Parts of Greater Manchester have been hit by a probable 'sonic boom' today after residents reported an earthquake hitting the North West.
Earlier this morning people living in Lancashire and parts of Greater Manchester, Merseyside and Cheshire made reports of an earthquake on social media.
A number of people said they heard a loud bang then a loud rumbling sound and felt the quake at around 11am (February 15).
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In a statement, the British Geological Survey said they had no records of any seismic activity at that time but pointed to possibility of a 'sonic event' being the probable cause.
The statement said: "BGS has received numerous reports from residents mainly in the Lancashire area but also Merseyside, Greater Manchester and Cheshire who reported a felt event sometime around 11:00 today.
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"Data from BGS seismic networks were examined and signals consistent with a possible sonic origin were recorded at that time.
"British Aerospace confirmed they did have aircraft airborne at the time and two RAF aircraft but cannot confirm at this time if any had gone supersonic."
There had been suggestions on social media the event could have been an RAF plane breaking the sound barrier.
LancsLive reports that people in Blackpool, Lytham and Southport have taken to social media to say they have heard and felt it.
One person said: "Did anyone else feel a rumble about 11am in Lytham?"
Another said: "My house shook thought a lorry had backed into it."
A third said: "Heard two loud bangs/ rumbles like thunder, central Blackpool."
The cause of the tremors are yet to be confirmed by the British Geological Survey.
