Powerful Shockwave during Explosive Eruption of Sakurajima Volcano, Japan
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- Опубліковано 21 вер 2024
- Sakurajima Volcano is capable of powerful explosive activity which can result in the production of shock waves. In the past, windows have been broken by these shockwaves at distances of over 10km, such as in the nearby city of Kagoshima. During damp conditions, the passing shockwave causes brief condensation of water, making the shockwave visible. The video shows the same eruption two times using different optical lengths so both details and the passage of the shockwave over a wider area can be seen clearly.
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Those tiny dots flying out of the volcano in the second half are the size of cars and houses. UNREAL.
+doggonemess that's a lot of pressure being released all at once and anything not tied down and anything heavy is going to get launched by the force. but still its amazing to watch something like this
Actually, those tiny dots looks like cars and houses!!
Not house sized, the explosion wasn't that powerful...
These rocks flying could be heavy or light, we don't know
Yes. Considering the distance of the camera and still those dots were visible.
Interesting how the birds chirped up their alarm calls almost immediately as the eruption started from your vantage point which I estimated was about 2'400 m from the volcano -- counted the time it took the sound to reach the camera mic after the initial shock wave erupted form the cone (second camera angle at 0:25 to 0:32 )...
t = ( 32 - 25 ) = 7s
d = 7s x 340 m/s = 2'380 m.
i guess they just saw the shockwave :)
MelioraCogito: Sound travel much faster through soil than through air. The birds probably felt and 'hear' the sound differently from how humans experience the sound and the birds thus felt and react faster to the tremor.
The birds are fake dud, they're sound effects, and how do you even know those are alarm calls?
@@VictrixRL we have mr Rogier Varbeek to thank for that
Shockwaves are supersonic, the 340m/s calculation gives an underestimate of distance
0:05 you can see the air condense when the blast wave hits it. really awesome to watch, i could watch this over & over. The sound took just over 7 seconds to arrive
Birds: Fuck that shit. **Flies 1000000 miles away**
flies 1000000 miles away, ends up at the same location where he started,
lol
also intersting - the bird starts to scream at the same time you can see the shockwave.
I kind of expected a loud bang instead of a roar
***** it was more of a roar instead of a bang like youd normally hear from seeing a blast make a visible shockwave. and this guy was sitting at least 2-4 miles away
***** and the roar you're hearing in the clip is the volcano venting pressure instead of blowing it out explosively
***** he did say in the description that windows were blown out as far as 10km
Derek Wall IN THE PAST, windows have been broken by these shockwaves at distances of over 10km
I have experienced a volcano eruption where there was a loud bang. I was out fishing alone, and i saw a volcano erupt far away. Almost 10 secs later, i hear a loud bang and the sea water was disrupted. My boat capsized immediately. Luckly, my friend was there to help me cuz i did not know hot to swim at all
Love the sound birds squawking as loud explosion occurs. Beautiful!!!!
0:26 DROP THE BASS!!!!!
Ok, time it took from the initial explosion to the time the shockwave hit the camera:
Approximately 7.4 seconds.
Speed of sound: 343.2 m/s.
The volcano is approximately 2,532.28 metres away, With a little margin of error due to the slightly faster speed that the shockwave moved through the air.
I think my calculations are correct, can anyone who understands of this help me?? Im only 13, but i love physics.
I got 2539.68 (d=rt). But, I didn't include any margin of error. Keep up the good work. You may be the next Stephen Hawking!
Whilst it is admirable that you were genuinely interested in the topic, but this gets taught in 6/7th grade, with most people being 11/12. So you knowing this is not as special as you think, although it's a good thing it sparked interest in you.
What makes you think OP is trying to be special? They're probably stating their age so people know they're young and won't be crappy to them if they're mistaken. OP is probably 15 or so by now and may be on their way to being a physicist. :)
@@streamofawareness That might very well be the case. But I encountered many people that state their age just to make themselves admired or special. As though their age is something that matters when it comes to capabilities but "shouldn't be looked at" when someone states their opinion. In a sense that age is not the important factor, mind is.
I love the reaction of the birds
"OH GOD DAMNIT, I AM GETTING THE FUCK OUTA HERE"
Interesting footage...I enjoy it when we are able to hear the eruption as it happens , and see the shock wave . Thank you
This is an impressive catch of the Sakurajima volcano erupt, and emit plumes of ash, and then the blasts can be heard after the shockwave took place. This being the most active volcano in Japan, worries some researchers on volcanology, that studied it's activity for quite some time that a huge explosion can take place at any time. However, US volcanologists have seen dangerous eruptions from these locations. The volcano sits on a southern island in Japan and frequents eruptions every two to four hours.
beautiful yet so scary....
the way the energy deploys is very interesting!!
It would be cool to know the size of some of those rocks or the width of the rim.
At that altitude sound travels at roughly 1100 ft/s and it was about 6 seconds until he heard the eruption. So he's about 1.25 miles from it.
nice
looks aboslutely incredible when it zooms out
Using the speed of sound, and how long the sound took to reach the camera (about 7 seconds), the camera is about 2.5km away from the volcano
You know shit gets real when the explosion is happening before the sound comes
+TitaniumSnakeStudios light travels faster than sound, so if you are far away, you will see something and afterwards will hear it.
Hasn't Japan had it's share of mushroom clouds?
+doggonemess LOL
+doggonemess so fucking disrespectful
+IAmTheBlutsauger If we can't joke about horrible things, then we can't move on from them.
doggonemess Yea...I guess that makes sense.
too soon lol
Talking about the sound. If you listen, the birds start going crazy and you hear a lot of flapping right as it's happening
Prandtl-Glauert effect - effect of condensation when the pressure is changing in the front wave
whoa. ill bet the sound of the blast did more than just break windows.
You said it, that was pretty rad.
wooow, you know its fast when you can SEE the shockwave
That's not what happened. The angles do not imply a zoom at all. They would have to have been 1000 feet from the eruption, which is way too close. Things would appear much flatter if your theory were the case.
I can't stop laughing my ass off at the birds. It's like this isn't the first time they've seen this.
Hahahaha I'm living just near by this Volcano!!!
How was it like there?
this is what happens me the morning after i drink 12 pints of Guinness
A compulsive teacher! I bet, that half of your relatives are teachers!
Such a teacher!!
Yoiu are a natural born teacher! I love your lessons!
well i have heard of a new invention...
called
ZOOM and DIRECTIONAL MICROPHONE
woah... these new inventions from the early 60s made it finally to our generation! :)
It's videos like these that should have the speed up buttons.
I search the detailed explanation of the formation of temporary condensation clouds emerged after the shockwave and lasting only 1-2 seconds. Is it the Joule-Thomson effect?
The sound was too synched up for that to be the case. Also, telephoto lenses produce noticeable distortion that would be obviously evident in the video.
You can tell. It's pretty obvious because you can hear the rocks hitting the ground. No way can a camera pick that up without being way too close. This has to be edited.
If you ever heard a real object break the sound barrier then iyou know its not fake it takes a few seconds for the explosive sound to take effect
the bass cannon just kicked it.
Wow pretty cool loking explosion :D
I fell that, every monday i have to go to work...
If a volcano could feel things like a man, that would be like expecting a traumatic #2 and it turns out to be trapped gas, probably felt pretty damn good.
Does the sound reach you before the shockwave does? It does right? But then again, why did the birds freak out before the sound even reached them in that case? Why is geese a fun word to say?
It's beautiful.....
Its funny because that easilly blows your ear drums away it may not seem to but i promise it does
Funny how you can hear many animals going crazy before the explosion... xD
VOLCANO FART?
LOL XD
That it's a very *VERY* bad joke pls don't do that again
😱😂😂😂🤣
to photovolcanica: what was the loudest bang you've heard from this monster?
thats amazing...
I'm slightly suspicious as to the veracity of this video. Look at how powerful those shock waves supposedly are, yet, the camera survives? I don't think so.
stunning video!
AWESOME!! I've never seen this before :D
Awesome stuff rig
it would be fairly far away on a good mount. Its not fake
And this is a good example of what happens when a dwarf farts.
Pretty sure that was just a Chuck Norris sneeze.
everytime I fart - there‘s a similar shockwave
Beautiful!
is the video slowed down? it seems like it but the sounds make me think its not. I guess its hard to tell the actual scale of the shockwave and the debris flying around, since they look like relatively small rocks, but they move so slow that maybe they are massive rocks. Weird
No, the camera is just really, really, really far away. Sound travels at about 350 m/s and it took about 8 seconds for the sound to get to the camera so its about 1.7 miles away. If you listen to the birds, they don't seem sped up or slowed down.
***** yeah thats what i thought, you cant really tell the scale of the explosion. For it to look slowed down and still look big... it must be a massive explosion actually. Nature is messed up bro O_o
***** 6000 miles away? Uh...So they're filming from California to Japan?
its about 1.5miles/sec for the speed of sound. Its a little under 1000mph for the speed of sound.
Alex Forsyth No, its 767 mph
i used to post witty comments on youtube and then i took an arrow to the knee
I think the Greybeards are calling for the Dragonborn of our generation.
We both know how easy that can be time shifted. Just overlay a different sound file and apply a low pass filter. Poof, it sounds like a far away noise.
The crow perceived the explosion before it happened.
Sick! Especially te 1st part
good camera
Looks like some birds get scared before the sound arrives
♥.♥
Nice Sound...☺
I'd be like: "RRRUUUUNNNNN!! Run FAR awAYYYY!!!!!!!!!!"
ok which astronaut dropped his nokia from space
anyone noticed the sonic boom it causes at the very beginning of explosion?
its the gases coming out
n4sc3ntbrother That's a vapor cloud from the moisture in the air condensing into clouds as the pressure from the sound wave exerts its force through the air
When people say ummm it makes me LOL. Usually it's the girls who begin a sentence with ummm. You might want to work on that.
I just learned how to say "let's get the F outta here" in two different bird languages
Cool!
THIS is why you shouldn´t be close to the edge of an active volcano..
You know that light travels faster than sound right?
Damn nature, you scary
Awesome!
Anyone else think of Volcanoes as the zits of the world?
no wonder I heard some old man yelling at me last night...
Взрывной волной снесло моего медведя !
The distance of the camera is quite...obvious.
Fuck me, it looked like it ripped a hole in the clouds...
That is cool.
Amazing...
there seems to be a lag in sound travel so i'd say far
That would indeed be the case if this video was the real deal. I have my doubts.
Awesome
CAW CAW...OH MY GOD RUN MY FELLOW SEAGULLS! RUN FOR YOUR LIVES!
the more stressed the earth gets with our destroying our planet with wickedness, the more the earth will turn to these smoking incidents
I think you need to take a read on what a shockwave actually is.
Amazing o-O
I've got to thinking maybe I'm the dragonborn and I just don't know it yet?
Is that the showa crater?
The sound wave is visible in here. Holy shit.
0:25 What caused 2 shockwaves there?
Maybe do some research on the speed of sound?
Colossal Titan Volcanic Eruption in Japan
agreed
0:06 what kind of bird is that.!?!
.
A pheasant believe it or not.
wow!!!
No, we are trying to order a pizza. Does anyone on this world ever understand what we are trying to say?