Submarine sonar scares divers

Diving with Stuart Cove’s in Nassau, Bahamas at the Pumpkin patch. We heard a high pitched squeal. It startled our guide. The squeal could be heard on the surface also. Not sure if it was submarine or not. If you have any idea let me know in the comments.

[@colliecop]

Lmao I love how you can still hear the diver go “What the fuck was that?” 😂

[@donrane]

Like Kenny was an adult with a diving license.

[@islamisthetruewaytogod6812]

Hello ! May Allah protect and guide you to his light and happiness in this life and the hereafter, God bless, Ameen. Excuse me for giving a little presentation of Islam, because it is very misunderstood nowadays, especially on those « Antichrist's » times, where media and politics are mixed to distort history and truth. And terrorists (puppets of the Antichrist) who misinterpret verses, out of ignorance and political motivations, and take them out of historical context (just like radical atheists do by the way), don't help either. Thank you very much for your time. Islam is an arabic word that means the Surrender to the One and Only God, our Creator, Protector, Provider, who gives us life and all that we have, we are safe and sound by his will and grace, we are His and to Him we return, and we have to thank him in this trial life by submitting to him by our free will, or later in the Day of judgment when it's too late to save our own skin. Islam was the original Religion descended to earth from heaven with Adam and Eve (peace and blessing be upon them) in the beginning of humanity. and was passed to people with the succession of the 124 000 prophets and 315 messengers of God to all nations and civilizations since, passing by Noah, Abraham, Isaac, Jacob, Ismaël, Joseph, Moses, Aaron, Joshua, David, Solomon and Jesus (Peace and blessing be upon them) during the history of mankind, the last replaces and completes the previous, until the succession of the last messenger of God fourteen centuries ago, Muhammad (Peace and blessing be upon him) to complete the noble morals of all mankind, to bring humans and jinns out of darkness into light, and to purify people's religion and belief from corruption and polytheism, and return it to purity and true monotheism, like it was in the times of the prophets (Peace and blessing be upon them). Many Religions that we know nowadays, at their beginning were true and under Islam, initiated by one of the prophets of God, but their original teachings, history and scriptures have been corrupted over time with falsification and polytheism, or lost and replaced with false ones. That's why Islam is the only Religion accepted by God nowadays, which consists in bearing witness that there is no god besides Allah (God in Aramaic, the original language of Jesus and the Gospel), and that Muhammad is His servant and messenger, just like Jesus and Moses and others are His servants and messengers. Never a messenger of God said he was God or literally son of God, it was the people after him who changed the words of God and corrupted the Religion. God is unique and absolute, He does not need to have a family and sons or to associate anyone else with His kingdom, He can simply create whatever He wants, everything belongs to Him, and to Him everything will return. Allah said in Surah Al-Mu’minun : “God has never begotten a son, nor is there any god besides Him. Otherwise, each god would have taken away what it has created, and some of them would have gained supremacy over others. Glory be to God, far beyond what they describe. The Knower of the hidden and the manifest. He is exalted, far above what they associate. (91-92 / Translated by ITANI). Allah means the one and only God, the God of all prophets and creatures, the creator of the universe and mankind, and the Master of the Day of judgment, where our destiny, Hell or Paradise, is decided based on our faith and deeds in this trial life, and above all, Allah's mercy. Allah said in Surah Al-Ikhlas : In the name of God, the Gracious, the Merciful. Say, “He is God, the One. God, the Absolute. He begets not, nor was He begotten. And there is none comparable to Him.” (1-4 / Translated by ITANI). Allah said in Surah An-Nisa : O FOLLOWERS of the Gospel! Do not overstep the bounds [of truth] in your religious beliefs, and do not say of God anything but the truth. The Christ Jesus, son of Mary, was but God's Apostle - [the fulfilment of] His promise which He had conveyed unto Mary - and a soul created by Him. Believe, then, in God and His apostles, and do not say, "[God is] a trinity". Desist [from this assertion] for your own good. God is but One God; utterly remote is He, in His glory, from having a son: unto Him belongs all that is in the heavens and all that is on earth; and none is as worthy of trust as God. Never did the Christ feel too proud to be God's servant, nor do the angels who are near unto Him. And those who feel too proud to serve Him and glory in their arrogance [should know that on Judgment Day] He will gather them all unto Himself: (171-172 / Translated by Muhammad Asad). Allah the Most Merciful said in Surah Ali-Imran : Behold, the only [true] religion in the sight of God is [man's] self-surrender unto Him; and those who were vouchsafed revelation aforetime took, out of mutual jealousy, to divergent views [on this point] only after knowledge [thereof] had come unto them. But as for him who denies the truth of God's messages - behold, God is swift in reckoning! Thus, [O Prophet,] if they argue with thee, say, "I have surrendered my whole being unto God, and [so have] all who follow me!" - and ask those who have been vouchsafed revelation aforetime, as well as all unlettered people, "Have you [too] surrendered yourselves unto Him?" And if they surrender themselves unto Him, they are on the right path; but if they turn away - behold, thy duty is no more than to deliver the message: for God sees all that is in [the hearts of] His creatures. Verily, as for those who deny the truth of God's messages, and slay the prophets against all right, and slay people who enjoin equity - announce unto them a grievous chastisement. It is they whose works shall come to nought both in this world and in the life to come; and they shall have none to succour them. (19-22 / Translated by Muhammad Asad).. Salam (Peace) --------------------

[@tachytack]

​@@islamisthetruewaytogod6812cringe

[@troshs]

That made me laugh too

[@IIIlIl]

​@@islamisthetruewaytogod6812non sequitur

[@aludamin]

Imagine being a whale and constantly hearing the humans underwater shenanigans, has to be maddening.

[@ZSmith-yy4lv]

to be fair, whales are the loudest creatures on earth, so do they really have a right to complain? According to google, Sperm whales can produce up to 230DB with sonar going up to 235DB

[@LocutusMoW]

Supposedly Whales will accidentally beach themselves trying to escape from ship sonar sounds. Sad.

[@coumarin]

i believe whales themself have sonar clicks of around 200DB, but there are a ton of ships so yeah prob pretty annoying

[@claymorexl]

#TeamOrca

[@frednone]

The thing is active sonar is rarely used, as it advertises where you are to the whole ocean. I have to wonder what is going on to get two pings so close together.

[@FirstNameLastName-gz1sw]

Hearing sounds underwater is freaky. I was snorkeling in Hawaii and went a fair ways out with a few other people. I dove down to look at the fish and as I was about halfway down I heard a bunch of whale calls. It sounded like it was coming in from every direction. I knew what they were but it really freaked me out. It was an instant reminder that I was not alone, and that the blue void I saw when I looked out, stretched out further than I could comprehend.

[@afluffypinecone3577]

You should be glad you weren't closer, whales can make sounds so loud they blow out eardrums and can literally vibrate you to death

[@skeloluke4967]

@@afluffypinecone3577 thats sperm whales you’re talking about but it is correct that they can vibrate you to death

[@skeloluke4967]

This is the reason I have thallasophobia

[@aleixb688]

@@skeloluke4967 jajjajaj

[@georg2010cz]

@@skeloluke4967 I was thinking the same lol, thallasophobia intensifies at these kind of vids

[@Wulfjager]

I've swam in a large lake while speed boat races are taking place about 5 miles away. I couldn't hear a thing outside of the water but upon submerging my head it sounded like the engines were a football field away. It's terrifying how well sound travels underwater

[@GerOffYeWeeBastard]

In a sailboat, when below the water line you can hear the sound of ship's screws turning. And believe me it's better than any alarm clock as you learn real fast that many don't practice good watchkeeping and so you want to figure out in a hurry where they are and which direction they are going.

[@charleschristianson2730]

The football field is not a unit of measurement.

[@chaddionne4080]

@@charleschristianson2730 it is if you have a brain

[@PartikleVT]

@@charleschristianson2730 actually, as it is a standardized size, it does serve as a unit of measurement for length, width and area. Edit: Ya'll really went and blew up the comment section

[@quadnation485]

@@charleschristianson2730 yeah what he did^ ya pine cone

[@DivingHawker]

It's so eerie to hear such an artifical sound in the middle of nowhere, with the echos and all.

[@Ner-vod]

Especially since you have no idea where it's come from. It's just THERE. Everywhere lol. All around you

[@indridcold8433]

I hear jet planes where I live. I am very far from any sort of settlement. My closest neighbour is 3 kilometres from me. My second closest is 10 kilometres from me. On extremely rural hikes where I am easily 50 kilometres from any settlement, I hear jet planes also.

[@melissasalasblair5273]

Exactly

[@vermathrax]

Look up the sound of a white bell bird

[@chthulu27]

I've heard that getting pinged by active sonar in a submarine is one of the most terrifying things you can ever experience if it happens at close range. Don't know if it's true, but I've heard it. Makes the whole sub vibrate or something.

[@glashoppah]

Diving in Okinawa and experienced an earthquake at 60 feet. Sounded like a bell the size of a mountain, with a definite *thump* against our chests. Really impressive.

[@mumsdadsbiggestfan5698]

Hey this has nothing to do with diving I know but what year were you talking about? I grew up in Okinawa but, although in a hot area for earthquakes, never actually felt one myself. My family moved there a month before the large 2011 earthquake/tsunami, but I was only 4 and don't remember anything or if the island was even affected. Just wondering if an earthquake can be felt better on land or underwater. Must be horrifying!

[@glashoppah]

@@mumsdadsbiggestfan5698 Would have been on or around September 9, 2019, mid-day. I suspect it wasn't much if you were on dry land, but underwater where sound carries, it was quite dramatic. You grew up in Okinawa? What a wonderful place!

[@nooneisback]

I love that you can hear distant echoes seconds after the main sound.

[@theone707]

This is what sonar is about (The Echo)

[@petersmythe6462]

Yes. That's kinda what it's for.

[@smoke8220]

Hi PlanetSide 2 logo

[@nicholask7913]

That usually means the source was really close. Within a mile or so and shallow water.

[@humphreybumblecuck5151]

Speed of sound underwater is way faster than air. Quick echo

[@stephenhoward6829]

If it was actually a sub, you wouldn't have heard sonar. Subs do NOT casually "Yankee-search". Surface-ships, on the other hand, do it rather frequently. THAT was definitely a surface sonar, have heard that too many times. Being afraid of sonar isn't a bad thing, as at high power, it can F you up if you're in the water. Cruisers use it to prevent underwater approaches while anchored-out overseas.

[@SireSmitty]

Some subs will "yankee-search" around homeland to prevent smugglers from bringing drugs or other illegal items/people into the country

[@woyzattwitch7267]

Submarines use sonars even when surfaced.

[@C1evum1]

Lol sonar can make you a human mush

[@ornat9145]

It's also really impressive how you hear it echoing

[@ireallylikethe2000gt]

it can boil water in a one meter radius when at full power on some sonars

[@dcvendex4166]

i love how you can audible hear the "the fuck was that???" even through the mask

[@sforza209]

Why wouldn’t you be able to hear it?

[@atcq1277]

Deep ocean is usually 7 earth atmospheres in pressure, so sound can still travel.

[@rhino2960]

subs don't typically do active sonar pings, their aim is to see without being seen, sending out an active ping is like holding up a bright road flare in a pitch black room, this is probably a surface ship either testing its sonar, or doing a training exercise.

[@sprolyborn2554]

or you know, a sub near home waters doing an equipment check? its not like a US sub is worried about being heard right off the US.

[@briansonnenfelt7125]

Yea it’s 100% a surface ship. It’s also not a sub pulse train which gives it away. Plus the DB at which it was transmitted at means it’s reasonably close, and that water is too shallow for a Sub to be in.

[@pigeon2165]

@@sprolyborn2554they are tho. If you can find location where the sub has been you can find there patrol waters. This could be a surface sonar. Sub usual use sonar passively

[@sprolyborn2554]

@@pigeon2165 right but thing is, what enemy surface ships are sitting 50 miles off the coast of the mainland US listening for a submarine? Not to mention departing a naval base isn't a patrol route.

[@eklhaft4531]

They have to use the active sonar sometimes. Otherwise there would be no point having it on board.

[@simula152]

You can hear surface ship sonar from up to 100 miles away, and within like 50 miles it can affect you. It can also blow up your lungs and do alot of nasty stuff so ships rarely activate it near the coast in peacetime to avoid killing any divers and maritime animals.

[@Falcons8455]

i feel like that is something the public needs to be warned about

[@skully4592]

@@Falcons8455 yeah but how do you explain that to the public like don't dive at this time since we will be using our sonar that could kill you it also kinda defeats the purpose of a submarine since everyone knows when it's active

[@Falcons8455]

@@skully4592 I value human life more than you I guess lol.

[@colegilliam2379]

@@skully4592 its not a submarine doing this. Likely a surface ship

[@texanwokey8366]

@@Falcons8455 that's not valuing human life, that's just being unreasonable.

[@ZeeJBC]

0:49 “The fuck is that?”😂

[@Buconoir]

Love it!! Yeah, you got pinged. Actually, the DESTROYER that went active was probably a good bit away from you, since sound propagates through water for a long ways. The tones you heard and the changes in frequency and pulse are familiar to any sailor on today's USN destroyers since this can be heard throughout the ship's hull whenever we go active. If she was closer that sonar can mess you up. In port we can use it for antidiver purposes since anyone trying to get close to us underwater would FEEL it and come up with one button push.

[@C1evum1]

They would be dead if they tried to get up close and ye get active they would probably be human mush lol

[@FormerGovernmentHuman]

Is this only on USN vessels or is it on commercial as well? We did a boarding action a single time in training since that’s not really our purview it would be the teams job, but we came on zodiacs. I am curious if the teams have an SOP for approaching warships from underwater to deal with sonar or do you just hope you aren’t compromised or hope they don’t start up?

[@efesezer8206]

what do you mean by mess you up??

[@efesezer8206]

@@C1evum1 what do you mean how sonar can make you mush

[@jobber3500]

@@efesezer8206 sonar is incredibly loud, and powerful. The sound waves propagating underwater could theoretically kill a diver if they were close enough to the boat, however it has never happened before.

[@brickson98m]

Wow, that’s so loud and clear. I didn’t expect it to sound like that. Sound traveling underwater is crazy. It’s interesting how many sounds like sonar, a boat’s motor, etc… travel like crazy underwater, but if you’re in a pool with a friend, one on one side, one on the other, you can barely hear each other if you yell underwater, if at all.

[@andymiller3366]

That because you're voice starts in the air when you yell out it has to go into the water which is not easy for it to do

[@anonydun82fgoog35]

Hollywood ruined you, and many others.

[@Teesquared00]

As the person above said, when waves change medium sometimes a lot of the energy can be lost. If you're on one end of the pool and a friend is on the other though, you could tap something hard against the side of the pool, or knock two rocks together, and the person on the other side of the pool would hear it like its right beside their head.

[@Starbuckin]

Yeah, try submerging a speaker in your pool and play music on it, it can be loud enough on the other side to run you out of the water!

[@ElectroAtletico]

Convergence Zones allow the sound to travel long distances.

[@lsq7833]

The loudest noise one can hear in the air is 194dB, which is ear shattering. The loudest noise that can be heard in the water is 270dB. This is hundreds of times stronger (logarithmic scale) and is quite simply deadly.

[@drozcompany4132]

If you're talking acoustical power, the difference from 194 to 270 dB would be about 39 million times stronger.

[@Killbayne]

​@@drozcompany4132 eh, a band aid and kiss will fix it

[@amalgamatenull5167]

Instant deaf vs instant death

[@sampsqwantch4612]

​@@amalgamatenull5167nice

[@islamisthetruewaytogod6812]

Hello ! May Allah protect and guide you to his light and happiness in this life and the hereafter, God bless, Ameen. Excuse me for giving a little presentation of Islam, because it is very misunderstood nowadays, especially on those « Antichrist's » times, where media and politics are mixed to distort history and truth. And terrorists (puppets of the Antichrist) who misinterpret verses, out of ignorance and political motivations, and take them out of historical context (just like radical atheists do by the way), don't help either. Thank you very much for your time. Islam is an arabic word that means the Surrender to the One and Only God, our Creator, Protector, Provider, who gives us life and all that we have, we are safe and sound by his will and grace, we are His and to Him we return, and we have to thank him in this trial life by submitting to him by our free will, or later in the Day of judgment when it's too late to save our own skin. Islam was the original Religion descended to earth from heaven with Adam and Eve (peace and blessing be upon them) in the beginning of humanity. and was passed to people with the succession of the 124 000 prophets and 315 messengers of God to all nations and civilizations since, passing by Noah, Abraham, Isaac, Jacob, Ismaël, Joseph, Moses, Aaron, Joshua, David, Solomon and Jesus (Peace and blessing be upon them) during the history of mankind, the last replaces and completes the previous, until the succession of the last messenger of God fourteen centuries ago, Muhammad (Peace and blessing be upon him) to complete the noble morals of all mankind, to bring humans and jinns out of darkness into light, and to purify people's religion and belief from corruption and polytheism, and return it to purity and true monotheism, like it was in the times of the prophets (Peace and blessing be upon them). Many Religions that we know nowadays, at their beginning were true and under Islam, initiated by one of the prophets of God, but their original teachings, history and scriptures have been corrupted over time with falsification and polytheism, or lost and replaced with false ones. That's why Islam is the only Religion accepted by God nowadays, which consists in bearing witness that there is no god besides Allah (God in Aramaic, the original language of Jesus and the Gospel), and that Muhammad is His servant and messenger, just like Jesus and Moses and others are His servants and messengers. Never a messenger of God said he was God or literally son of God, it was the people after him who changed the words of God and corrupted the Religion. God is unique and absolute, He does not need to have a family and sons or to associate anyone else with His kingdom, He can simply create whatever He wants, everything belongs to Him, and to Him everything will return. Allah said in Surah Al-Mu’minun : “God has never begotten a son, nor is there any god besides Him. Otherwise, each god would have taken away what it has created, and some of them would have gained supremacy over others. Glory be to God, far beyond what they describe. The Knower of the hidden and the manifest. He is exalted, far above what they associate. (91-92 / Translated by ITANI). Allah means the one and only God, the God of all prophets and creatures, the creator of the universe and mankind, and the Master of the Day of judgment, where our destiny, Hell or Paradise, is decided based on our faith and deeds in this trial life, and above all, Allah's mercy. Allah said in Surah Al-Ikhlas : In the name of God, the Gracious, the Merciful. Say, “He is God, the One. God, the Absolute. He begets not, nor was He begotten. And there is none comparable to Him.” (1-4 / Translated by ITANI). Allah said in Surah An-Nisa : O FOLLOWERS of the Gospel! Do not overstep the bounds [of truth] in your religious beliefs, and do not say of God anything but the truth. The Christ Jesus, son of Mary, was but God's Apostle - [the fulfilment of] His promise which He had conveyed unto Mary - and a soul created by Him. Believe, then, in God and His apostles, and do not say, "[God is] a trinity". Desist [from this assertion] for your own good. God is but One God; utterly remote is He, in His glory, from having a son: unto Him belongs all that is in the heavens and all that is on earth; and none is as worthy of trust as God. Never did the Christ feel too proud to be God's servant, nor do the angels who are near unto Him. And those who feel too proud to serve Him and glory in their arrogance [should know that on Judgment Day] He will gather them all unto Himself: (171-172 / Translated by Muhammad Asad). Allah the Most Merciful said in Surah Ali-Imran : Behold, the only [true] religion in the sight of God is [man's] self-surrender unto Him; and those who were vouchsafed revelation aforetime took, out of mutual jealousy, to divergent views [on this point] only after knowledge [thereof] had come unto them. But as for him who denies the truth of God's messages - behold, God is swift in reckoning! Thus, [O Prophet,] if they argue with thee, say, "I have surrendered my whole being unto God, and [so have] all who follow me!" - and ask those who have been vouchsafed revelation aforetime, as well as all unlettered people, "Have you [too] surrendered yourselves unto Him?" And if they surrender themselves unto Him, they are on the right path; but if they turn away - behold, thy duty is no more than to deliver the message: for God sees all that is in [the hearts of] His creatures. Verily, as for those who deny the truth of God's messages, and slay the prophets against all right, and slay people who enjoin equity - announce unto them a grievous chastisement. It is they whose works shall come to nought both in this world and in the life to come; and they shall have none to succour them. (19-22 / Translated by Muhammad Asad).. Salam (Peace) --------------------

[@ParallelSyntax]

I went to a swimming pool with a friend who had a Casio digital watch. Although it’s only half Olympic size (or maybe 2/3, I forget), I could CLEARLY hear him playing with the setting from it underwater when we are at complete opposite ends, even with all the kids and people splashing about. Truly mind-blowing, but makes sense when molecules that carry the sound are so close together in liquid.

[@thomasharris9059]

Fascinating. The speed of sound in water is about five times faster.

[@bertiesaurus]

Me and my brother used to do this in the sea all the time and see how far apart we could be. Casio F91W

[@Cheesepuff8]

Yeah U can totally see how So at messes up animals like whales and dolphins

[@HavardBergs]

You just unlocked a core memory for me. I used to do this shit all the time in the swimming pool as a kid.

[@Eargesplitten-Loudenboomer]

If you're diving boats sound like they're right on top of you, it's pretty spooky.

[@jonhandel8159]

Submariner here. That is not a submarine's active sonar. That is from the SQS-53, carried on many different classes of surface warships.

[@Eadweard76]

I'm originally from the Midwest never been to the Ocean until I went to Miami. Went to one of the beaches to swim. First thing I noticed was damn it's salty. But the thing that got me was this very high pitch sound. It was constant. I have no idea what it was. I was there for an hour or so and I could tell when boats go by but there was always this high pitch sound. Is that normal back ground noise of the ocean? Or something else. Never heard anything like that in Lake Michigan.

[@cloudyaperture4910]

Most likely participating in some kind of test or evaluation at AUTEC on Andros Island

[@BenHutchinson321]

Were you underwater hearing it? Or were you above water when you heard it?

[@jonhandel8159]

​@@BenHutchinson321heard it many, many times in sonar.

[@Eadweard76]

@@BenHutchinson321 underwater

[@Am-rh2gl]

The ending looks like you’re low on health in a video game lol

[@ftniceberg874]

You just gave me subnautica flashbacks 🤣😂

[@DemonPig666]

Why are SONAR sounds so spine-chilling (and spine-destroying)

[@m3redgt]

because they can kill you if you're close enough.. and that can be pretty far

[@CratsonTheGuy]

Sound travels well underwater, the ping is so loud it cab disorient you, whicg can drown you (if you don't have a scuba gear)

[@SKYCRAFTER2003]

Congrats on 69 likes

[@OneBiasedOpinion]

Because at 194 decibels, sound waves become shockwaves. And military-grade SONAR tops out somewhere around 235 decibels at point-blank range and can be as loud as 140 decibels (louder than a full-volume live rock concert) up to 300 miles away from the transmitting unit.

[@DemonPig666]

Holy shit I just checked how did I get 200 odd likes

[@theletsplayer9503]

Something hauntingly beautiful about hearing an almost otherworldly screech in an serene almost equally alien enviorment

[@Xtoxinlolinecronomicon]

Until it literally turn your brain into pulp if you are too close.

[@senakuma9985]

I don't know about beautiful. Hauntingly, ABSOLUTELY

[@GoatPersonThing]

i wouldnt call a sound that can melt your brain if youre within 300 miles of it, and boils all the water within a few feet around it beautiful

[@lunarro7]

@@GoatPersonThing i would

[@squigeon7959]

Yeah beautiful until it starts literally killing marine life

[@braveheartbob3473]

00:46 for the impatient ones

[@benditobendito976]

Ty

[@senakuma9985]

Bro that's like 46 seconds 💀

[@braveheartbob3473]

@@senakuma9985 exactly

[@l.a.xgunner]

There is a US Naval base close to Nassau. Definitely could be active sonar testing.

[@shawnmartinisko725]

You talking about autec in andros

[@tox1c212-W]

Damn in my times it was British warships only in the coast of Nassau… how times change

[@cloudyaperture4910]

Probably was a surface ship testing it's sonar. AUTEC, or the Atlantic Underwater Test and Evaluation Center is on Andros Island just across from where you were diving. In between the two islands is what's known as the Tongue of the Ocean, which drops down to 6,600 ft and is used for all sorts of testing.

[@jimryan4056]

Probably the best explanation posted. Thanks.

[@Entropy512]

I was wondering if this might be near AUTEC, you confirmed it. Thanks! Could possibly have been sonobuoys instead of shipborne sonar. Edit: Another commenter more familiar with how particular sonars sound said SQS-53 shipborne.

[@bundles1978]

AUTEC Bouy is awesome for fishing, until a submarine shows up and runs you away. Grew up fishing the bouy. done a few shark dives there too with Stuart Cove. definitely the scariest dive you can do, no bottom, and a lot of current. also the chain runs to the bottom, and dissapears into nothingness. i call it the "shark blender" cause if you look up, you are in the middle of a swirl of sharks cirlcing the bouy. its pretty epic. this is an opean ocean dive, so the wildlife is out in full force.

[@hambone950]

@@bundles1978 what does the sub do??/ also does the bouy cause "health issues" like others stated with sonar, if it goes off and your by it?

[@bundles1978]

@@hambone950 the bouy does nothing really, its more of a placeholder. but the chain that goes 1000s of feet to the bottom grows marine life on it which attracts more marine life. for the most part, the subs test things out there. they never provide details, but its things like torpedos and sonar testing. they have a base a few miles away in Andros

[@mister_stang]

Fun fact: sonar can hurt you even 100 miles away. There's a solid chance the vessel that sent that ping is quite far away. Edit: Wrongly stated 160 miles, I got kilometers and miles confused (it's 100 miles, 160 kilometers). Has been corrected.

[@garyv2196]

Fun fact they were 161 miles away.

[@georgestam1710]

How can it hurt you? Hearing problems or something?

[@4ae109]

@@georgestam1710 Sonar is REALLY loud

[@RunningTree]

It can blow out your ear drums and if close enough it can literally melt your brain

[@onlybassfishing1813]

@@georgestam1710 sonar runs at an extremely high decibel rating. Fun fact, theres sonar that can boil water. Sonar can quite literally kill you. And the way decibels works, 100 to 120 decibels is multiplying it several times in actual volume. Sonar can run in the 200 + decibels range.

[@notzardy6639]

The fact that this thing(The pings) can melt your Brain is scary af

[@jakubgrygiel9795]

quit spewing crap

[@OmarAhmed-qp9ur]

Mrslav reference?

[@notzardy6639]

@@OmarAhmed-qp9ur ye

[@shaneypoo2022]

@@OmarAhmed-qp9ur First thing i thought when this vid popped up

[@universal5459]

Submarine sonar usage is limited. they very well could have but they wont

[@cassidywest5539]

that muffled "the fuck was that" killed me :D

[@daveminion6209]

0:45, 1:45- minute marks when sonar "PING" is the loudest, most audible, followed by a noticeable, faint echo following first high pitch sound. very loud for underwater!

[@benditobendito976]

Ty

[@daveminion6209]

@@benditobendito976 -hey, np yeah, for past 6 mos (or more) i have been looking at YT videos and figuratively "diving" into just about EVERYTHING nautical, maritime, and knowledge about the "open sea", staring with "rogue waves", and now more recently stories (or videos) of under water or scuba related events. thank you for video!

[@Blazs120gl]

Sounds like an AN/SQS-53 naval surface ship sonar.

[@jimryan4056]

At the time it seemed like it was sub surface. After many comments I do believe it was a surface vessel.

[@Buconoir]

@@jimryan4056 he was right, and it seems like a sub smacked you since the sound comes from the destroyer's sonar dome many feet below the surface.

[@69randomguy420]

Ur right it's an AN/SQS-53

[@ahmedbesic8960]

Its actualy not

[@cathundrix9673]

@@ahmedbesic8960 Then what is it?

[@seagie382]

if you're too close to sub sonar (think within a few miles of a directional phased scan) it'll actually kill you, surface immediately

[@robertrusnak620]

I’ve been a diver for 34 years. I’ve heard cargo ship props that were a solid mile from me and I’ve heard pleasure boat props right above me but never heard anything like that before.

[@DecoOnYT]

Arleigh Burke class Destroyer. Based out of Florida likely

[@jameshowland7393]

It's Navy sonar.

[@jameshowland7393]

@J.E leX Sounds like CZ/ODT mode, F1

[@robertrusnak620]

@J.E leX I have no doubt! Hearing a cargo freighter roughly a mile away sounds like it’s right next to me and actually moves the sand underneath me. I can actually hear the individual blades cutting through the water, and that’s no BS!

[@stephenhaines2929]

@J.E leX Someone watched the MR SLAV video recently

[@fubringbackdownvotecounts3379]

It's sad that whales and other wildlife have to deal with this.

[@Robisquick]

To be fair, whales make an equally, if not, even louder high pitch noise to communicate anyways.. also most things underwater don’t hear very well.

[@_spooT]

@@Robisquick Whales are nothing compared to active sonar pings. You're supposed to get out of the water when you hear one. That ping prolly came somewhere really far away. Be within hundreds of meters within an active sonar and you'd suffer critical damage throughout your entire body

[@derpychicken2131]

@@Robisquick Reef fish in these dense colonies quite literally communicate with each other through grunts and various other sounds. If you've ever been underwater with the right gear, the sounds of the reef come alive. These animals use sound to communicate, just because they have different organs (such as lateral lines) to perceive sound instead of mammalian ears does not mean they don't hear well. They hear very well.

[@joet7136]

Yeah. It's no wonder whales they beach themselves if their senses and brains get damaged by sonar pings like this.

[@Em_Youl]

ooooh boo hooo

[@mrobviuos74]

Honestly, you and your dive partner should be grateful that you got out of the water alive with no injuries! Sonar is no joke! The two of you must have been far away enough from the source to not been seriously hurt or killed.

[@Nordstatic]

I don't understand. Are we just killing thousands of animals every time someone uses sonar? Like how can it be so dangerous

[@TimDaOne]

@@Nordstatic Sound is measured in decibels, sonar can send a signal with so many Decibels that all the energy created from the wave (sound is a wave with energy) is enough to kill a human if close enough. I don't know how it is with marine animals, I'm sure a lot would die if a sub used sonar and they were within 200 meters distance, but perhaps the high water pressure allowed for a higher tolerance of pressure change (which is the wave)

[@Frankman121]

@@TimDaOne I imagine it is mostly because we have a lot of air inside our bodies. Since the sound/pressure waves of the sonar ping compress air much more than water, it would damage our lungs and bowels more than aquatic animals that don't have those gas pockets present. It's the same as why underwater explosions are deadly from further distances.

[@SuperBIGGY84]

How tho ?

[@smoove_]

@@SuperBIGGY84 sonar can be as loud as roughly 235db and because of how water carries sound waves compared to air, it can be heard hundreds of kilometres away from the source, sonar is capable of literally boiling water within a 1m radius. If these divers had of been close enough to the source they could've been either seriously injured or even killed. Sonar is no joke

[@beebop9808]

Ultra sonics are pretty wicked. Wide variety of applications. I've set up quite a few of them over the years in industrial applications. I learned the hard way early on to air on the side of caution. I was setting up a small device that was emitting what sounded like very slight ticking sounds, almost undetectable. Made the mistake of turning the emitter face on and immediately became very disoriented with unbelievable pain in my ears and head. I didn't have to move it away, my arm collapsed moving it away. It took a couple of minutes or more before my head cleared up and I knew what was happening to me. Crazy stuff man. That was very low power compared to what would be used in the water.

[@jimryan4056]

😳

[@ginnis_14]

What was the driver being used for do you remember?

[@jdtv50]

“My arm collapsed moving it away” 😵‍💫😵‍💫wonder what it does to whales

[@beebop9808]

Not a clue. Would hope there's a little testing with different frequencies in an effort to avoid harm to wild life, like driving them up on beaches to kill themselves to escape? Not likely we'll be privy to that knowledge.

[@BenHutchinson321]

So you had an transonic signal that was amplitude modulated with pulses? What was the actual ultrasonic frequency being used? And what was the pulse rate? Also, what was the shape of the pulse?

[@DeputatKaktus]

This sound would also have scared the absolute hell out of me. From what I have read, the active systems on military vessels can easily turn your body into literal pulp at close range. According to one source I have read (which I was not able to verify as I am not a Navy person - so take that with a huge pinch of salt, since this is the internet), a full power blast from a sonar near the surface can even boil the water immediately around the sonar array. I do not know if there is any way to differentiate between active sonar from a submarine compared to active sonar from a surface ship. The distance is also a question mark I think - could be a very low power ping from relatively close by, like a couple of miles - or one very high powered one from hundreds of miles away. Either way, I am pretty sure they were not specifically pinging you. But is am sure there are people way more competent and knowledgeable than myself who can weigh in on this. Little fun fact / useless trivia: the "man down" warning on a SCBA device used by firefighters produces a similar earsplitting sound, including the alternating frequencies, b/c sound waves are also affected by thick smoke. Those warning devices usually go off after about 30 seconds (or when the alarm button is pressed). This is btw why on TV you sometimes see firefighters shake a little black box (usually attached to an air hose somewhere around the shoulder) or jump up and down occasionally, if they are in full gear. Some devices also emit a low volume pre-warning for a few seconds before they start screaming bloody murder in your ear..

[@Eggeh1]

Not true

[@37SATS]

@@Eggeh1 nice to see you again.

[@ingensvidcz5390]

the thing is it theoretically has he power to boil water by cavitation. But this is unwanted, as the fluctuation in preasure would/could slowly errode the metalic plates on the sonar. Therefore such powers, although possible, are avoided. But yea, it could for sure.

[@Superior1995Rex]

Boiling water? Don't you mean radar / Microwave?

[@ingensvidcz5390]

@@Superior1995Rex nope, its a soundwave. As the soundwave exits the apparatus into the water around, areas of high pressure and low pressure are created (basic concept of a way with its peaks and valleys). In the areas of low pressure, due to the enormous amplitude of the wave, quite a high vaccum is created in which the water boils even when cold (the lower the pressure, the lower the boilng point of all liquids)

[@random_user1014]

Active sonars are actually very dangerous as they can literally rupture your lungs when close to ship or being concentrated by it.

[@josephastier7421]

The systems have to be locked out / tagged out any time our people are in the water. At night, the lookouts on ships at anchor will sometimes get on a bullhorn and state very clearly into the darkness that the sonar can move the water a full inch and kill divers, and to stay away.

[@2KCamaroZ28SS]

No. They cannot.

[@vojtakkojecky7765]

​@@2KCamaroZ28SS they can. They can literally make a gulash out of your brain. There are cases where someone got hit by it from close distance and ended in hospital. If there is a crew in a water around the ship there is a voice saying "do not turn the sonar on, crew is operating under water" and US navy used this in iraq war agains suicide divers

[@9bang88]

@@2KCamaroZ28SS Yes. They can. There are several cases of people being injured by Sonar. It can liquify you brain.

[@mfatihraditya9162]

​@@vojtakkojecky7765yes but that is when the thing got close

[@raf4887]

In the second ping around 1:45 you can hear the fainter echo reflection and reverberation from the seabed. The source is not moving, or it is moving very slowly, as there is no doppler shift in frequency of the reflected signal.

[@raf4887]

The whales hear all, know all. kzbin.info/www/bejne/eHfUaneed9h-n5I

[@Itsrush887]

98/100 in physics to you.

[@andrewp1308]

Many a night I heard that sound laying in my rack when I was in the navy. My cabin was below decks with a (relatively) thin sheet of steel between me and the deep blue. I swear the operators would do it sometimes just to wake you up.

[@2KCamaroZ28SS]

Well according to the expert morons here in the KZbin comment section you should have exploded lol

[@torqq69]

@@2KCamaroZ28SS it's a simple google search to see the science behind it but oh yea KZbin morons kinda ironic isn't it

[@jeff0247598]

Now the Navy knows your favorite color, your first crush and your bankcard PIN.

[@Xynic48]

Now I understand why sonar is a big problem to the whale population

[@phildiegidio4658]

No wonder the whales get out of the water. Holy crap.

[@ziepex7009]

Whales are louder aha

[@brieftactical2125]

Loudest sonar is 235 db, capable of boiling water 3 feet away from the hull

[@FPSzyhix]

@@brieftactical2125 you saw that from mr slav?

[@georgeofhamilton]

Incredible how victimized every animal in the world is by humans.

[@DocHellfish]

@@georgeofhamilton Consider it payback for all the humans eaten by animals before we could defend ourselves

[@audionmusic2787]

Submarines listen. They never talk unless in actual combat vs another sub.

[@ripoutyourintestines5099]

@Thickok45 they actually can do shit talk each other royal naval and US navy subs do all the time. You can send certain frequencies that show up on sonar as an image, the best one I’ve seen was a hacker who hacked a Russian sub and printed a troll face

[@theotheseaeagle]

@@ripoutyourintestines5099honestly the troll face one sounds like something I would do lmao if I was in control of a submarine

[@maxxod1]

After playing countless hours of Cold Waters (submarine combat game), I instinctively had a moment of panic. I’d say it wasn’t a submarine but a surface ship of some sort. Submarines wouldn’t give their position away by using active sonar. They have towed arrays to detect and track other vessels.

[@TheJaskier666]

of course sumbarine would use an active sonar in time of peace especially in friendly waters :)

[@Steve-Jody]

I have a friend battling cancer who was part of the DoD that did acoustics research for the Navy based in the Bahamas. He said some of the stuff the US has is strong enough sonar that actually paint the bottom and something trying to hide on the bottom. Recreational fisherman are now getting a taste of that in Real Time Sonar. Some of the testing was so strong and severe it would kill mammals and fish in the cone. My friend is doing well today.

[@redacted4046]

So…. Aliens?

[@Linkolite]

Glad your brother is well.

[@jondoe864]

Pretty sure military sonar is what causes beached whales and dolphins/ porpoise also.

[@TemenosL]

Do you understand how this actually kills? I understand it is... sound. Of course. So it's... vibrations? Or something? Through the water? Like, I understand that fluid as a super-dense medium (compared to gas at least) will transfer shockwaves and sound far more efficiently and violently than in atmosphere, but I'm not understanding how sound becomes lethal in water. The human body is not insular enough against vibrating water? Or perhaps it vibrates the fluids inside the body too violently and ruptures stuff?

[@JamesBalazs]

@@TemenosL the speed of sound in water is 1500 metres per second So imagine an immensely powerful pressure wave (since sound is varying pressure, and sub sonar is 200+dB sound) hitting your entire body at 1500m/s. 200db is something like 6.5 million Pascal's of peak pressure according to a quick Google, or 945PSI. So the equivalent of getting crushed by several tonnes instantaneously. 200dB in the air can kill you, nevermind in the sea. Terrifying 😅

[@CHOPERUS23]

Definitely sonar, imagine the trouble it causes marine wildlife.

[@2mjz84]

Dont think any trouble is caused unless you count in discomfort? Which isn’t any trouble so no problem

[@Mallchad]

@@2mjz84 Sonar and radar is heavily regulated because it can kill both people and animals... Get too close and it can heat things up quite a lot, the disorientation of your inner ear fluids, disorientation she the following headache is enough to kill you though (confused in a dangerous environment)

[@mateyko555]

@@Mallchad can you link a source?

[@joshmcdonald9508]

You can count on any mammal that uses sonar to find it's food being really F-ed up. Either that or it instantly has a mental picture of whatever is in the water within a 5 mile radius.

[@Kpoole35]

@@2mjz84 corals, inverts, fish and very much the whales all get effected by sonar.

[@furiousapplesack]

The sound at the very end was exactly like the Warpers from Subnautica, which is extremely appropriate.

[@rty1955]

Another fine product from unisys. They made most of the sonar/weapons control/radar systems for the Navy. I was in the anechoic chamber a few times where they tested certain systems. It was deafening to hear your own blood surging thru your body. Unisys developed the doppler radar which the original project waa canceled and then it was sold to NOAA. They also invented the laser ring gyro used for inertia navigation systems on subs, so sensitive thT it could detect the earths wobble later sold to Singer to be used onboard missiles. So many other technologies they developed that are still classified to this day. It was funny that a friend of mine who worked at Unisys had to go onboard a sub for some upgrades and all the gauges were covered up. He laughed and said to the MPs who were with him aboard the boat, "you do realize that we BUILT these systems. I have top secret clearance, so i already know how fast and how deep this thing goes."

[@hyunsyu]

So your job was being a guinea pig for Unisys?

[@noturfather1106]

"I already know the secrets"

[@rty1955]

@@noturfather1106 i met the designer of the inertial navigation system for the subs which only need to surface for food. I asked him how they can navigate inder the polar ice caps. His reply. "If i told you, id have to kill you" haha So many brilliant people worked in that company. Lots of them with doctorate degrees in physics, engineering etc. One of them is the USAs leading authority on radar systems. He gets called in by the gvt all the time to adivse

[@noturfather1106]

@@rty1955 it's insane just how much technology really is hidden and kept secret. So much so they even want to cover the dials so a designing engineer can't see them😆

[@rty1955]

@@noturfather1106 agrees. Also how much technology that is being designed today that is kept very secretive

[@SwattyBoiPlays]

0:45 is when sonar pops up

[@UKnowtheThing]

That sounded more like SOSUS arrays. I was on the USS Michigan SSBN 727 and we never used active sonar even when not alert (covering target packages) We did go through an alley of SOSUS arrays because we thought a Russian sub was tailing us and they actively pinged. It was kind of eerie.

[@BenHutchinson321]

What is SOSUS?

[@Audioobscure]

Woah so interesting please tell more

[@nastystang113]

SOSUS stands for Sound Surveillance System. The US has SOSUS arrays placed all over the ocean to detect enemy submarines. Sonabouys can also be launched from planes and/or helicopters. There is a company here in Central Florida who builds sonabouys for the USN.

[@johngavin2570]

I've been pinged before, a few times. It's scary knowing someone with a bigger gun knows exactly where you are, even if they're actually miles away and not looking for you specifically. The ocean is a big place, but if you hear that sonar, well, they know where you are and you better not get closer. The first time I emergency ascended with my buddy thinking my eardrums would rupture if I was underwater if it went off again because I knew what it was and how dangerous sonar is for divers, then got laughed at when the source was found to be miles away.

[@VortexStolenName]

this sounds like those jumbled AI generated messages. "if I was underwater if it went off again because I knew what it was and how dangerous sonar is for divers, then got laughed at when the source was found to be miles away."

[@NathanDudani]

@@VortexStolenName it is one

[@h930hec]

@@VortexStolenName great spot… why are these AI comments even a thing?!

[@b9y]

@@NathanDudani how can you tell?

[@MoogieSRO]

@@VortexStolenName It's a convoluted sentence, to be sure, but it does make logical sense if read correctly. The bit of the sentence you quoted is improperly truncated at the start, making it sound more nonsensical than it actually was in its full context. Changing up the grammar a bit helps: "The first time, I emergency-ascended with my buddy thinking my eardrums would rupture (if I was underwater *when* it went off again), because I knew what it was and how dangerous sonar is for divers. Then got laughed at when the source was found to be miles away." If English is your first language it's a bit easier to mentally untangle it, but I can understand you having difficulty if you're a non-native speaker. I don't see any sign of this being an AI generated comment; it's too specific, and would have had to have been sourced from other comments in the thread. I cannot find any other comments here containing snippets of what this person said, so I believe it was just an awkward sentence.

[@joebridges3165]

Beautiful reef, it reminds me of how the reefs use to look in the Florida Keys back in the 70's

[@TheFishking16]

Yeah they are all fucked up now

[@gavinvalentino6002]

My Florida keys in the '80s used to cost me $22k-$26k. But I got 30 flat for each in VaBeach!

[@face.-]

@@gavinvalentino6002 🤣🤣🤣

[@patton303]

That active sonar could be from a ship that is 100-300 miles away. Every 10db is 10 times louder than the previous 10db in order of magnitude. Destroyers can create a sonar event of 235db which is literally a trillion times louder than speaking volume. It can melt the tissue in your brain. Just bonkers technology for ship security.

[@Baboner984]

No its not. If you double the intensivity its +3db not one

[@jdraper12]

Everyone's just regurgitating that one youtube vid don't bother

[@BenHutchinson321]

Melt isn't the right word, since the effect is acoustic not thermal. More accurately it pulverizes your internal organs. Like the shockwave from an explosion, the pressure wave from sonar is loud enough it basically just crushes your internal organs as the wave passes through them.

[@SuperCrabCraft]

​@@Baboner984yeah, and if you 10x the power you get +10 db

[@LifeLikeSage]

Sonar at 0:40

[@ptmc2112]

More like 0:46, but yeah Also at 1:47

[@jdstark24]

I imagine it's a similar feeling to hearing a female mountain lion in heat for the first time and not having any idea what it is. Very terrifying experience

[@OceanlinerDesigns]

Hi Jim! This is really interesting footage. I am working on a video explaining passive vs active sonar - would I please be able to use a snippet of this with credit to show how the sound travels underwater?

[@Courier_Jackalope]

Mike! I literally JUST got done watching your Empress of Ireland video not 5 minutes ago! 😂

[@OceanlinerDesigns]

@@Courier_Jackalope Oh great I hope you enjoyed it! It's not an easy watch but we are all very proud of the video we made. :) Thanks so much!

[@jimryan4056]

@@OceanlinerDesigns of course.

[@OceanlinerDesigns]

@@jimryan4056 Thanks so much mate!

[@jimryan4056]

@@OceanlinerDesigns send me a link when you upload your video please.

[@PEPPERS777]

Man that sounded annoying even through my phone speakers... Can't imagine what sea life must feel, especially super sensitive ones like whales, etc.

[@davealmighty9638]

Captain: "did you detect any activity in the sonar?" Sonar operator: "I think I just heard the sound of someone shitting themselves"

[@Kingkong9099]

Sounded like a high frequency and a low frequency sonar. They are not looking for you but its dangerous underwater.

[@davidshaffstall8693]

I’ll bet marine life just love it 😵‍💫🐋

[@dies_das_niklas9588]

the thing is, it knew exactly where you were because of that

[@jimryan4056]

Lol! Probably an ex girlfriend.

[@rutuu7236]

Are they really sensitive enough to see a person from miles away?

[@dies_das_niklas9588]

@@rutuu7236 I think they can set how big they want the objects to be that they detect.... Like such a filter

[@CynicallyDepressedx]

I'm really surprised by what the sonar sounded like. I expected low pitched "ping... ping..", not this squeal. Also the sound right at the end was terrifying

[@jimryan4056]

The sound at the end is a boat passing by.

[@CynicallyDepressedx]

@@jimryan4056 At 2:02? Man, boats sound like a decepticon waking up to destroy the world when you're under water

[@BenHutchinson321]

I think that low pitched ping like you hear in submarine movies is from a WW2 era sonar.

[@ezra2305]

Sonar/Radar actually do something called chirping (clue is in the name,) where it runs through a spectrum of frequencies (high to low/low to high,) to give a greater resolution of the intended target in the boresight. The specific frequencies they propagate give the receive signal a "signature" so that they can pick it out of all the other mess/noise. Really interesting tech!

[@jims146]

You may want to contact Sub Brief here on KZbin. He can tell you what type and class of ship it came from as long as it does not effect his NDA from the navy.

[@mr.highschoollocksmith6080]

It’s cool, listen close and soon after you’ll hear an echo of the ping.

[@jimryan4056]

It was probably bouncing off my fat ass. 😂

[@LongTran-em6hc]

Sonar operator: Hmmm, yummy ass

[@tino8296]

@@jimryan4056 legend 😂😂😂

[@berges104]

only did one war game with a Carrier task forces. The Escorts kept me up almost my entire sleep period with their pings. No idea how close we were or if it was during or after our hunting, they were keeping it up for a solid 6 hours.

[@illusiveelk2558]

Saw a video about this not too long ago. It can screw you up even if you are surfaced. Where is one story of someone who was in the shallows at the beach who had to go to the hospital for trauma due to sonar from a ship several miles away.

[@natesturm448]

A lot of people don't understand pings outside of the vessel. Inside all you really hear is "boop, bing, bong" from the terminals. Outside? Well it *HAS* to be loud and high pitched for a reason.

[@jeremeytheking]

0:46

[@scivirus3563]

besides the obvious 2 pings there was another hi freq pulsing one starting at 1:31 ..that one tends to kill ocean mammals

[@thanosbustedinyourmum]

Yeah dude I’m sure so many ocean mammals got killed……

[@CR055FIRE]

literally all the ocean mammals died

[@Superior1995Rex]

Whales, Dolphins and Porpoises are Marine Mammals..

[@ftniceberg874]

@@CR055FIRE I love the sarcasm aimed at goofballs thinking the Navy would use the nasty ping when Greenpeace and other activist weirdos could easily run over to throw a tantrum.

[@Illumina_Blade]

Fun fact, if a ships sonar pings too close your lungs and brain will more or less explode. Even from miles out you may be disoriented and nauseous.

[@michaeladriatico1488]

I wonder how the whales and other sea creatures hear this.

[@pimpusmane]

I like when you reverted back to your droid form before the video ended 2:02

[@jimryan4056]

That’s the sound of a boat motor.

[@pimpusmane]

@@jimryan4056 you were becoming the boat my guy you can’t lie to me🧐

[@jimryan4056]

@@pimpusmane got me! I’m secretly a transformer 😂

[@demonicflame66]

Arleigh Burke class destroyer it sounds like

[@lilsamantha1]

The sounds played while my cat was laying next to me. He took off,, imagine the fishes?? omh

[@zoop2132]

Drives whales and dolphins crazy to the degree that they beach themselves to escape the sound.

[@saltybits9954]

A powerful sonar blast can be deadly to humans. Alot of divers aren't even aware.

[@indridcold8433]

That soñar ping probably came from hundreds of kilometers away.

[@jeffreylindsey1757]

Must drive sea life bonkers!

[@jimryan4056]

I’m sure it does.

[@Luke_MoonWalker]

I'm starting to understand that sound and vibration can be much more deadly than hot projectiles.

[@rabihbadr54]

You spelled LRAD wrong.

[@Luke_MoonWalker]

@@rabihbadr54 You spelled HAARP wrong.

[@sxavier8684]

Good to know what this sounds like! Would have definitely freaked me out! Not surprised that it's not the same "ping" sound us 80's kids grew up hearing in the the movies from back then! 😂

[@WhoThisMonkey]

If you hear this sound, you are supposed to surface immediately. I'm surprised that's not taught in every diving class.

[@milztempelrowski9281]

why are you supposed to surface. how's the surface gonna help?

[@zx3215]

@@milztempelrowski9281 this means there's a torpedo coming after you

[@milztempelrowski9281]

@@zx3215 lol, sure buddy

[@BenHutchinson321]

What good is being at the surface? Sure, the air/water boundary drastically weakens the sound escaping to the air, so not going to blow out your eardrums, but the rest of you is still under water, so your internal organs will be pulverized. Your best bet is to actually get back to your diving launch boat and fet out of the water entirely. Don't leave any part of your body in the water.

[@WOLFOXY16]

​@@milztempelrowski9281cus it can kill you

[@Pureignition58]

1:35 That is the type of shark that I saw as a kid next to Catalina Island it was swimming above the ground like that. Me and my church friend Bill swam as fast as we could back to the boat just to have the pastor Bruce laugh at us and tell us we had nothing to worry about that they were nurse sharks and would like how we taste. xD

[@poseidons_636]

Sonar can boil the water around the sonar dome. Pretty nuts.

[@sondrebergesen9170]

Subs go passive, most of the times at least. Some use avtive sonar to navigate tho. This one is prob a skimmer searching for a sub. Hot tip tho, fasten a chain to your scooba tank next time your out. Submariners steer clear of that shit.

[@Cragified]

Depends on the submarine. A lot of older November/Victor I/Victor II Russian Submarines and the Chinese Type 91/94 class tended to bang about a lot if they thought a NATO sub was in the area because their passive was so poor their only real hope was active. Type 91s are so noisy still that I'm not sure what use they are except for China to say it still has nuclear powered submarines.

[@firenicey7319]

Most cases submarines use “ passive sonar “ or just listening. Only when they are actively hunting do they use the “ active sonar “ pinging to hunt enemies. Hunt for Red October is somewhat a decent example of this as when you “ping” you are giving away your position. The Dallas was using passive to listen for the Red October. Now as others have stated surface ships use active sonar frequently and aircraft can drop sonar buoys. I’m thinking this is most likely surface ship.

[@ftniceberg874]

Nope...Passive sonar is how we actively hunt or track other vessels. My sub never once used active sonar...The only time I've ever heard a sub ping was in videos of the SAR attempt to save the USS Thresher incident.

[@hydra70]

Fun fact, the newest generations of submarines are so quiet that they are actually almost quieter than the ocean's background noise. This means that soon the most advanced submarines will be so quiet that passive sonar will not be able to detect them even at near-zero range. Active sonar may have to be used more frequently because of this.

[@niftybman]

You: The f- was that?! Fish: [puffs cigarette] First time?

[@vsboy2577]

Those fish put up with so much from humans

[@randolphcarlisle2976]

Wow there are a shit ton of, "experts" in here.

[@Arc_Viper]

reason #1478 why I don't want to swim in the open ocean

[@jimryan4056]

😂

[@mrjaycam18]

The most shocking thing about this video to me is that the sub was actually using active sonar, which to me means this probably isn’t a sub at all

[@PlushAmongUs]

These people are so lucky to be alive. For many miles after a sonar signal is sent out, being within transmission radius of the ping and getting hit with it can melt your brain by causing hemorrhaging causing internal bleeding of a vessel to pop. This is why I stick to the deep end of a pool, thank you very much

[@HydroSnips]

Yeah, definitely a surface ping. At its very basic elements it’s vaguely similar still to WW2 ASDIC for finding u-boats, Pinnnnnnnnn-Ga….. Pinnnnnnn-Ga….. Just got a lot crisper and higher-frequency as you’d expect with tech improvements. Ah good old acoustic wave physics.

[@joellaurin9007]

Hull mounted SONAR of American type..... probably Arleigh Burke.

[@kentwilliams4152]

The weird thing about this is that submarines never use active sonar. To do so negates their one advantage, stealth. ( I served 7 years in the U.S. Navy submarine service.)

[@Revolutionarythought]

They use it all the time, tbh. How do you think depth below the keel soundings are done? What they do not do is active ping omni-directionally to locate targets--unless they are desperate AF--or at all (including sounding sonar) when they are actively trying to stay hidden.

[@bohunt8113]

@@Revolutionarythought The only time our fathometer was manned was during surface transits as part of the Navigation Watch. When you are in water that is thousands of feet deep, you don't care what the depth under keel is. If it is low enough to matter, you are on the surface, or are doing special operations, which would preclude using the fathometer. My source is my experience in the control room of a submarine for years. Have the Expeditionary Medal to prove it.

[@Arbuz-gf3is]

It's even scarier to hear that when diving alone 💀

[@fabianheden8596]

You should never dive alone tho

[@TheT0nedude]

They were right to be scared, be afraid be very afraid. Being close to the point of origin can easily kill. That sounded like it was some way away, could've easily been miles.

[@therookie9276]

0:46 bro i cant💀

[@merrickx]

The sounds that powerful sonars emit are often proprietary and guarded, but there are quality recordings out there, and this video is one of the best. That absolutely is the sound of sonar- not dissimilar to the fictional frequency detection and listening scenes in the movie Sunshine from 2007.

[@Plasmastorm73_n5evv]

The main AUTEC support base and downrange tracking stations are on Andros Island in the Bahamas, just west of Nassau. It stands for Atlantic Undersea Test and Evaluation Center. Naval equipment testing center for top secret advanced naval equipment. It's a laboratory that performs integrated three-dimensional hydrospace/aerospace trajectory measurements covering the entire spectrum of undersea simulated warfare - calibration, classifications, detection, and destruction. Its mission is to assist in establishing and maintaining naval ability of the United States through testing, evaluation, and underwater research. Very likely where the sonar was coming from.

[@ivoryowl]

If that's how loud it was for the divers imagine the effect it will have on sea critters with more sensitive hearing than us...

[@natowaveenjoyer9862]

The effects of sonar on sea life is negligible.

[@mrdriver2988]

Active sonar pings can reach up to more than 120km under water. Legit crazy and terrifying as the stronger the sonar ping can lead to trauma and huge hearing loss and can cause damage to your lungs. Also the fact sonars can boil water if they put more power to them

[@GoatPersonThing]

most sonars boil the water within a few feet of them, plus 120km is inaccurate, its closer to 300 miles away that it can still melt melt u basically from the vibration

[@woodjacoodja9544]

That's freaky as hell