Several booms with ‘no explanation’ have been heard across the globe (Picture: Getty Images)

A massive mystery ‘boom’ in Alabama earlier this week was so shocking some residents even called police because of the suspicious sound.

The noise – dubbed the ‘Bama Boom’ – was so powerful it actually shook houses and left windows rattling.

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Terrified people living in Alabama took to Twitter to share their fears and confusion about the sound, that has yet to be identified.

Suggested causes of the sound ranged from supersonic aircrafts to meteors exploding in the atmosphere, while some conspiracy theorists even tried to claim it could be the beginning of the end as doomsday approaches.


But it seems mystery booms are becoming more frequent elswehere in the world too – with a reported 64 unexplained sounds in 2017 alone.

Re: loud boom heard: we do not see anything indicating large fire/smoke on radar or satellite; nothing on USGS indicating an earthquake. We don't have an answer, and can only hypothesize with you. 1) sonic boom from aircraft; 2) meteorite w/ current Leonid shower? — NWS Birmingham (@NWSBirmingham) November 14, 2017

Still no explanation for the “Bama Boom” around 1:45p CT. Reports are from Blount, Jefferson, Walker, Cullman, Talladega, Calhoun, Clay, Winston, Randolph, Tuscaloosa, St. Clair counties. No explanation from USGS, NOAA, or EMA. Waiting to hear back from NASA… possible meteor — James Spann (@spann) November 14, 2017

@spann has nasa or anyone figured out what the bama boom was yet? — Michael Henley (@risibleusername) November 19, 2017

Can we all agree that the Bama Boom yesterday was just Eleven opening the portal to the upside down? Get your nail bats ready guys, we have a demegorgon to kill. pic.twitter.com/R1jccWFOe8 — Anna Blackwell (@AnnaH_Blackwell) November 15, 2017

Locations varied from Swansea and Yorkshire to Cairns on the east coast of Australia.



In May, residents in Abergavenny, Wales, were shocked after they heard a series of booms in May.

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Speaking to the Abergavenny Chronicle, one resident said: ‘It nearly gave me a heart attack it was that loud.

‘At first I thought it was shotgun blast or a firework, but it was way too loud for that. It sounded more like a tank going off.

‘My husband said it was probably mini meteors colliding with the earth, but have you ever heard such nonsense?’

The source of the Welsh booms have remained unsolved.

Last year a fighter jet passed over Doncaster, breaking windows and was extremely loud (sonic boom) – maybe that? Hopefully not some kind of attack. — Oliver Ward (@Oliver_Ward2) November 22, 2017

That's cool, but what about the #BamaBoom? We just gonna be like "nothing to see here, move along"? — Randy Bryant (@Garbledust) November 18, 2017

In October, an unknown sound was heard in Cairns, Queensland, Australia, with theories ranging from a gas explosion to a meteorite.

While in Idaho on November 15 – a day after the Bama Boom – multiple people reported hearing a loud bang at around 11pm at night.

Its cause and location remain unclear – though some compared it to a sonic boom.

What ARE those mysterious booms? Sonic boom: A sonic boom is the sound associated with the shock waves created by an object travelling through the air faster than the speed of sound.

Sonic booms generate significant amounts of sound energy, sounding like an explosion to the human ear. Military exercises: Many unexplained loud noises are due to military training, at Army or Naval bases in remote areas. Controlled explosions: A controlled explosion is a method for detonating or disabling a suspected explosive device, such as bags left at train stations. Unusual weather: Many loud noises link back to unusual weather events, such as electrical storms or thunder storms. Meteors: Large meteors passing above Earth often produce shock waves that can be heard as a sonic boom. Aliens: And of course the list of suggestions would be incomplete if it didn’t include the posibility that aliens are behind the booms. Conspiracy theorists jumped on the Bama Boom on Twitter when Nasa failed to provide in explanation.

A sonic boom is a sound associated with shock waves created by an object travelling through the air faster than the speed of sound (741 mph).

They sound like an explosion to the human ear, as a significant amount of sound energy is created.

Often, sonic booms are created by aircraft – including military jets.