An earthquake with a magnitude of 2.9 has been felt in the east Midlands, according to the British Geological Survey.
The tremor was reported across Leicestershire, Derbyshire and Nottinghamshire.
Julian Bukits, of the BGS , said the earthquake happened at 5.20am and was "average" for the UK.
Leicestershire Police and the county's fire and rescue services said they had not been called out to any incidents.
The epicentre of the seismic activity was located near Loughborough, Leicestershire, where residents would have felt a bang and a slight vibration.
Mr Bukits said that properties in the area, which has a history of earthquakes, would not have suffered any structural damage.
Mike Flood, 45, who lives in Loughborough with his family, felt the earthquake.
"I was awake, actually - I get up quite early. It was about 5.10am," he said. "It was almost like a plane going over or an explosion in the distance.
"The house creaked - there was no house moving or pictures falling off the wall, but the house just creaked. It was strange. You know something's happened and you know it's not a normal thing."
He said his teenage children were woken up by the quake.
"They were asking what it was, and I said 'Oh, it could have been a plane or it might have been an earth tremor', just to allay their fears.
"Our daughter is in the bedroom at the top of the house so she probably felt it a bit more.
"It woke our son up. I don't think he knew what had happened or didn't hear it, but it woke him up afterwards."
On October 28, 2001, there was a 4.1 earthquake near Melton Mowbray, Leicestershire, which Mr Bukits described as "big by UK standards".
Putting this quake into perspective, the expert said it was a million times weaker than the 8.9 earthquake which struck off the Japanese coast, causing a devastating tsunami in March 2011.
"Earthquakes generally have to be of 4.5 to 5 magnitude to cause damage," he added.
Earthquakes in the UK are described as intraplate seismic activity, as they take place far from tectonic plate boundaries.