Mystery Booms

Discussion in 'General Forteana' started by Anonymous, Nov 16, 2001.

  1. Mighty_Emperor

    Mighty_Emperor Beloved of Ra

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    Not that this has stopped the booming:

    www.peninsuladailynews.com/sited/story/html/236098
     
  2. citizencane

    citizencane Devoted Cultist

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    In support of the sky objects theory, there is a comet due this month , soon actually,and it will pass very close (in astronomical terms) to the earth. The last time it passed it was close as well, and broke into some small fragments and a large fragment.
    These smaller fragments could be a danger since they can be pulled from there orbital path more easily and get sucked into the atmosphere.
    I believe it was due to pass on the 12th of this month IIANM.
    Is it TEOTWAWKI ?
    I feel fine.
     
  3. Niall114

    Niall114 Junior Acolyte

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    To be honest, I don't remember any items about the mystery thuds before, but it's solved now..

     
  4. OldTimeRadio

    OldTimeRadio Antediluvian

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    Isostatic Reactions

    Some "booms" such as the famous "Moodus Noises" of New England seem to be isostatic reactions.

    During the most recent Ice Ages (only an eyeblink ago in geological time) the tremendous weight of the glacial ice pack so severely depressed the landscape that it is STILL popping back up into its pre-Ice Ages shape!
     
  5. rjmrjmrjm

    rjmrjmrjm Justified & Ancient

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    Formby in West Lancashire? Have we gone through a time slip? I always thought it was Merseyside myself.
     
  6. Niall114

    Niall114 Junior Acolyte

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    Formby is still in Sefton, the sound carried into West Lancashire.
     
  7. Number_6_uk

    Number_6_uk Devoted Cultist

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    FWIW, and off-topic (sorry!), Merseyside isn't a real county anyway. It was an administrative county until 1986 apparently, but was never an actual county. I still use Lancashire on my address anyway :)
     
  8. Niall114

    Niall114 Junior Acolyte

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    Further to my note on the quoted piece

    I have now heard the "booms" and quite curious they are too; a low, deep, periodic rumble like a heartbeat.

    Frequency seemed to be something like once every other second or so. (so, maybe 0.5Hz?)
     
  9. akaWiintermoon

    akaWiintermoon Abominable Snowman

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    Police Probe Mystery Boom.

    From AOL news,
    http://news.aol.co.uk/police-probe-mystery-boom/article/20061026154809990019

     
  10. Mal_Adjusted

    Mal_Adjusted Justified & Ancient

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    the beeb version of events

    http://news.bbc.co.uk/1/hi/england/cornwall/6088008.stm
     
  11. Mal_Adjusted

    Mal_Adjusted Justified & Ancient

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    more:

    Source

    [Emp edit: Fixing big link]
     
  12. Jerry_B

    Jerry_B Antediluvian

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    IIRC, there were reports of similar booms further to the east (over Somerset) back in the early 1990s.
     
  13. Mal_Adjusted

    Mal_Adjusted Justified & Ancient

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    http://www.guardian.co.uk/uk_news/story ... 18,00.html

    interesting article on sonic booms on wikipedia:

    http://en.wikipedia.org/wiki/Sonic_boom
     
  14. mindalai

    mindalai Abominable Snowman

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    I live fairly near Armley but I didn't hear these, so I don't know how load they were, but anyway, they've been explained - sort of. I notice they didn't go into much detail of what the explosions actually were, or why they needed them.

    source
     
  15. ramonmercado

    ramonmercado CyberPunk

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    An exploding UFO? Chemtrail combustion?

     
  16. uair01

    uair01 Justified & Ancient

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    Skeptoid - a fun skeptic site - has it's own boom story:
    The Bell Island Boom
    Was the cause of this shattering boom in Newfoundland natural, or a test of a superweapon?

    http://skeptoid.com/episodes/4190
     
  17. LordRsmacker

    LordRsmacker Abominable Snowman

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    Now that makes a lot of sense! In Sept 2009 I stopped on a campsite in Spain near Tarragona. As dusk began to fall, I could hear what I thought was a kick drum being soundchecked through a massive PA system. I own a PA company, so thinking there was a music festival on nearby, it didn't concern me too much, other than the fact it was going on....and on....., till way after midnight. Obviously not a band, just the same monotonous thud-thud. I asked fellow campers next morning but no-one was even aware there had been a noise!
    Moving on, I went further down the coast, stopped for lunch on the beach and could hear it again, thud thud thud, pretty much all afternoon. I am convinced it was coming from out at sea.
    This pile-driver theory sounds very feasible as to the cuse of the booms I was hearing, they are well into their wind farms out in Europe.
     
  18. rynner2

    rynner2 Great Old One

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    Sonic boom shakes north east - eyewitness account
    I was in Berwick-on-Tweed yesterday when a mysterious rumble shook the town for a few seconds.

    It's not often that journalists are at the scene of a story when it actually happens, usually we are following up the story at a later point.
    But yesterday by sheer coincidence, I happened to be in the border town of Berwick-on-Tweed at approximately 3.15pm.
    You might wonder why this information is significant.

    Something strange happened. I was with a photographer colleague in a Morrisons supermarket grabbing a quick hot drink in the restaurant while out on another story. The restaurant was bustling with customers and the supermarket was also very busy.
    Suddenly, a loud booming noise rumbled across the roof of the building. We felt like were in the middle of an earthquake or some kind of unusual seismic event.
    It felt similar to the sonic boom you experience when RAF fighter jets go past on exercise - but we were not aware of any aircraft overhead at the time.

    The roof began to shake violently and it looked as if it was sagging and about to fall in at one point, as it shook. Within seconds, the boom reached a crescendo as we all looked up, astonished.
    Then it stopped. "What on earth was that?" we said to each other, not quite believing what had happened. The other people seemed equally baffled, staring at the roof in bemused wonderment.

    We tried to find out what was going on, but no-one seemed to know. "Did you hear that?", people were saying. Two managers were outside, looking bewildered as they checked for damage on the roof. We asked them what had happened. "We have no idea," they said and went back into the store.
    There was no obvious damage anywhere. No cracks in the ground and the sound seemed to be coming from above, not deep beneath the ground.

    The British Geological Survey said it was likely to have been a "sonic" event caused by fast planes flying in the area. People living in Northumberland and Tyneside contacted police after buildings shook and a loud rumbling noise was heard.
    However, there were no reports of any injuries or damage.

    The BGS said it had received calls from people in Northumberland and Tyne and Wear, with reports including "I heard a low frequency rumble", that the "whole house shook" or the caller "heard a very loud boom".
    It said the survey has received information from the media, the police and several residents in towns and villages in Northumberland and Tyne & Wear, who reported that they felt an event sometime around 3.15pm.
    Reports described "the front door shook and the letterbox flapped", "felt a very heavy rumble as if a heavy lorry had passed" and "vibration lasted for around 5 seconds with a rumbling noise".

    "Data from the BGS seismic networks in the region were examined and signals consistent with a possible sonic origin were recorded at around 3.13/3.14pm on several stations.The observations received are similar to those which have been received previously for sonic boom," it said.
    "RAF Kinloss were contacted and have advised that there were two military jets on exercise in the area at the time."

    A spokesman said: "Data from the BGS seismic networks in the region were examined and a signal consistent with a possible sonic origin was recorded at approximately 15.13.
    "The reports received are also consistent with historical observations received for previous events with a sonic origin."

    The Vicar of Berwick, Canon Alan Hughes, told the Berwick Advertiser: "I was standing outside the vicarage and the next thing I knew people were piling out of the Church of Scotland and doors were rattling and people were coming out their houses and offices. It shook me to the core."

    Eyewitnesses who contacted the Berwick Advertiser and Berwickshire News offices reported that it had been felt in nearby villages on both sides of the border.

    http://www.guardian.co.uk/uk/the-northe ... north-east
     
  19. Synchronous

    Synchronous Devoted Cultist

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    I wasn't aware that sonic booms could last for five seconds. :?: :!:
     
  20. Jerry_B

    Jerry_B Antediluvian

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    IIRC, the effect of the sound barrier being broken lasts as long as the object is travelling at that speed.

    That said, this doesn't really seem to be consistent with a sonic boom - unless various witnesses are exaggerting the effects. This is what the British Geological Survey says about the event:

    On the afternoon of 12 January 2012, from around 15:20 UTC, the BGS began to receive information from the media, the police and many residents in predominantly coastal towns and villages in the southern Scottish Borders, Northumberland and Tyne & Wear, who reported that they felt what many had thought to have been an earthquake at sometime around 15:15 UTC.

    Data from the BGS seismic networks in the region were examined and signals consistent with a possible sonic origin were recorded at around 15:13/15:14 UTC on several stations. The observations received from the pubic are similar to those which have been received previously for sonic booms. The RAF were contacted and advised that there were two military jets on exercise in the area at the time. Several members of the public have also reported seeing two military planes flying in the area at the time of the occurrence. RAF Boulmer have since confirmed that a single Tornado GR4 fighter aircraft had completed a pre-planned supersonic sortie to RAF Marham in Norfolk.

    The extent of the effects of the sonic boom were felt over a distance of approximately 115 km, stretching from Eyemouth, Scottish Borders, to just north of Sunderland, Tyne and Wear. The locations furthest inland from where reports were received were Duns, Wooler and Bedlington. Reports described "roof rattled, floor bounced", "the whole house shook violently for a couple of seconds", "very heavy rumble, as if an absolutely massive lorry had passed right next to me", "the front door shook and the letterbox flapped", "door rattled on its hinges and floorboards flexed causing my chair to move whilst I was in it " and "vibration lasted for around 5 seconds with a rumbling noise".

    A sonic boom is the sound associated with the shock waves created when an object, such as an aircraft, breaks the sound barrier. An aircraft travelling slower than the speed of sound (~760 mph) creates a series of audible pressure waves that spread out in front and behind it. These waves travel at the speed of sound. As the speed of the aircraft increases these waves get closer together and at the speed of sound they merge into a single shock wave that starts at the nose and ends at the tail of the aircraft.

    The boom is created by the sudden increase in pressure at the nose and also as the pressure returns to normal at the tail as the aircraft passes. This can lead to a distinctive "double boom". The shock wave or boom continues to be generated for as long as the aircraft is supersonic, which is why they are typically observed along a long strip along the flight path of the aircraft.


    BGS Source

    Of Fortean note is that the locales are coastal, which may mean that something like a 'mistpouffer' or 'barisal gun' is to blame...
     
  21. Cavynaut

    Cavynaut Justified & Ancient

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    Boom in Grimsby as well.

    http://www.thisisgrimsby.co.uk/RAF-Big- ... story.html
     
  22. Cochise

    Cochise Justified & Ancient

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    I've heard booms like this myself - I thought there was an explanation, something like locally heated masses of air rising rapidly?

    Part of the problem is you can't tell if they are really loud and a long way away (which is what they sound like, but probably aren't since people out of the immediate locality don't notice them) or not-very-loud and very close.
     
  23. FelixAntonius

    FelixAntonius Justified & Ancient

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    There was an article on cefax, (Is it still cefax on digital?) a couple of days ago, that suggested that a Tornado aircraft was "authorised" to go supersonic over land, coinciding with the security rehersal for the Olympics.

    There is some discussion on this forum:-

    http://www.forums4airports.com/topic2251.html
     
  24. EnolaGaia

    EnolaGaia I knew the job was dangerous when I took it ...

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    SOURCE: http://ap.savannahnow.com/pstories/us/2 ... 1847.shtml

    Related article at: http://www.usatoday.com/news/nation/sto ... 53684366/1
     
  25. escargot1

    escargot1 Beloved of Ra

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    Here's a coincidence. About 10 minutes ago we heard two loud bangs which appeared to come from behind our house, roughly north. I put this on Facebook and my sister in law, who lives at the diagonal opposite end of town, replied that they'd heard them too!
     
  26. ramonmercado

    ramonmercado CyberPunk

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    Damn! Must adjust the mortar.

    Just shelling you.
     
  27. escargot1

    escargot1 Beloved of Ra

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    Watch your hostas, that's all I'm saying.
     
  28. EnolaGaia

    EnolaGaia I knew the job was dangerous when I took it ...

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  29. rynner2

    rynner2 Great Old One

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    Typhoon sonic boom behind mysterious bang reports - MoD

    A loud bang which sparked a deluge of calls to emergency services across a large part of England was a sonic boom from a Typhoon aircraft, the MoD said.
    Mystified residents across the West Midlands, Warwickshire, Oxfordshire, Somerset and Wiltshire reported hearing a loud boom at about 18:10 BST.
    The MoD revealed it was from a Typhoon responding to an emergency call.

    A Coventry resident called Gary said: "I thought somebody had thrown a brick at the house."
    He added: "When I went out there were quite a few people in the street wondering what it was."

    A sonic boom is created as an aircraft breaks the sound barrier, causing a high-energy shockwave.
    The Ministry of Defence initially said it was investigating what was behind the loud noise, but a spokesman later confirmed it was from one of two RAF Typhoons that had been launched following an emergency call from a helicopter.
    The MoD said the Typhoons, from the Quick Reaction Alert (QRA), based at RAF Conningsby in Lincolnshire, were scrambled and authorised to go supersonic after the small civilian helicopter had emitted an emergency signal.
    A spokesman said the frequency was only used when an aircraft was in particular trouble, such as a hijacking.

    He said the aircraft were already on their way to the helicopter by the time the helicopter pilot realised he was transmitting on the wrong frequency and switched to the correct one.
    "There was no actual threat to the civilian aircraft and they soon rectified their mistake," the MoD spokesman added.

    Richard Coglan, who was in Bath at the time of the incident, said: We saw the Eurofighter [Typhoon] circle the helicopter at very slow speed using full thrust just to stay up.
    "The helicopter was a small one and totally dwarfed by the typhoon we thought it was filming the Typhoon."

    Before the MoD explained the cause, a number of organisations said they were investigating the origin of the sound.
    Among them were Warwickshire Fire and Rescue Service, which received a flood of calls, and the British Geological Survey.
    Avon and Somerset Police also said they had received reports of a loud bang in the area.
    Some of those who heard it said the sound lasted a few seconds.

    Tom Sykes, from Highworth, Wiltshire, said: "I was sat at my desk doing some work and it felt like someone had put up a massive bass speaker at my feet.
    "I'm sure that they didn't move up in the air but they felt like they were with the vibration. I thought the window had come in."

    Terry Organ, from Oldfield Park, Bath, said he saw the Typhoon.
    "I thought [the sound] was a commercial airliner and then I thought 'no way'," he said.
    "We watched for a while and then we saw this aircraft appear and it was a Typhoon but it was flying amazingly slow and we thought it was going to come down.
    "It was doing really tight, slow circles and it suddenly put on full power and the noise was unbelievable, it was really blasting it out, and then it moved a bit further on and it did another slow turn.

    "My impression was that it was struggling to stay up but then he put on full power again and you just couldn't hear anything.
    "The noise was terrific, I imagine you could hear it for miles."

    Another person who reported hearing the boom, who gave his name as Dave, from Warwick, described the sound as "like sitting on a hard shoulder and a big lorry going past".
    "It shook the building and the windows popped," he added.

    It is the second time this year that a sonic boom has been created by a Typhoon aircraft.
    In January, the MoD confirmed that a loud noise heard by people across the north of England was caused by an RAF fighter jet breaking the sound barrier.

    http://www.bbc.co.uk/news/uk-england-17697328
     
  30. stuneville

    stuneville Amministratore principale Staff Member

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    I heard it, faintly - was in the garden at the time and assumed it was thunder. However my son was out and about with friends on higher ground and heard it much more clearly, and saw one of the Typhoons loop round a little later (we're only about 10 miles from Bath.) However, there's a more Fortean angle to it as well..

    From here
    Does raise the question as to why they scrambled two Typhoons to deal with an apparently distressed chopper - unless the Olympic security protocol is to shoot down potential-air threats - but the second Typhoon was quite clearly interested in the silver object. Could have been a solar balloon I suppose: there were lots of interesting atmospherics going on over this part of the world yesterday which may explain its odd trajectory. But the Typhoons involvement are what make this interesting :).
     

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