Megatsunamis: World's Biggest Wave
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- čas přidán 4. 06. 2024
- Megatsunamis are not only much larger than your average tsunami, they also form under different conditions. Good news: they're extremely rare. Bad news: they might not be for long.
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Sources:
www.nature.com/news/huge-land...
www.nationalgeographic.com/en...
itic.ioc-unesco.org/index.php?...
www.theatlantic.com/science/a...
www.nature.com/news/island-bo...
science.sciencemag.org/conten...
eos.org/articles/huge-global-...
www.nationalgeographic.com/ne...
nsidc.org/cryosphere/arctic-m...
www.nationalgeographic.com/ne...
www.bbc.com/news/world-asia-3...
ui.adsabs.harvard.edu/abs/201...
Images:
commons.wikimedia.org/wiki/Ca...
www.istockphoto.com/vector/li...
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commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Ca...
www.istockphoto.com/photo/vac...
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“You need a lot of buddies” well it looks like I’m not making any megatsunamis
Same :(
I'm lonely so this will never happen. =(
Same here, maybe we should all join Sargent Pepper's Lonely Hearts Club Band.😂😂😂😂😂
lol
😪😔😩😫😢😭😞
*Earthquake* causes *Tsunami*
Now
*Tsunami* causes *Earthquake*
We've reach the Endgame
Earthquake motor, each one creates each other.
In Soviet Russion, Tsunami make earthquake
An tsunami causes an earthquake causes a tsunami causes an earthquake causes a tsunami!
@@masonjohnson4310 When I saw the original comment, I already knew I would find this respond underneath it.
Oh how the turns have tabled
Come on Scishow, this is 2020 don't bring this up...it will happen.
Yep everything is happening in 2020!
@@gwensimmons_gigi1629 Come on... not actually *everything!*
But we're working on it, tho... :))
Check the Megatsunami that might happen in La Palma... It might destroy the East coast of the US.
@@frikativos that has been debunked numerous times.
This is the second time a Mega Tsunami popped up for me.
Yesterday I was watching "Tidal Wave"
This is very concerning.
This is literally one of the most horrifying things I've ever heard.
its adrenalinic , like now science has to be more implemented to prevent this, or it will happen :((
If thats one of the most horrifying things you have heard then you havent heard about LGBT acceptance in the modern society, now THAT is horrifying.
@CR Trolling requires they not actually believe the vile filth they spew. Sadly, many of these uneducated bigots are just repeating what they honestly feel.
Ganara426 get better bait pal we've heard that one before
@@Ganara426 whats horrifying is that you managed to type this out with merely just a brain stem, quite an accomplishment bucko
"today is the last day of April."
me: what do you mean? it's already May, oh yeah timezones
no pin 4 u
"Today is the last day of April."
I was all "ok so, the world is ending, yeah? That makes sense. cool."
Sci show living in the past smh
Stop with the Al and Gretta show fake news!
So what happens in May that I should know about?
Hey SciShow team, just chiming in to say I frickin love the wave height comparison graphics in this video, it is such a nice way to make meaning out of the increasingly higher numbers. Great job with this one
E P I can’t relate. He didn’t give me the numbers in “football fields.” Oh well. 🤔
A tsunami that wasn't caused by an earthquake?
So, no one was able to... sea it coming.
Wave didn't see it coming.
Out
Gtfo
...looking cool, joker
K
I'm getting flashbacks of Miller's planet from Interstellar 😱
They were more mega tides than tsunamis. Though anything that would effect the water like that would tear the surface apart.
Easily one of my favorite parts.
“Those aren’t mountains”
It was the same for me!
Same!
The Lituya Bay megatsunami was a really fascinating event, especially as told by survivors from a boat that accidentally rode the wave. You should do an episode on that.
Paging the fascinating horror channel!
"When the ebbing tide retreats
Along the rocky shoreline
It leaves a trail of tidal pools
In a short-lived galaxy
Each microcosmic planet
A complete society
A simple kind mirror
To reflect upon our own
All the busy little creatures
Chasing out their destinies
Living in their pools
They soon forget about the sea..."
_~ Natural Science by RUSH_
I love it! Longtime RUSH fan here. Thank you for this.
🌹
My daughter’s Great Great Grandfather was William Swanson and he was one of the only survivors that docked at the bay when this happened! Very cool to catch this on CZcams and that someone mentioned it!!!!
WOW!
WOW!!!
Your daughters great great grandfather? So your great grandfather?
@@madLphnt Father's side...
@@KT-83 right
There's always more to come.
Always a bigger fish?
@@sdfkjgh
Yeeeep!
That's not ominous at all...
Jokes aside, please no foreshadowing.
I hope not... I just woke up from a tidal wave nightmare🥺😂
I've met one of the people who was at Lituya Bay during the earthquake. It's uninhabited, but fishermen often shelter there from storms. There were three boats in the bay at the time, and two of them were wrecked outright, but the third was actually flung over the island to safety. He said it was more of a giant splash than a wave, where it seemed the whole wold was engulfed in water.
"Megatsunami don't last long..."
Don't worry,buddy. I understand you.
Oof!
The Vajont Dam Megatsunami is a fascinatingly terrifying event, would recommend reading about it
When Greenland was mentioned i already had a feeling the Tsunami was caused by displaced landmass, however my main thought was maybe a Large chunk of ice from high up went tumbling down after breaking off.
Stop with the Al and Gretta show fake news!
That's what I'd expected too, I was actually surprised that it wasn't.
1:20 "You need like al- You need a lot of buddies" lol the stutter gives off major Rick vibes
Its almost end of April, still waiting for the earth just explode.
Stop with the Al and Gretta show fake news!
@@curtdenson2360
"How dare you!"
May
July and nothing happened 😭😂🤚
May 2020: *It’s free real estate*
I died!
wait.
Stop with the Al and Gretta show fake news!
Some arctic guy: "Global warming won't affect us"
Megatsunami: "I'm about to end this man's whole carrer"
I’m about to end this man’s whole life*
Surfers: wack.
Joke aside, people in the arctic and low-lying tropical islands are probably amongst the _most_ acutely aware of the effects of climate change.
its something i wish people in washington would take seriously. that and many other world government higher ups.
GladDestronger yeah, bc China really cares so much about pollution and climate change 😂😂😂 it’s sad but inevitable at this rate. We’re only 1 country we can’t save the world alone
Well you missed the one Aang created in the northern water tribe.
"but here's the bad news, megatsunamis are very rare..."
"...but climate change may make them more common"
@@samiraperi467 ok Greta.
@@samiraperi467 Yeah. I'm not going near the ocean anymore.
Tidal waves couldn't save the world from Californication
You know about it too eh? Sucks for me, I live in Oregon...
@@raxleberne4562 same here :( Portland has gotten so bad
They're turned down a cloth shop from the 19th century or so, for a salad bar place here in France
Surf boards....
That's the solution
Matt 68 yeah I’m in Portland and scared too tbh. I hope you’re okay Matt
*is in the middle of one massive global crisis*
Me: let's watch a video about the stuff of nightmares come to life!
...
I need to be more kind to myself lol
lmao
Watch "Train to Busan" or "Tidal Wave"
I've been watching a lot of asian disaster films recently :(
Me: has anxiety
Me: *anxiety i n c r e a s e s*
"You need a lot of buddies"
*cant relate*
"May Megatsunami" kinda has a ring to it
Now where did I put my snorkel...
Maygatsunami
Travis Brown Gaymattsunami?
Saruman, I think you better find your snorkel, there are Ents on your doorway literally opening river dams!
There was a dad and his young lad on their boat about 5 years ago who were fishing up north and a land slide happened at the end of the bay and made a huge wave, they said it was like hearing a jet engine and then they just saw a wall of water. Luckily the boat just rode the wave and no one was hurt but can you imagine seeing that coming towards you on a nice quiet day fishing with your kid. There's photos of the aftermath and on both sides there was hills and all the life had been scoured clean. There's just a line with rock on one side and green the other
"The resulting wave dissipated quickly, but it was still enough to raise the water level on shorelines about 30 kilometers... away"
My jaw almost dropped 😂
On Miller's planet, these are quite frequent, these are called "Mountains".
Yeah, heard there are actually no sustainable life forms on that planet despite all the water
Saddie That could make sense seeing as aside from the gravity and Megatsunamis, time there also moves incredibly slow which means while the rest of the universe had billions of years to develop life, that planet may only have had thousands
I've been watching Sci Show for years. I liked their videos. That is why I decided to create my own sci-fi/futurist Channel 👍🙂
How very wonderful for you. So wonderful. Such a good thing.
i love the newer pop-up text graphics! very impactful
Can we all just take a moment to side-eye the Canary Islands ?
Oh,Hell,yeah, goodbye Eastern Atlantic Coast of N.America when that happens(and a lot of European coasts as well).
IF it happens. Only hypothetical that the landslide can be that big. I guess we should never discount the risk though even if its small
@@PC4USE1 I can't bring myself to believe those models due to energy conservation. A wave front caused by a landslide that carries some amount of energy (mostly limited by the landslide's energy) spreads out across the east Atlantic coast, and still causes this giant wave to wipe out everything? It's not supported by most current studies, and at most you might get some larger than normal waves in certain places due to constructive wave interference.
@@LordViran To to contrary, I find it easily believable. When the Cascadia Subduction Zone went off in 1700, it was able to cause an orphan tsunami that made it all the way to the other end of the Pacific ocean (which as you should know, is much larger than the Atlantic ocean) and still did significant enough damage that the Japanese thought that it was important enough to chronicle. To add to that, 1.5 million years ago, on the Hawaiian island of Molokai, 1/3rd of the northern portion of its volcano collapsed into the ocean (this is pretty much the exact scenario for the hypothetical Cumbre Vieja megatsunami) and generated a wave of over 600 meters high. The tsunami from the 1700 Cascadia Subduction Zone earthquake was projected to be ~100 feet; so if a tsunami that is ~100 feet tall locally can cross the whole pacific ocean and still cause notable damage on the other side, then it's almost certain that in the event of a collapse of the western flank of La Palma would result in a megatsunami that by the time it reaches the west coast, should dwarf the height of the 2004 Indian Ocean tsunami and would be a major catastrophe for the east coast of North America.
Really enjoyed the animations. They enhance the experience a lot without being obtrusive or cheasy. 👍👍 love the vids, keep up the great work!
My inner "Adrian Monk" really wants to reach into the screen of my computer and adjust your collar! But nonetheless, your onscreen presence and consistently enjoyable videos are most appreciated, Hank. :-)
Are you watching H& I ?
This is the first time I've ever heard of that wave!
I'm a bit disappointed that you used a graphic of a breaking wave. It's time people learn that tsunamis don't look like that; they're colossal mounds of water, not breakers.
This
Exactly. Look at all the Japanese tsunami footage online. Not a breaking wave in sight. Just endless incursions of water.
Is this also the case for megatsunami? I know zilch, but if they form differently could they result in cresting waves? Either way, I'm trying to figure out what a several hundred meter to over a kilometre tall mound of water would look like even if it's not a breaking wave.
You know I agreed at first, but then if it never broke and fell like a conventional wave how did the one in greenland register a 4.1 on the richter?
@@Space_Parrot Was it the wave that registered or the landslide?
So the one in Alaska was 524 m high, the second tallest wave in the video behind the astroid impact that probably wiped out the dinosaur's....I would say that deserves a bit more attention in a video!!!
i was just thinking that sounded too big like its so much bigger than all the other ones i gotta look that up
4:04 I would've used a mountain that is 1,5 - 2,0 km high. Now it looks like a tiny little splash next to Kilimanjaro :D
I don't know. For people who know what Kilimanjaro is, it's pretty impressive still. It is the fourth highest peak on Earth after all.
@@scaper8 Whaaaat? It's not even in the top 100 of highest peaks on Earth...
thnaks scishow, one more thing to keep me up at night
And i thought a regular tsunami was my biggest fear 😭😭
exactly!!
The Wave by Susan Casey -- great nonfiction book about giant waves
Welcome back to the Old Testament, what with all the fires, floods, plague and the false idol in chief.
I remember a program back in 2001 about megatsunamis and how one would potentially hit the West Coast of America at some point in the near future.
Here’s part of it... czcams.com/video/XoYBAsHHXsk/video.html
At 4:45, there’s the possibility of one being triggered like the Fogo one but at La Palma in the Canary Islands.
I hear that when that happens it'll race across the Atlantic and threaten the entire east populations of the Americas.
@@Liammort Yes. And it is imminent (geologically speaking, and perhaps in normal terms too).
I'll pretend I didn't see this today.
So I can sleep at night.
This one can't swim.
@@Liammort That's actually just the worst-case scenario, and that possibility is debated among scientific circles.
Hank, you’re a joy. Keep on keeping on.
I love hydrology! Mega-tsunamis and rogue waves are endlessly fascinating to me.
I do not know why the sudden picture of "a lot" of your buddies jumping in the ocean at the same time made laugh. It was only for a millisecond. I was playing a game and only watching from the corner of my eye and what I saw was not what I expected. Great job.
Thank you for using the metric system. Much appreciated.
THIS has been my stress nightmare for 20 years. Thanks for publishing this when I already see this every night due to COVID lol
Here in the western part of Norway there's mutiple places where rockslides and the following megatsunami could destroy small towns and villages.
The film "The Wave" (2015) shows in a good way how the town Geiranger (famous tourist attraction) could be wiped and how it would look for the people seeing it coming towards them.
A decent movie and I would recommend it for people interesten in seeing more about megatsunamis.
Fogo wave (170 M) is twice as large as Greenland wave (100 M) *and at the same time* Lanai wave (300 M) is twice as large as Fogo wave (170 M)
Mind blown 🤯
terrifying! thank you so much!
Humans: throws trash in the ocean
Ocean: *Uno Reverse Card*
Not as tall but still a mega tsunami was the Storegga slide, a massive 3500 cubic km slide off the Norway coast that completely buried the land between Britain, Denmark and the Netherlands, called Doggerland, some 8000 years ago. Much of this land is still just barely below sea levels (5-50 meters) and evidence of stone age settlements and prehistoric artifacts has been found, as well as forestry. This is where most of Europe's oil and gas drilling occurs, and has therefore also been 3D mapped and explored by these companies. Ice melting was mostly to blame as sea levels rose over 100 meters, but the final blow to Doggerland was a mega tsunami.
Wow!! Learned something new today... megatsunamis , who knew!!
I really love Scishow's sense of humor
2020, the year of Mega Tsunamis
That is amazing!
This is just shot in the dark. I saw a video probably 20 or 30 years ago now. It was a home movie (possibly shot in harbor in Iceland - not sure). What I recall is a landslide on one side of the harbor, and the material seemed to disappear below the water without incident. Then there was a short delay, and then violent waves damaged the boats docked nearby. I've searched for this video from time to time on CZcams but I never saw it again.
Ohh, this gives me back flashbacks from The Day After Tomorrow lol. Just seeing that statue of liberty next to a huge wave :P
then only to find out it's one of the smaller ones compared to what we discovered
I dont know what it is by this dude is looking good. Whatever your doing... keep it up!
spent some time fishing in lituyah bay, my captain actually ran aground when the charts said there should be 360 ft depth of water, a lot of land movement there.
The Krakatoa eruption in the 1800s produced a 37 meter high wave, just a few meters shorter than the Tohoku Tsunami of 2011. This is because the energy release was so great it basically evacuated the seabed surrounding the island. Scientists have also linked tsunamis to the sudden rise or fall of lake beds in volcanic craters due to magmatic acitivity, and it has even been hypothesized that what made the Latuya Bay Tsunami just so big was the landslide striking a glacier on the way down, and adding even more mass to the initial weight of the slide.
Randall Carlson: **laughs in meltwater**
Epic informative video
I haven’t seen a scishow in a while but I saw megatsunami and I CLICKEDDD
Very timely. My 7th graders have been designing a tsunami warning system. Thanks.
I love SciSHOW!!! THANK YOU FOR EDUCATING ME! My favorite channel
It would be my dream to do what you guys do. I love teaching people about many things they are unaware of...When I see that LOOK...that moment when you know they just heard something they will never forget., you feel a very true connection that lasts forever.
Molokai spilt in half and chunks are so big you can see the pieces that rolled 500 miles away from Molokai. Also created the worlds largest sea cliffs.
The island of La Palma in the Canaries has a volcano called Cumbre Vieja (Old Hill/Summit). If even half of that mountain falls into the Atlantic the entire eastern seaboard of North America will be be decimated.
Lituya was more of a splash and how was the gulf wave 1500m tall when the waters in that area around that time were only 300m deep?
The shock wave generated from the asteroid impact would've pushed water away, causing it to pile up. Kind of like slapping a puddle.
In coastal science there is a distinction between wave height and wave runup elevation. While the wave runup at Lituya Bay may very well have reached 524m in elevation, the truth is that the actual wave height is unknown. It is known, however, that waves can cause runup elevations many times greater than their wave height. Moreover, there is, typically, a positive correlation between runup elevation and wave length, meaning it wouldn't be unreasonable to see tsunami runup elevations on the order of ten (possibly one hundred) times their wave height.
There're quite a few comments mentioning the Canary Islands (I assume all of us saw that same documentary on megatsunamis when we were younger), including some wondering why it wasn't mentioned in this video. First, keep in mind what is said in the video - megastunamis dissipate quickly and tend to cause far more damage locally. I would encourage you all to look up the latest research on this particular scenario - not only is the old documentary's scenario assuming basically half a mountain dropping in at once, which has been practically ruled out, but even if that scenario is granted, latest models show it dissipating quickly and resulting in ~10 meter waves in specific locations in the Americas (due to wave interference). So, no, New York and Miami almost certainly won't both be wiped out from one giant wave generated from a landslide.
I am glad I’m alive
Fitting, and I just had a nightmare about a tsunami last night.
The original viking colony in Greenland is recorded as vanishing without reasons. People sent to investigate after not hearing from them for several years found the colony both empty yet devoid of any signs of panic, hardship, or evacuation, as if everyone just vanished all at once.
I wonder now if maybe those viking colonists were swept out to sea by a tsunami.
Tsunamis, while terrifying, always fascinate me.
The Berkle creator 18km wide, under 800m ofor the southern Indian ocean, was discovered by following the direction of back-flow chevron ripples, 200m high, on Madagascar and Australia. This implies a five thousand year old mega Sunami of astronomical proportions. A volume of water of several hundred million tonne might have changed the coast also of
India, New Zealand, and the Arabian Gulf. Areas known to have suffered.
Cool, i was wondering about May
A bit disapointed you didnt mention the Vajont Dam disaster of 1963
On 9 October 1963 a massive landslide of about 260,000,000 cubic metres (340,000,000 cu yd) of forest, earth, and rock fell into the reservoir at up to 110 kilometres per hour (68 mph), completely filling the narrow reservoir behind the dam. The landslide was complete in just 45 seconds, much faster than predicted, and the resulting displacement of water caused 50,000,000 cubic metres (65,000,000 cu yd) of water to overtop the dam in a 250-metre (820 ft) high wave.
I don’t know who you are, but I like your SciShow presentations best.
He is Hank Green and he's been doing this from the beginning.
The village of Geiranger in Norway is going to be on the receiving end of one of these someday. A fictitious version of this future event is shown in the film The Wave.
I'm immediately reminded of all the hype and click-bait around Cumbre Vieja in the Canary Islands over the years.
I have often dreams of tsunamis
starts by me always warning people a tsunami is coming "Look at the receding water" i say
I start to run uphill but some people stay
i see it coming in the distance
tsunami hits we get stranded on top of buildings
we see people washed away
i scream "I tried to warn you"
i wake up
I thought Megatsunami was the name of a film, knowing that they're a real thing makes it even worse. Thank you science. Now stop scaring me. Yay science.
A episode about rogue waves and holes would be nice.
And now I know how to pronounce "Archipelago"
Canary's islands have a steep sloop facing west into open Atlantic, that splash could generate a wave that attacks American east coast!
They way Hank says "you need a lot of buddies" at 1:20 gave a real Rick & Morty vibe
like like you need a lot of buddies- i loved this
idk why but those pros and cons that popped up on the screen towards the end made me laugh.
i love you guys
Killer waves, bro~
I literally searched for large tsunamis yesterday!? quit tracking me scishow! :P
If an other tsunami happens, I am going to apologize in advance that my mother decided to jump in and go for a swim.
I can't wait for the NEW! SUPER MEGATSUNAMI to release
**light through the window goes suddenly dark, everything on the table rattling**
huh... whats going on out there....
waves reach heights on land that are unseen at sea because the wave slicks the ground and ramps up it with very little height still moving uphill under inertia; meaning none of the waves were that tall without climbing the terrain to achieve that height perspectively: evidence suggests a wave 300m tall but a 100f wedge of water would reach 300m high speeding up the terrain until the force behind it wanes. Super fast translated movement makes super fast tsunamis.
Happens in lakes too, like Seton and Anderson lakes in BC.
Ah yes... I've had many bad dreams featuring these