Hearing seismic surveying while underwater

Spearfishing off Cavo Greco,Cyprus can hear the Turkish ship "Barbaros" carrying out seismic surveys (illegally breaching the territorial waters of Cyprus). You can hear the first sound waves fired at 0:21 and subsequently every 10 seconds after that.
Definition of seismic surveying from wikipedia:
"Traditional marine seismic surveys are conducted using specially-equipped vessels that tow one or more cables containing a series of hydrophones at constant intervals....The seismic source, usually an airgun but other sources are available, is also deployed underneath the surface of the water and is located between the vessel and the first receiver. 2 sources are often used in order to achieve a fast rate of shooting....and the source is typically fired every 15 or 20 seconds.
en.wikipedia.org/wiki/File:Dia...

[@vinslungur]

Happens at 0:41 and 0:51 and 1:03. It sounds to me like chi-bub bub bub... hope this helps! You don't need headphones at all just turn up the volume.

[@AlGhifari7]

0:31

[@michaelhice7636]

And 0:20

[@idkigcasserole]

I think its the diver breathing

[@Dan-sz1lr]

The fishes look startled every time the air blasting occurs. Just imagine hearing this, every 10 seconds, 24 hours a day, 7 times a week in 5 months. bruh it'd be hell...

[@Beelzebubby91]

I’d purposely bite a fishing hook after that if I was a fish. Just horrible :(

[@Dan-sz1lr]

@@Beelzebubby91 truee bruhh

[@dca2334]

Exagerado jajajaj como se nota que no has participado en un sondeo sísmico

[@l.a.xgunner]

@@Beelzebubby91 naw you're brain going to melt before you can

[@captaincall25]

what are you talking about. the fish aren't at all phased.

[@humanbean5878]

Sounds are so much louder underwater...its pretty insane.

[@ejmtv3]

Water is denser than air so sound can travel more effeciently

[@cari1on]

I CANT HEAR IT

[@Dovahween]

I didn't realize how loud it actually is until I put ear phones in. Jesus that's terrifying and the fish seem to react to it each time it happens. Even under all that water it's still that loud.

[@SirKolass]

The fish didn't react a single time lol...

[@calebshearer6809]

water conducts sound better

[@zombieregime]

Unlike air which is squishy and slippy (molecularly speaking), as water is much less compressible (to the point its just easier to say its incompressible) you are effectively mechanically coupled to the thing making noise. The fun bit is thermoclines where you are in essence under a sound shadow from boats above or below the layer. Also there are bands of water at a certain salinity and temperature that act as sound tunnels, the sound will bounce off the top and bottom transition layers but travel very far laterally.

[@ianislavus]

"The biggest Seismic blasting vessel in the world coming in at a whopping 125 meters, travels around the ocean shooting an extremely loud air gun, 100,000 times louder than a jet engine into the sea every 10 seconds. They do this in search for oil and gases."

[@commanderrockwell1123]

@@bro9479You should do your own. He’s right. You’d be surprised how loud things can get down there due to water’s greatly increased compression wave conductivity. There’s very little energy loss in compression waves underwater due to the fact that water is non-compressible.

[@commanderrockwell1123]

@@bro9479 Then you understand that the decibel scale is logarithmic, with an increase in 10 decibels resulting in an increase in the value of a sound’s energy by a multiplier of 10. Therefore, 140db + 10db would be ten times as loud as 140db. Take this to 190db, and you get a value which comes out to, yes, 100,000 x the energy of a jet engine’s sound. It is worth noting that an increase of 10 decibels typically results in an multiplier of 2 times the perceived volume, but a multiplier of 10 x the energy of the sound itself. Hope this clears some things up for you. Sounds absurd, I’m sure, but feel free to verify my information yourself. I did so before posting this. Final note, I specify 190 decibels because that is the value I got when trying to find recorded decibel values for seismic airguns, however I also saw that some were deliberately brought up to 200 decibels for an experiment, which amounts to 1,000,000x the energy of a jet engine sound.

[@Porsche4life]

@@bro9479yikes your a pilot and diver? You should stop both. You realize even sonar can melt your body internally and kill you instantly with one ping when close up. Jet engines aren’t remotely loud compared to seismic blasting. Even the b-1 bomber or aircraft without his boots come close. Those you can withstand without headphones. Shockwaves from Seismic blasting can kill a human and marine life in a second. So he’s right. Look it up and learn some interesting facts.

[@bow_wow_wow]

​@@bro9479Congrats on being the biggest asshat on the Internet today

[@mswen1983]

@bro9479 How do you get yourself schooled that hard and not even get a diploma?

[@xxdelayedscarxx2304]

Imagine diving and hearing this, but you notice a shadow in front of you with water rushing out of the way.

[@IvanBeatzBorn808]

By the time it got that close the sound would kill you.

[@brae_t]

Seismic surveying is typically done to search for oil underground ect.

[@kyledilbert6424]

For anyone who can't hear it: I would recommend putting on some headphones, as your normal speakers might not be up for the task. You're listening for this echoing, crackly noise, like ice being broken on a frozen lake. You'll know it when you hear it.

[@careliz]

0:41 0:51

[@lionessfit3041]

I heard it even without headphones tho

[@FT-kv1cw]

Hear it with my phone speaker

[@FT-kv1cw]

@@careliz theres another at 1:03 but ur mvp

[@crownothecrow]

no actually you're wrong, the ice being broken noise is a common noise heard underwater what you're trying to listen to is the large echoing thumps coming from an airgun

[@NoJoshinJoshy]

Yeah I wasn't hearing it until I put headphones on. It's like very deep thuds echoing. Seeing the diver is pretty close to shore, this must be very devastating for any marine life near the blast zones.

[@m_swizzy22]

They would hardly run surveying at similar frequencies to sonar? I mean active sonar can kill people, if close enough, this was not close to active sonar, unless it’s high energy, then maybe, I don’t know, I’m more of an air focused person 😂

[@Delalcon]

These are detonations of explosions...

[@davidwebb2318]

It will only have any effect on anything that is within a few metres of the sound source.

[@korbanrose9550]

Nah, if anything it's hearing damage no matter how powerful the ping of the radar it won't kill it'll make you deaf to shit possibly and a headache but that technically would be all, unless it's active radar, active radar is louder and there for more harmful but for it to kill you, you'd have to be probably under or right in front of the sub, or really any where to the point where you could touch the sub even then the sheer force of the sub is dangerous enough

[@tomtrenter3208]

@@korbanrose9550 Do you mean sonar??? Radar makes no noise but it will cook birds if they sit up by the radar dish long enough.

[@bottle9759]

straight after the beep, you can hear a odd explosion sound, that keeps appearing every 10 seconds.

[@michaelmixon2479]

Imagine how it sounds to whales dolphins and other sea mammals that have unique hearing?

[@staplesock5549]

0:20 0:30 0:40 0:50 you can hear it in 10 second intervals

[@constantinexi6893]

Also 0:10, 1:03, and 1:13, it seems to drift after 0:20 by two to three seconds at the end, the timing must be slightly longer or something

[@cleanerben9636]

sea grass meadows are so gorgeous

[@watrgrl2]

You can definitely hear it with ear buds in. That is really scary sounding. That would be a good sound effect for an underwater sci-fi thriller movie. Kinda makes you wonder what’s coming out of the deep ocean after you!

[@daniel_john3167]

Put headphones on

[@salvadoran_uwu]

Sir, yes, sir! ¡Señor, sí, señor!

[@MrHog-fj7gr]

This sounds absolutely terrifying

[@non_so_che_cazzo_dire9768]

Wow, your speargun is amazing!

[@OfficialBlackBunnyIlustrations]

is that what seismic serveillance sounds like?!

[@HydroSnips]

Like how you’d imagine a lightning bolt might sound, very clear. No headphones required. Very low interval & low frequency - must be seismic imaging I guess, oil & gas. There’ll be a ship with a big streamer somewhere that’s causing it. Blurb says this is southern Cyprus and since the mid-00’s they’ve been talking about exploring gas fields around there & eastern Med, already carving it into blocs, guess this is hearing some of exploratory work.

[@randomassname6149]

Put on headphones and skip to :21.

[@davidwebb2318]

The fish didn't seem bothered

[@Beelzebubby91]

If you look really close you can see the fish jump a bit at every explosion. Like a startle

[@tomtrenter3208]

@@Beelzebubby91 The fish are NOT in sight when the boom occurs, the cameraman is waving the camera around too much.

[@indridcold8433]

A seismic air gun blast can reach 250 decibels. It would easily liquify a whale at close deployment of the device.

[@steverich1518]

@Elias Håkansson shut the fuck up you waste of oxygen

[@erikk2770]

@@steverich1518 woah calm down kid

[@steverich1518]

@@erikk2770 Why would I calm down about the needless slaughter of ocean life just for personal gain? Use your brain, it’s there for a reason

[@CEOofSleep]

@@steverich1518 igga

[@rodmoore2252]

Not so.. a 120inch gun only projects 115 Db.

[@theashman7836]

Heard this out in Fiji during Scuba, insanely loud.

[@uberlol2228]

it kinda just sounds like a dumptruck moving around my house

[@salvadoran_uwu]

0:41 0:52 1:13

[@markokozaric]

Finally somebody smart..

[@boadventures39]

Nice water very clear

[@bradleycooke3514]

Imagine the current started to go out to sea fast taking him with it 😳😳

[@mattheoswho1010]

Never freedive alone

[@imbasing]

Spearfishing

[@sparkorisme9253]

i don't know why they had to speed up the bloop when theres evidently plenty of underwater noises that are way scarier in realtime

[@Translucentism]

For those of you who cannot hear it - your speakers/headphones are terrible. It's a very loud explosion, but it's extremely low in frequency.

[@devenirelectronicien5121]

Yes this sounds very much like seismic source shooting, but for the people commenting, this is similar to lightning in the air, yes this is loud, but i have never seen any fish dead floatting at the surface after a shot, there are also, people onboard who's task is to check for visible wild life activity nearby ( dolphins, turtles, whales,etc...). By day, this remains to be done visually, by night they have sensors at sea to record for "clicks" from dolphins and whales, if detected, shooting is aborted til they get far enough from the source, these people are known as "mammal watchers", seismic companies are well aware of noise disturbances, and spend thousands of $$$ trying to minimize the environmental impact. Before a survey goes, survey locations have already been assessed for potential wild life activities, fishing activities, etc..., and only the countries deliver permits to perform seismic surveys if they choose to, with tons of rules to follow.

[@marioandmichellesantiago2509]

Put in earbuds holy cow its scary

[@bido8176]

Any idea how far away the blasting was occurring from your location?

[@luisandre2750]

It looks like a thunder

[@aot_whynotsub1119]

Your english gives me aids wtf

[@nikolvitanza4746]

@@aot_whynotsub1119 yeah same. Wow

[@Kasejeb]

@@aot_whynotsub1119 HAHAHAHAHA

[@sebaniaballproductions6130]

I Heard something exactly like this in St Lucía VeRy loud

[@tomtrenter3208]

Amazing amount of "factual information" presented here by trained/ experienced sonar techs.scientists and engineers.

[@chadmerkley9465]

Where are you diving? That's clear!! :)

[@417Owsy]

Cyprus

[@sombatwarner7344]

I can hear a few bubbles from the breathing apparatus.....

[@ethanwasme4307]

Every 10 seconds you can hear it, it's safe to crank your volume all the way up (just don't forget to turn it down!)

[@randomentertainment8927]

You gotta wear headphones to hear it

[@stevequate1797]

Something is going on there isn’t any marine big fish life anywhere around notice that dead giveaway

[@humanbean5878]

Just waiting for Godzilla to swim by...

[@thej7362]

That sounds scary

[@ChillFrost]

Is the seismic surveying sounds like a robot?

[@Wheely_Dan]

Holy crap

[@kiedranFan2035]

I hear this constant background sound like someone's frying bacon. Anyone know what that is?. I keep hearing it in the water myself too

[@nikolasmacedonites917]

It's the sound of the oxygen bubbles

[@tomtrenter3208]

@@nikolasmacedonites917 It's not "oxygen bubbles", it's snapping shrimp. Frying bacon is a very good description of them.

[@yanelinabarca5848]

Nice!!!!

[@OutletFlow]

Algorithm be like: watch this.

[@loganjovanovich3304]

Scp-3000? That you?

[@sairamr6886]

It is like that water cup scene in Jurassic park.

[@sponduli]

damn the ocean bumpin 👌

[@LawatheMEid]

Which second in this video?

[@namenotshown9277]

how far away was the source of the sound at the ship?

[@leezanda8430]

The sound pollution human created is crazy.

[@imd4974]

[ Nemo Disliked This ]

[@MrChris76ize]

That's really really nothing compared to what we did elsewhere

[@alibalala20091]

Sonar the military uses is typically infrasonic.. way too high for any person to hear..not sure why they would be using this frequency because it would easily give away a location if they were training or trying to remain hidden (training or exercise) this is very odd

[@aidle]

This is an airgun noise not a sonar?

[@tomtrenter3208]

Active sonar is easily heard by human ears!

[@oldskoolordie]

The bangs are the large air guns that replaced dynamite. This creates the echo and the sensors pick up the return generating an image. Most surveys had an environmental inspector with them to check for whales, dolphins etc. It costs millions per day so unlikely they’ll stop tbh. Did you see that whale? No sir.

[@peacetheory5544]

It sounds like a fleet of WW 2 bombers

[@Glazed4Dayz]

Don't those thumps attracts sharks?

[@givepassword]

They can't attract sharks because its so loud. The actual ship could be hundreds of miles away from him.

[@doncorleone5061]

am i the only one that seen jimi hendrix?

[@chadwicks_guitar]

I thought it was Prince...

[@JoeGrunt9]

bro thats godzilla

[@VuleProductions]

Wtf happened at the end 💀

[@OfficialBlackBunnyIlustrations]

that shit sounds absolutely fucking terrifying!

[@the_13ct70]

Near Godzilla home

[@utleychase7]

Jesus fucking christ. We need to stop this

[@vomiie]

There's a petition to stop it search up. The end of the arctic. And in the description you will see a petition to stop it. Sadly I'm to young to sign it. :( but you can I'm guessing :) so do so

[@colinhunter3093]

I don't understand whats wrong with seismic air guns?

[@cayleb2323]

I didn't hear anything

[@spinos4ru553]

Use headphones

[@charliestevenson1029]

Actually this is nothing compared to what they used to do. Think of 50 lbs of dynamite overboard - it's what they did mid-70s in the North Sea. I know because I worked on that data.

[@BanditoGames]

Headphones on you can actually hear how scary it is. Sounds like a leviathan off Subnautica fr

[@ethanwasme4307]

Those fish definitely look disorientated... How the fuck is this even a thing!

[@TheSonic10160]

Currently there is no better way to map the sea floor. Invent one.

[@run6run751]

Ikr. Hate these libtards that complain about everything yet don't have a solution. I hate this! I hate that! But I dont have a solution. What do you think we should do?

[@lukaellis1255]

This is disgusting how our world has become, choosing money over our precious planet!

[@oriokin]

Kentucky Fried Chicken What does surveying have to do with money?

[@speardfrog1]

its for oil and gas...

[@daddydoodog6058]

If your so disgusted than stop buying petroleum products. Let's see how long that lasts...

[@MrRooibos123]

The seismic surveying does nothing. It emits a beep which allows it to map the ocean floor.

[@copypaste3526]

There's no money without earth.

[@frasssaeed8695]

I don't hear a thing.

[@Dalpha101]

Listen at 0:22 and every 10 seconds it goes off. Its not supposed to be super loud under water, and he was further away from the ship

[@jackcurtis9002]

Wear headphones. You can clearly hear it.

[@frasssaeed8695]

D-alpha101 That doesn't make any sense. Things are supposed to be much louder underwater because liquids transfer sounds much better than gases do.

[@AtomicTankGirl]

It's the thing that sound like a heartbeat.

[@jacklynsalleh7749]

Mike Lins yup...me too

[@taylorwelsh149]

I can hear it..doesnt seem to bother the fish

[@reggieromero8828]

What does a bothered fish looks like to you? This directly affects them. Imagine hearing a blast in your neighborhood every ten seconds for straight wreks or months even. It affects marine species' way of life, hunting and mating.

[@SirKolass]

_Pa pa pa poow_

[@justincook1736]

It's audible without headphones, humans and their search for a fucking weasels profit.

[@KDill29]

What are you on?

[@aot_whynotsub1119]

What a loser I can tell your have no money kid

[@17patriotisanorthografos8]

I think that they are dynamites 🧨 from stupid fishermen …you are very lucky!!!

[@el_contador0181]

That’s a submarine sonar

[@tornadotayte]

You're an idiot

[@el_contador0181]

@@tornadotayte I wasn’t talking about your mom bro. I was talking about a real submarine 🤦🏻

[@tornadotayte]

@@el_contador0181??????

[@notjustanotherguy739]

That's horrible. But spear fishing is also horrible. Just leave the fishes alone.

[@domo8461]

Not just another guy Spear fishing can be very good. especially if it's Lionfish you're after. Lionfish are a very invasive species so it's good to have a sport like spear fishing to control them.

[@LSPD1909]

Fish don’t feel pain my friend and I’m sure he’s eating them. Unless he’s hunting invasive species like lion fish

[@LiterallyGod]

Something else is horrible. You breathing is horrible. Just leave the air for the innocent creatures of earth who need oxygen to survive. Your literally stealing their lifeline with every breath you take. Stop breathing your robbing our environment of precious resources!

[@milkitymilk2961]

At least he isn't using a massive boat

[@mrpeaches151]

Please look into valentine Thomas she is an advocate for aquatic wildlife conservation and has a solid argument that spear fishing for food is the equivalent of hunting your food in the woods as opposed to factory farming