If a tree falls in the forest and no-one is there to hear, does it make a sound?
How about if a really big rock falls out of the sky and no-one is near where it lands?
Well, "near" in this case is a relative thing. Peter Bruvold, a farmer in Lyngseidet, Norway, heard it fairly clearly when a meteorite of as yet undetermined size slammed into a mountain some eighty miles away in Reisadalen at 02:05 on Wednesday, although he didn't actually hear it until seven minutes after he saw the fireball¹. The flash and fireball were visible for several hundred kilometers, including the Troms and western Finnmark districts, and the explosive blast of the impact has been estimated to be comparable to the Hiroshima bomb (in other words, in the 15 to 20 kiloton range).
The meteorite has not been recovered, but Norwegian astronomer Knut Jørgen Røed Ødegaard said he expects it to be larger than the 198-pound meteorite that fell in Alta in 1904.
The largest meteorite crater ever found in Europe was discovered off the Norwegian coast in the Barents Sea in 1999, by geologists prospecting for oil. It was formed 150 million years ago by an asteroid estimated to be possibly 500m in diameter, travelling at around 19,000mph (Mach 25) at impact.
[1] The speed of sound is 1040 feet per second at sea level at standard temperature and pressure. Assuming exactly seven minutes, four hundred and twenty seconds times 1040 feet per second gives 82.73 miles. But it probably wasn't exactly seven minutes, and the meteor hit above sea level, and the air temperature was probably colder than "standard", so the best we can infer is "about eighty miles".