The BBC has received calls from people in Staffordshire, Warwickshire, Leicestershire, Manchester, Berkshire and the West Midlands about a "quake".
The tremor could be felt in central Birmingham at about 0100 GMT but it is unclear if it has caused any damage.
The US Geographical Survey's website reported a quake of the magnitude of 4.7 and said the epicentre was 30 miles (50km) south of Kingston-upon-Hull.
That's only 70 miles from where I live