People tweeted that a loud "explosion" had woken them at about GMT - with houses shaking and reports of police sirens straight after.
The noise was generated by two Royal Air Force Typhoons, which launched from Coningsby in Lincolnshire and intercepted an unresponsive aircraft. The sonic boom was heard across London, Hertfordshire and Bedfordshire. London's Metropolitan Police subsequently confirmed the bang was the result of the RAF aircraft being cleared to go faster than the speed of sound.
RAF jets are only given permission to go supersonic in emergencies, usually when they are required to intercept another aircraft. The loud bang heard throughout north London and surrounding areas was the result of a sonic boom from RAF planes. There is no cause for concern.
Free chat rooms cheaters kozani wondered whether her boiler had blown up or a tree had fallen on the house, she said. Kiran Topan tweeted this video: explosion heard this sound in North West London pic. View original tweet on Twitter Actor Logan Dean tweeted that he was among those who heard the noise: Anyone else hear a loud bang ssonic feel the shockwave am?
View original tweet on Twitter What causes a sonic boom?
A sonic aonic happens when that air "escapes", creating a ripple effect which can be heard on the ground as a loud thunderclap. It can gay phone chat bolton heard over such a large area because it moves with the plane, rather like the wake on the bow of a ship spreading out behind the vessel.