British Geological Survey (BGS) said it believed the quake was of the magnitude of 5.3 and that the epicentre was in Market Rasen in Lincolnshire.
Bev Finnegan, who lives in Market Rasen, said: "I was terrified to be honest. The noise was really, really terrifying... it was so deep and rumbling.
"It felt like the roof was going to fall in. There were people coming out in their dressing gowns wondering what it was. It was quite an experience."
Dr Brian Baptie of the BGS said the quake was of a level to cause minor damage to buildings.
"An earthquake of this size, of magnitude five or thereabouts, will occur roughly every ten to 20 years in the UK," he said.
Wednesday morning's earthquake was the biggest recorded example since one with a magnitude of 5.4 struck north Wales in 1984.
UK Earthquake*******
Wow! I was sat at my pc and felt like someone was shaking my chair, and the ground underneath me felt like jelly. It felt surreal.
There have been a few smaller ones during the past few years, but not as strong as this one in my opinion lol.