A sixth earthquake in a month has hit Manchester, according to the British Geological Survey. A spokesman said the tremor was felt in the city centre at 5.46am and measured 2.4 on the Richter scale. He said: "Much of the reports were of rumbling and faint shaking. Some people said their beds rattled and moved. One person said a building creaked." The spokesman continued: "An earthquake that size doesn't do damage." Manchester has experienced five earthquakes already this month, between August 10 and August 23, with the highest magnitude measuring 2.5 on the Richter scale. The British Geological Survey said they were also located in the area where 150 tremors occurred in an earthquake swarm between October 2002 and January 2003. A spokesman said: "It's special when it happens in a city because more people report it. "We have earthquakes of this magnitude occurring all the time, about nine a year on average."