'Sonic boom' heard in Northamptonshire
An explosion sounding like a 'sonic boom', which occurs when a plane breaks the sound barrier, has been heard over Northamptonshire.
'Sonic boom' heard in Northamptonshire
An explosion sounding like a 'sonic boom' has been heard over Northamptonshire.
Sonic boom is a common name for the loud noise that is created by the 'shock wave' produced by the air-plane that is traveling at speeds greater than that of sound.
It usually causes a loud bang and tremors can be felt on the ground.
The fire service have confirmed that the sound was caused by two Typhoon jets flying in the area.
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