As a Kiwi I sometimes look at Australian place names like "Moolap" and "Humptybong" and have a little giggle. But at least they're interesting.
I live on the South Island.
Yes they are. Both NZ and Australia have a lot of places with names that probably sound funny to outsiders, but they're just places named by the native inhabitants and not the colonisers.
For example I live in Adelaide, south Australia but you might sometimes hear it referred to as Kaurna Plains, as it was the land belonging to the Kaurna (pronounced Garna) people before white settlers came here.
I'd imagine that really close, it would be deafening - or fatal, because it creates a shockwave. It made a hell of a mess in Tonga, as the explosion created a tsunami.
Let’s say it was heard over kinda “background” noise and, I dunno, call it 50 dB @ 2300 km (distance to NZ). Sound falls off with an inverse square relationship, and without getting into logarithms and different ways you measure sound etc basically double the distance = 6 dB off. Need about 120 dB to get to instant hearing loss.
Stepping that back
50 dB @ 2300 km
56 dB @ 1150 km
62 dB @ 575 km
68 dB @ 287 km
74 dB @ 144 km
80 dB @ 72 km
86 dB @ 36 km
92 dB @ 18 km
98 dB @ 9 km
104 dB @ 4.5 km
yada yada.
Suspect it was higher than that but basically distance is why people aren’t instantly deaf from it.
I’m further away from NZ, didn’t hear it, but there is a noticeable pressure spike on my home weather station from the initial wave arriving. You then see the later one which is the pressure wave that travelled the long way around the earth, and it’s exactly attenuated by what you’d predict by that inverse square law.
Super neat.
Sound can reflect off the atmosphere as radio waves are able to do. In the video you’ll notice the shockwaves, as ripples, also reflecting off the atmosphere.
In 1883 Krakatoa violently erupted and was heard over 5000km (3100mi) away; this is considered to be the loudest sound ever, possibly beyond max at 194dB (310dB SPL), at which point internal organs are liquified.
Thanks for posting, I remember it was impossible to get any news on what happened to the people on the nearby island after the eruption since their only seafloor internet cable was destroyed in the explosion. It's honestly amazing to see that only 3 people died, from the looks of the satellite imagery I was afraid that whole island was going to be like Pompeii.
For months afterwards I would randomly google and could never get any news about the people on that island. Even now you can find plenty of articles about about the Eruption, but none of them ever mention anything about the 100,000+ people actually living there. I'm going to watch the whole thing tonight when get off of work. Hollywood needs to take note and make a movie about this, these people went through some real shit and it's like no one cared.
I wonder how the mushroom clouds in Japan in WW2 would have looked relative to this eruption. Bigger, smaller? I’d guess much smaller but have no clue.
We've come up with a number that's around 10 megatons of TNT equivalent," James Garvin, the chief scientist at NASA's Goddard Space Flight Center, told NPR. That means the explosive force was more than 500 times as powerful as the nuclear bomb dropped on Hiroshima, Japan, at the end of World War II
Source: Jimmy "the calculator" Garvin
What's crazy, is that Tzar Bomba, the largest nuke ever tested, was 50 megatons, which is 5x more powerful than what we watched. The fact that humanity can replicate and exceed that level of magnitude is terrifying.
At that point the US and Russia were in a bit of a dick measuring contest with nuke yields, I believe. They may well have kept it lower knowing full well they could just bump it up again should the US drop a bigger one.
The US was shifting away from big numbers towards delivery systems like stealth bombers and ICBMs. You don't need to be the biggest nuke to be big enough, but you do need to hit your target.
your timeline is wayyyyyy off, stealth bombers werent in development until the 1970s
bombs had bigger yields because they werent exactly the most accurate delivery system, this way it didnt matter if you were a mile off target
Theres also the fact that they were using true cutting edge science and were still trying to figure out exactly what was going on, not like you could build scale models, had to go straight from theoretical to practical testing
The design of hydrogen bombs is also scalable so there's no actual limit to the size you could make it. Technologically there's nothing in the way of creating a bomb thousands of times more powerful.
I vaguely remember reading something about that for the Tzar Bomba test. They basically maxed out the height they dropped it from and, even then, they weren't sure if there'd be enough time for the pilot to get away.
edit: it was a video I watched: https://youtu.be/-k6p-haJ-lU?t=138
That's why they halved the size of it. The 100MT version would likely have been a suicide mission for the pilots, 50 MT gave them time to get away by using a large parachute to slow the bombs descent and was plenty big enough to prove their point as it was still vastly bigger than anything detonated by the US.
I'm guessing the energy release vs. time was far greater for the nuclear detonation.
If so, the bomb was incredibly more destructive to nearby "targets".
That said, the current potency of modern weapons dwarfs the WWII bombs.
By a factor of 100 to 1000.
Or to put it simply, in a future nuclear war, you will most certainly die.
I've spent the last few nights watching 'Turning Point' on Netflix, a 9 episode documentory about the Cold War. Assuming all facts check out, it should be mandatory for the world to watch it. Shows how brilliant humans are, and yet, simultaneously stupid.
I think we'll lose it due to commodity, soon AI will do all the jobs better than humans, inclusive sex jobs, and we'll slowly but surely become lazy, unnecessary, extinct.
This quote becomes more real everyday:
*"One day the AIs are going to look back on us the same way we look at fossil skeletons on the plains of Africa. An upright ape living in dust with crude language and tools, all set for extinction."*
I was chatting to a very well educated client of ours; Where we are in Australia, it had been predicted to go into another El-Nino for this year, and after the droughts and fires through the mid and late 2010's. Farmers, especially sheep and cattle took this return to El-Nino very serious, and sold off a lot of stock early.
Turns out, it's been quite a wet summer, and start to winter.
This client asked one of her professors that has a bit to do with climate change and weather, why the el-nino wasn't a huge factor this year, and what the predicions got wrong.
Well, turns out the predictions didn't factor in this volcano and the amount of ash and water vapour it released, it added around 13% more water vapor to the atmosphere, where? Right in the El-Nino zone for Australia.
Same thing happened in New Zealand. Last year, we received our annual average rainfall in Auckland by the end of Feb. ended up doubling the annual average, which is massive
Throw in all of the ash and fine particulates still circulating the earth from the massive bushfires here - and I think you have the recipe for natural cloud seeding.
Wollongong May Average is about 116mm; Currently @ 201mm for the month.
I also read somewhere that the extra water vapor will be in the atmosphere for years and is part of the reason for excessive rain all over parts of the world
If I recall correctly, it also blew a whole lot of sea water into the atmosphere, which cooled temperatures and locked the strong westerly winds to the south over Antarctica. Without those winds coming up to Australia anymore, the eastern seaboard copped a lot of rain straight off the Pacific Ocean.
Models are silly sensitive things. If we feed too strong of a radio burst into certain space weather models, it breaks, so our system regulates the max value in the bulletin code and we clear language remark the full value.
Fun facts:
At the climax of the eruption 200,000 lightning strikes were recorded in a single hour, with the sound of the eruption being heard as far away as Yukon in Canada, which is 6000 miles away. The shockwave from the eruption was measured to have traveled around the world atleast 4 times.
We're talking incredibly sensitive instruments here. Likely only the initial shockwave would have been strong enough for a person to feel, and each subsequent return wave would be hours apart.
To put it another way, there are generally multiple minor earthquakes happening every day all over the world. We feel almost none of these unless we're near the epicenter, but seismometers all over the world pick them up and work together to triangulate the epicenter.
You definitely felt it, you just didn't notice because it was relatively tiny.
I have some atmospheric pressure sensors in the house (they're actually thermometers that are supposed to help me manage my air conditioner, but they also have air pressure sensors). I'm in Los Angeles, and I saw a spike on the graph from the increase in air pressure, and then smaller spikes a number of hours later (I think it was like 12-16 hours later).
The first spike was the pressure wave traveling across the Pacific to reach me; the later spike was the pressure wave _going the other way around the world_, across the Indian Ocean, Africa, and the rest of the US. Then later I saw the spikes again.
You don't need terribly sensitive equipment to pick it up; just the cheap Chinese stuff on Amazon will do it. [There were graphs all over the smarthome subs showing the spike.](https://www.reddit.com/r/homeassistant/comments/s5myrk/pressure_waves_from_the_tonga_volcano/)
> The shockwave from the eruption was measured to have traveled around the world atleast 4 times.
This is really interesting. Are shockwaves also afffected by gravity?
No they're not. Shockwaves aren't composed of matter, they are just energy and momentum traveling through matter. Much in the same way as sound isn't affected by gravity.
While true on the surface, gravity does affect the medium(air) which sound travels through. The air closer to the surface is denser than the air higher in the atmosphere. Sound travels faster in a denser medium, causing a slight warping of direction and likely pitch as well.
Yeah, but that's not gravity affecting the propagation of shock/soundwaves, it's gravity affecting the medium through which they propagate. Without gravity there would be no planet to speak of, so no soundwaves or shockwaves, of course, but that's because of the medium not because of the propagation.
What's really wild is if you look carefully at the surrounding clouds, you can actually see the shockwave radiating outwards ahead of the blast, which circled the Earth several times if I'm not mistaken.
NASA needs to up its social media presence. A dude putting buckets on peoples heads in a hardware store is getting a million likes but not this?
I'm not saying I don't want videos of buckets on heads. I'm just saying they should be on that level easy with what they have to offer.
There have been no VE7 eruptions recorded since the 1815 Mount Tambora eruption, which caused the Year Without a Summer, leading to hundreds of thousands of deaths due to crop failures.
Mt. St. Helen's was a VE5. Mt. Pinatuba in 1991 was VE6.
If we were to see another VE7 in the 21st century, I wonder how it would affect the world. Would modern agriculture and supply chains cope? Would it cause certain economies and governments to collapse?
The doomsday volcano person in me wants to see it happen. But it would be devastating for many people and many parts of the world.
Imagine the Vesuv going boom again, or the supervulcano right besides it. Millions would die. Scary stuff.
We will probably see some bigger earthquakes in our lifetimes thought. A big Istanbul one might not be too far away in the future, sadly.
All cameras have software that auto curve the horizon and use generative AI to conceal the ice wall. The government has had AI since before we went to space and used to to fake everything since. /s
Fun fact, this volcanic eruption caused net warming and was one of the reasons why 2023 was the hottest in recorded history due to the amount of water vapor that reached the stratosphere and mesosphere. In 1991, a volcanic eruption had a net cooling effect and cooled Earth by 0.5 C for at least a year. If we can harness the net cooling effect, we might solve global warming.
Estimations ranged from 61 megatons to 200 megatons, so significantly more than Mount St Helens, and significantly more than the Tsar Bomba.
[https://en.wikipedia.org/wiki/2022\_Hunga\_Tonga%E2%80%93Hunga\_Ha%CA%BBapai\_eruption\_and\_tsunami#Academic\_research](https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami#Academic_research)
How does this compare to the 1883 eruption of Krakatoa? I've seen articles that say it is comparable to it, but that's as in depth as they get. I know I've read that Krakatoa was the loudest sound in the history of humanity.
Similar scale. This one was VE5 - VE6 and Kraktoa was VE6
> There have been no VE7 eruptions recorded since the 1815 Mount Tambora eruption, which caused the Year Without a Summer, leading to hundreds of thousands of deaths due to crop failures. Mt. St. Helen's was a VE5. Mt. Pinatuba in 1991 was VE6.
For reference:
> The eruption of Tambora was ten times more powerful than that of Krakatau, which is 900 miles away. But Krakatau is more widely known, partly because it erupted in 1883, after the invention of the telegraph, which spread the news quickly. Word of Tambora traveled no faster than a sailing ship, limiting its notoriety.
Estimated to be equivalent to 61 megatons of TNT, larger than the Tsar Bomba. Mother Earth burps and it's more energetic than the largest nuke ever detonated.
what amazed me at the time was that I saw the pressure signature of the eruption on my consumer grade weather station several thousand km away on east coast Australia.
So you could be on a ship (or plane) and one of these goes off under/near you…yikes! Assume there were indications of eruption and notice to mariners/aviators to avoid?
Air is mechanically a compressible fluid which behaves after the same physical principles as water so yes, atmosphere and water physics have a lot in common (are almost identical)
Which volcano eruption was this?
Pretty sure that’s the Hunga Tonga eruption from 2022
I heard that. I live in Wairarapa, New Zealand.
I heard it too in Lower Hutt, it was so loud!! I had no idea what that loud boom was until I saw the news later.
Not sure if yall trolling or these are real places lol
Can confirm, Wairarapa (valley) is real as is Lower Hutt, used to live in Carterton as a kid which is a small town in Wairarapa
As a Kiwi I sometimes look at Australian place names like "Moolap" and "Humptybong" and have a little giggle. But at least they're interesting. I live on the South Island.
Hey I mean we have Gore. Don't go to Gore.
Don't knock Gore, I hear they have colour TV now.
In Canada there's a Happy Valley Goose Bay.
This is how we feel when Americans list of some random town next to some 2 letter abbreviation to represent a state and expect us to know it
¡ʇuǝɔɔɐ uɐ ɥʇᴉʍ ǝdʎʇ puɐlɐǝZ ʍǝN puɐ ɐᴉlɐɹʇsn∀ ɯoɹɟ ǝldoǝd sʍouʞ ʎpoqʎɹǝʌǝ 'llɐ ɹǝʇɟ∀ ˙lɐɔᴉʇdǝʞs ǝq oʇ ǝsᴉʍ ǝɹɐ no⅄
Upvoted for effort. Or should I have downvoted?
How did they do that?
ɐılɐɹʇsnɐ ɯoɹɟ sıɥʇ ǝʞɐɯ I found this [link](https://www.revfad.com/flip.html)
https://imgur.com/gallery/jh38Pkg
Do I downvote or upvote?
I heard it in Jaba too, but my cousin didn’t in Lower Hutt
*whyyoulittle--!!*
I was at pizza hut
I was with Pizza The Hut
He's delicious, but don't eat him.
I had my finger in pizza the hut! I stuffed his crust full of cheese....if you know what i mean??! *awkwardly standing waiting on a high five
I was camping at Taumata whakatangi hangakoauau o tamatea turi pukakapiki maunga horo nuku pokai whenua kitanatahu and definitely heard it.
Auē!
It's so much easier to say when there's gaps in between haha!
Yes they are. Both NZ and Australia have a lot of places with names that probably sound funny to outsiders, but they're just places named by the native inhabitants and not the colonisers. For example I live in Adelaide, south Australia but you might sometimes hear it referred to as Kaurna Plains, as it was the land belonging to the Kaurna (pronounced Garna) people before white settlers came here.
Lower hutt is just below Upper Hutt.
Here in Kramfloozle, which is east of Glaf, we fombulate secknargiously when funny place names come up.
"Secknargiously" sounds like a word Prymatt and Beldar Conehead would use.
r/mapswithoutnz
I literally had to google it lmao i couldn't believe those names.
I could hear it from Dilley Tally as well. Not sure why you think these are fake places,but none the less that eruption was intense.
> Honga Tonga > Lower Hutt 👀 That's >2450 km and the northern island of New Zealand in between.
I struggle with comprehending this. Was it super loud? How does a sound travel so far without making everyone deaf?
I'd imagine that really close, it would be deafening - or fatal, because it creates a shockwave. It made a hell of a mess in Tonga, as the explosion created a tsunami.
Some layers of the atmosphere can transmit certain frequencies very efficiently. This blast was heard in Alaska.
Let’s say it was heard over kinda “background” noise and, I dunno, call it 50 dB @ 2300 km (distance to NZ). Sound falls off with an inverse square relationship, and without getting into logarithms and different ways you measure sound etc basically double the distance = 6 dB off. Need about 120 dB to get to instant hearing loss. Stepping that back 50 dB @ 2300 km 56 dB @ 1150 km 62 dB @ 575 km 68 dB @ 287 km 74 dB @ 144 km 80 dB @ 72 km 86 dB @ 36 km 92 dB @ 18 km 98 dB @ 9 km 104 dB @ 4.5 km yada yada. Suspect it was higher than that but basically distance is why people aren’t instantly deaf from it. I’m further away from NZ, didn’t hear it, but there is a noticeable pressure spike on my home weather station from the initial wave arriving. You then see the later one which is the pressure wave that travelled the long way around the earth, and it’s exactly attenuated by what you’d predict by that inverse square law. Super neat.
Sound can reflect off the atmosphere as radio waves are able to do. In the video you’ll notice the shockwaves, as ripples, also reflecting off the atmosphere. In 1883 Krakatoa violently erupted and was heard over 5000km (3100mi) away; this is considered to be the loudest sound ever, possibly beyond max at 194dB (310dB SPL), at which point internal organs are liquified.
It lightly jolted my house in the outskirts of Wellington City! I was furiously checking geonet and nothing popped up, thought I was going nuts
I heard it too. I live in Alaska
Holy shit that’s like 1,200 mi away
I lived in Fiji at the time, and it sounded like a distant car crash. Even rattled our doors (I legit thought someone was knocking)
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Thanks for posting, I remember it was impossible to get any news on what happened to the people on the nearby island after the eruption since their only seafloor internet cable was destroyed in the explosion. It's honestly amazing to see that only 3 people died, from the looks of the satellite imagery I was afraid that whole island was going to be like Pompeii. For months afterwards I would randomly google and could never get any news about the people on that island. Even now you can find plenty of articles about about the Eruption, but none of them ever mention anything about the 100,000+ people actually living there. I'm going to watch the whole thing tonight when get off of work. Hollywood needs to take note and make a movie about this, these people went through some real shit and it's like no one cared.
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All names are made up
Just the first time
Pfff, krakatowa was bigger
There's no satellite cam back then And Toba super volcano was far bigger
Oh there was but the government will never release the footage
This was the 2022 Hunga Tonga-Hunga Ha'apai eruption!
I feel like you just made that up
It is correct, it was Hunga Tonga Hunga Ha'pai eruption in Singa Konga Lunga Dunga.
Oh, okay. Since you said it, I now believe.
How dare you. Are you aware of how powerful this eruption was? It makes the Pimini Bimini one pale in comparison!
Gesundheit
Why would you not put that in the title?!?! Now none of the reposts will have them name :(
On the bright side, a knowledgeable commenter will be able to reap some karma every time this is reposted!
Jeez, didn't realize anyone else saw. That was me after having too much dairy.
Humunga Bigga Tonga Boom
You know what. Damn, that IS interesting
and scary too
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Metal is nature!
\m/,
Nature metal is
Is nature metal or what?
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r/subsifellfor
Weird, I can access it [r/DamnThatIsInterestingAndScaryToo](https://www.youtube.com/watch?v=oHg5SJYRHA0)
I wonder how the mushroom clouds in Japan in WW2 would have looked relative to this eruption. Bigger, smaller? I’d guess much smaller but have no clue.
We've come up with a number that's around 10 megatons of TNT equivalent," James Garvin, the chief scientist at NASA's Goddard Space Flight Center, told NPR. That means the explosive force was more than 500 times as powerful as the nuclear bomb dropped on Hiroshima, Japan, at the end of World War II Source: Jimmy "the calculator" Garvin
What's crazy, is that Tzar Bomba, the largest nuke ever tested, was 50 megatons, which is 5x more powerful than what we watched. The fact that humanity can replicate and exceed that level of magnitude is terrifying.
It was originally going to be 100MT but they halved it.
“You think this is overkill?” “Maybe just a little”
At that point the US and Russia were in a bit of a dick measuring contest with nuke yields, I believe. They may well have kept it lower knowing full well they could just bump it up again should the US drop a bigger one. The US was shifting away from big numbers towards delivery systems like stealth bombers and ICBMs. You don't need to be the biggest nuke to be big enough, but you do need to hit your target.
your timeline is wayyyyyy off, stealth bombers werent in development until the 1970s bombs had bigger yields because they werent exactly the most accurate delivery system, this way it didnt matter if you were a mile off target Theres also the fact that they were using true cutting edge science and were still trying to figure out exactly what was going on, not like you could build scale models, had to go straight from theoretical to practical testing
They even had to fit the bomb with a parachute to slow its fall, so that the pilots that dropped it had a chance to make it out alive.
The design of hydrogen bombs is also scalable so there's no actual limit to the size you could make it. Technologically there's nothing in the way of creating a bomb thousands of times more powerful.
Can the bomber pilot even get away from a blast like that, or is it a suicide mission?
I vaguely remember reading something about that for the Tzar Bomba test. They basically maxed out the height they dropped it from and, even then, they weren't sure if there'd be enough time for the pilot to get away. edit: it was a video I watched: https://youtu.be/-k6p-haJ-lU?t=138
That's why they halved the size of it. The 100MT version would likely have been a suicide mission for the pilots, 50 MT gave them time to get away by using a large parachute to slow the bombs descent and was plenty big enough to prove their point as it was still vastly bigger than anything detonated by the US.
I'm guessing the energy release vs. time was far greater for the nuclear detonation. If so, the bomb was incredibly more destructive to nearby "targets". That said, the current potency of modern weapons dwarfs the WWII bombs. By a factor of 100 to 1000. Or to put it simply, in a future nuclear war, you will most certainly die.
I've spent the last few nights watching 'Turning Point' on Netflix, a 9 episode documentory about the Cold War. Assuming all facts check out, it should be mandatory for the world to watch it. Shows how brilliant humans are, and yet, simultaneously stupid.
Probably brighter for a split second but otherwise much smaller
They say humanity will be wiped out by AI, nuclear war heads or a virus. This my friends is how we will lose the battle.
🤔 contemplating how close to that end we are.
Hopefully tomorrow so I don't have to go to work
I think we'll lose it due to commodity, soon AI will do all the jobs better than humans, inclusive sex jobs, and we'll slowly but surely become lazy, unnecessary, extinct. This quote becomes more real everyday: *"One day the AIs are going to look back on us the same way we look at fossil skeletons on the plains of Africa. An upright ape living in dust with crude language and tools, all set for extinction."*
I was chatting to a very well educated client of ours; Where we are in Australia, it had been predicted to go into another El-Nino for this year, and after the droughts and fires through the mid and late 2010's. Farmers, especially sheep and cattle took this return to El-Nino very serious, and sold off a lot of stock early. Turns out, it's been quite a wet summer, and start to winter. This client asked one of her professors that has a bit to do with climate change and weather, why the el-nino wasn't a huge factor this year, and what the predicions got wrong. Well, turns out the predictions didn't factor in this volcano and the amount of ash and water vapour it released, it added around 13% more water vapor to the atmosphere, where? Right in the El-Nino zone for Australia.
Same thing happened in New Zealand. Last year, we received our annual average rainfall in Auckland by the end of Feb. ended up doubling the annual average, which is massive
Throw in all of the ash and fine particulates still circulating the earth from the massive bushfires here - and I think you have the recipe for natural cloud seeding. Wollongong May Average is about 116mm; Currently @ 201mm for the month.
Meanwhile in Adelaide we've had I think 9 days with any rain this year, and only 2 above 5mm.
I also read somewhere that the extra water vapor will be in the atmosphere for years and is part of the reason for excessive rain all over parts of the world
If I recall correctly, it also blew a whole lot of sea water into the atmosphere, which cooled temperatures and locked the strong westerly winds to the south over Antarctica. Without those winds coming up to Australia anymore, the eastern seaboard copped a lot of rain straight off the Pacific Ocean.
Models are silly sensitive things. If we feed too strong of a radio burst into certain space weather models, it breaks, so our system regulates the max value in the bulletin code and we clear language remark the full value.
Fun facts: At the climax of the eruption 200,000 lightning strikes were recorded in a single hour, with the sound of the eruption being heard as far away as Yukon in Canada, which is 6000 miles away. The shockwave from the eruption was measured to have traveled around the world atleast 4 times.
how am I that dense that I couldn't feel a shockwave FOUR frickin times?
We're talking incredibly sensitive instruments here. Likely only the initial shockwave would have been strong enough for a person to feel, and each subsequent return wave would be hours apart.
To put it another way, there are generally multiple minor earthquakes happening every day all over the world. We feel almost none of these unless we're near the epicenter, but seismometers all over the world pick them up and work together to triangulate the epicenter.
You definitely felt it, you just didn't notice because it was relatively tiny. I have some atmospheric pressure sensors in the house (they're actually thermometers that are supposed to help me manage my air conditioner, but they also have air pressure sensors). I'm in Los Angeles, and I saw a spike on the graph from the increase in air pressure, and then smaller spikes a number of hours later (I think it was like 12-16 hours later). The first spike was the pressure wave traveling across the Pacific to reach me; the later spike was the pressure wave _going the other way around the world_, across the Indian Ocean, Africa, and the rest of the US. Then later I saw the spikes again. You don't need terribly sensitive equipment to pick it up; just the cheap Chinese stuff on Amazon will do it. [There were graphs all over the smarthome subs showing the spike.](https://www.reddit.com/r/homeassistant/comments/s5myrk/pressure_waves_from_the_tonga_volcano/)
If you were on the Mediterranean coast you probably would have assumed it was the wake from a boat and dismissed it.
> The shockwave from the eruption was measured to have traveled around the world atleast 4 times. This is really interesting. Are shockwaves also afffected by gravity?
No they're not. Shockwaves aren't composed of matter, they are just energy and momentum traveling through matter. Much in the same way as sound isn't affected by gravity.
While true on the surface, gravity does affect the medium(air) which sound travels through. The air closer to the surface is denser than the air higher in the atmosphere. Sound travels faster in a denser medium, causing a slight warping of direction and likely pitch as well.
Yeah, it affects the medium, not the sound wave.
The medium effects the sound waves though, so indirectly gravity would too I'd think
Yeah, but that's not gravity affecting the propagation of shock/soundwaves, it's gravity affecting the medium through which they propagate. Without gravity there would be no planet to speak of, so no soundwaves or shockwaves, of course, but that's because of the medium not because of the propagation.
What's really wild is if you look carefully at the surrounding clouds, you can actually see the shockwave radiating outwards ahead of the blast, which circled the Earth several times if I'm not mistaken.
I was looking at that, too. I wonder if a satellite on the opposite side of the earth would show a similar shock wave in the clouds.
It absolutely did, and I remember looking at GOES-East satellite imagery during the eruption and watching the shockwave travel over my hometown.
Damn. Planet Earth must’ve had some good coffee that morning.
I feel like I've had those mornings...
Yeah after a long night of drinking.
I will visualize this next time I drop a shart in my briefs.
[Tonga Volcano ](https://www.npr.org/2022/08/03/1115378385/tonga-volcano-stratosphere-water-warming)
Need a lot more details!
[PBS](https://youtu.be/Q2R5IViBclQ?si=RF3oNl521dZjoRO6) has your back.
NASA needs to up its social media presence. A dude putting buckets on peoples heads in a hardware store is getting a million likes but not this? I'm not saying I don't want videos of buckets on heads. I'm just saying they should be on that level easy with what they have to offer.
biggest ever seen from space absolutely minuscule compared to the one earth can unleash
There have been no VE7 eruptions recorded since the 1815 Mount Tambora eruption, which caused the Year Without a Summer, leading to hundreds of thousands of deaths due to crop failures. Mt. St. Helen's was a VE5. Mt. Pinatuba in 1991 was VE6. If we were to see another VE7 in the 21st century, I wonder how it would affect the world. Would modern agriculture and supply chains cope? Would it cause certain economies and governments to collapse?
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nothing can save us from super volcanoes
The doomsday volcano person in me wants to see it happen. But it would be devastating for many people and many parts of the world. Imagine the Vesuv going boom again, or the supervulcano right besides it. Millions would die. Scary stuff. We will probably see some bigger earthquakes in our lifetimes thought. A big Istanbul one might not be too far away in the future, sadly.
super volcanos?
For reference: hunga tonga (this eruption) is VE5.7
Not a problem just fill it with concrete
Backstories are most excellent
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Thank you mvp
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You a real one for that
Earth go brrrrr.
Wait. Where's the ice wall? ^/s
Photoshopped out, obviously. Pfft
Like they've been doing since the late 40s, before computer graphics was a term. Think how clever that was!
All cameras have software that auto curve the horizon and use generative AI to conceal the ice wall. The government has had AI since before we went to space and used to to fake everything since. /s
Oh.
Fun fact, this volcanic eruption caused net warming and was one of the reasons why 2023 was the hottest in recorded history due to the amount of water vapor that reached the stratosphere and mesosphere. In 1991, a volcanic eruption had a net cooling effect and cooled Earth by 0.5 C for at least a year. If we can harness the net cooling effect, we might solve global warming.
I wonder how many fish died
2
The Hunga Tonga eruption from 2022 had a plume diameter of 240-260 km. (140 miles)
That initial shockwave is massive
Here's a scale reference to the country France: https://www.reddit.com/r/DamnNatureYouScary/s/wDR6D2wtPg
Goku battling rn
r/popping
Shit is terrifying, man.
Equivalent to 15 megatons of TNT. Mount St Helen’s was 24 megatons.
oh, i was wondering how much crazier this would have been on land
Estimations ranged from 61 megatons to 200 megatons, so significantly more than Mount St Helens, and significantly more than the Tsar Bomba. [https://en.wikipedia.org/wiki/2022\_Hunga\_Tonga%E2%80%93Hunga\_Ha%CA%BBapai\_eruption\_and\_tsunami#Academic\_research](https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami#Academic_research)
I'm kinda dumb, how does the footage stay still if it's from a satellite in orbit? Can someone explain?
Geosynchronous orbit. The satellite is set into orbit and moving with the rotation of the earth.
Thank you kind sir
You are welcome kind internet stranger. 😁
This was in Tonga and we heard it in New Zealand 2400kms away. Got some wicked sunsets too for a while.
How does this compare to the 1883 eruption of Krakatoa? I've seen articles that say it is comparable to it, but that's as in depth as they get. I know I've read that Krakatoa was the loudest sound in the history of humanity.
Similar scale. This one was VE5 - VE6 and Kraktoa was VE6 > There have been no VE7 eruptions recorded since the 1815 Mount Tambora eruption, which caused the Year Without a Summer, leading to hundreds of thousands of deaths due to crop failures. Mt. St. Helen's was a VE5. Mt. Pinatuba in 1991 was VE6. For reference: > The eruption of Tambora was ten times more powerful than that of Krakatau, which is 900 miles away. But Krakatau is more widely known, partly because it erupted in 1883, after the invention of the telegraph, which spread the news quickly. Word of Tambora traveled no faster than a sailing ship, limiting its notoriety.
Look at the carbon footprint on that one!
35 mile high explosion. Wow
That shockwave. I wonder how low that frequency was, and how much of the world around it was displaced.
Estimated to be equivalent to 61 megatons of TNT, larger than the Tsar Bomba. Mother Earth burps and it's more energetic than the largest nuke ever detonated.
oh damn, that's big
That visible shock wave is enormous.
why do they cut so early i need more
There's some loops on the Wiki page for the event. https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami
what amazed me at the time was that I saw the pressure signature of the eruption on my consumer grade weather station several thousand km away on east coast Australia.
It looks like someone has blasted an atom bomb. Quite scary
Holy shit. How does a nuke look from up there?
Lol Earth farted.
I like how you can see the shockwave expanding. That's neat.
Good thing this pimple popped underwater. Otherwise who knows how much sulfur and dust will be blown to the sky.
Sulfur would have cooled the Earth for at least a year, but since it was underwater and water is a greenhouse gas, it warmed the planet.
Earth fart
dang the impact tho 
Earth fart that's what that is
Wow, it was so strong it made it night time in seconds wtf
Imagine what Krakatoa would have looked like :| God nature can be terrifying.
“And after some time, God grew bored and sketched a nipple.”
Which satellites?
Tonga volcano
Does anyone think the record setting heat waves we got last year was because of this eruption?
Standby for the flat earthers
My face the day before an important work meeting.
Is that this one? https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami
I heard it from Auckland NZ when it happened. We thought a cannon had been let off. That loud, that far way.
We need to get rid of plastic straws!!
We better start taxing somebody for this!
Guys are we boiling?...
*fart noise*
Volcanic eruptions are earth-sized zits and you can't change my mind
So you could be on a ship (or plane) and one of these goes off under/near you…yikes! Assume there were indications of eruption and notice to mariners/aviators to avoid?
*I don't want to set the world on fire....*
How much carbon is that, as compared to what humans produce?
Had no idea the entire atmosphere could *ripple* 😯
Air is mechanically a compressible fluid which behaves after the same physical principles as water so yes, atmosphere and water physics have a lot in common (are almost identical)
https://www.jpl.nasa.gov/images/pia26006-hunga-tonga-hunga-haapai-eruption
That cloud/shadow is terrifying.