sentences:  It was the largest British earthquake since the 2002 Dudley earthquake and the strongest in the Dover Straits since a magnitude 4.4 earthquake in 1950.The strongest recorded British earthquake is the 1931 Dogger Bank earthquake, which measured 6.1 on the Richter scale.Ten months later, the earthquake's strength was surpassed by that of the 2008 Lincolnshire earthquake, which was 5.2 in magnitude.