The Ground is Rising at Iceland's Largest Caldera; Magma is on the Move

[@GeologyHub]

For the first time in a few years, magmatic uplift is ongoing in Iceland that isn’t at Askja or the Reykjanes peninsula!

[@independentskarab7775]

Joever

[@therafnquads1980]

When was the last time this particular volcano erupted do you know?

[@kamildowejko2254]

​@@therafnquads1980In 15th century but it was Bardarbunga intrusion, so last eruption from this system was in 11th century

[@GeologyHub]

@@therafnquads1980Torfajokull last erupted in 1477 CE.

[@Kongokongokongo]

@@GeologyHubthat eruption was partly affected by bardabunga

[@EraX52]

I was already intersted in volcanoes and geology right as a little kid, now i know even more knowledge this will definitely help when i graduate. Thank you.

[@peteparker7396]

No, no it won’t. If you are going for a PG nothing is better then actual field experience. Signed a real PG,

[@fishingthelist4017]

It is interesting that there are so many types of lava that erupt in such a relatively small area.

[@umbertogorena9852]

A very good and interesting job. BRAVO

[@user-Carrie69Wales]

Thank you for sharing 🌋🧡

[@JarnoOverwijk]

The most interesting thing of this intrusion is that, since at least the Holocene, Torfajökull has behaved 'passively', i.e. only erupting when magma intrudes from the neighboring Hekla and Bárđarbunga volcanoes. Hekla intrusions bypass the magma chamber, so they only erupt basalt on Torfajökull's fissure swarm. Bárđarbunga's intrusions that make it this far, however, end up in Torfajökull's magma chamber, where magma mixing occurs. This forces rhyolites out, before basalt is erupted (and thus producing a lava flow). So for Torfajökull to have an intrusion on its own, without changes noted at the usual suspects, is unusual.

[@TBMAvenger]

The area around Lake Superior has very different geology in the Keweenaw Peninsula than elsewhere in Michigan. Even the western & eastern regions of the Upper Peninsula of Michigan are vastly different. An ancient rift zone made the region around Lake Superior very rich in metal deposits from raw copper, iron ore, nickel, & gold. Many sulfide deposits were put down with precious metals that are still mined today. This area has always fascinated me & maybe worthy of an episode.

[@chrisl7839]

I'd love to see an episode covering this area. As a resident, Michigan's geology has always been interesting to me.

[@beatricetreadwell5785]

Another very helpful and clear discussion! Thanks so much!

[@scrappydoo7887]

I love the clips and graphics you used for this vid 👍

[@anitamitchell3452]

Thanks for keeping an eye on Iceland.

[@MyKharli]

Yes air travel disruption please , clear and quiet skies was truly wonderful .

[@Guillaume6776]

Thanks your content is always great ! I have a topic idea : the geology of Rio de Janeiro landscape, especially sugar loaf, pedra da gavea, dois irmaos...

[@retropipes8863]

Interesting. This will need to be monitored. Thanks for reporting!

[@bartjes2509]

Nice, this is all pretty worrying. The region is very beautiful and attracts many hikers. The landscape is pretty unique and the Laugahraun lavafield has a lot of obsidian. When there is an eruption that comes into contatc with a large body of water or ice, the result may be ash clouds that contact glass particles and we have a similar event as 2010 when air travel accross the North Atlantic was severly disturbed. Besides the Torfajökull glacier itself there are many lakes and rivers in the area

[@Iambrendanjames]

Tourist season is almost over though and this is the highlands. but if something big occurs it wont just be a tourism issue.

[@dakotadobbs4431]

Your channel has made my interest in volcanos and other geology double I also have you ever heard of Flynn's lick impact crater Its close to where I live and all I know of it is that NASA used it for astronauts

[@GeologyHub]

I had heard of this. One of my viewers who lived fairly close offered to take a few photos of the region! I’m planning to eventually cover that ancient Devonian era impact site.

[@OSRP_Productions]

Did you know that Smith rock was formed by the crooked river caldera

[@dakotadobbs4431]

@@GeologyHub I have a few pictures of the area

[@dakotadobbs4431]

@@GeologyHub would be glad to send you some of them

[@TheSpaceEnthusiast-vl6wx]

A rhyolitic volcano...Same with Katla, even though the volcano may not erupt, we should still watch it due to possible Jokulhlaups (Sorry if I spealled it wrongly.)!

[@uhcsheep223]

Pretty concerned on how close the volcano Katla is to this volcano as Katla has been pretty active over the years and still 'overdue' for an eruption. Do you think that if this volcano does decide to erupt that it has the potentional to destaplise Katla & possibly cause the eruption there? Was curious if there had been previous eruptions that co-inside when Katla erupts afterwards. Doesn't look so good for the people in Iceland with quite a few of these volcanoes showing signs of unrest especailly ones that are known in the past to have big eruptions. Keep up the great work & I do love learning more about Iceland's volcanoes at depth with your videos :)

[@Dranzerk8908]

Something unnerving about that huge lava flow inside that lake. Not sure if lake was before or after the lava flow, but its like..off putting to see. lol

[@catcando1131]

I had to rewatch to catch this and I must agree.

[@jakeaurod]

Some of those graphics with titles only pop up for a short time. I pause them to read, but the KZbin video control overlay blocks it. Are you familiar with the concept of _Title Safe Area_ in television? You may want to move all graphics andtext up about 60 pixels. I've seem several youtubers now publishing in a 2:1 aspect ratio letterbox to give 60 px on both top and bottom. I wonder if title safe or action safe areas is why.

[@Tjalve70]

Just a note on pronunciation of Icelandic names. Both Fagradalsfjall and Torfajökull has the double-L at the end. In English, this would just be pronounced as an L. I notice that when you pronounce Fagradalsfjall, you seem to pronounce the LL as a K. But when you pronounce Torfajökull, you prounounce the LL as an L. Both of those are wrong. In Icelandic, LL is pronounced as TL. So Fagradalsfjall is pronounced as "FagradalsfjaTL". And Torfajökull is pronounced as "TorfajökuTL". Given that I assume you will be pronouncing a lot of Icelandic names on this channel, I thought it might be useful for you to know.

[@fishingthelist4017]

Geology is easy. Icelandic is hard.

[@biogeopaleo2736]

Jökull(glacier) is pronounced as "YökuTL" not "jökuTL"

[@Tjalve70]

@@biogeopaleo2736I was focusing more on the TL pronunciation than other parts of the word. Technically, Torfajökull is pronounced ˈtʰɔrvaˌjœːkʏtl̥, but I'm not sure how many people know how to read that.

[@Sonny_McMacsson]

Isn't it some weird (to me) sound coming from the side of your tongue like you're going to imitate Donald Duck?

[@Tjalve70]

@@Sonny_McMacssonWhat do you mean? The TL sound? It's how you would pronounce "entiTLement", or "batTLefield", or a bunch of other worlds.

[@TomSuntotheMax]

Love the lava lamp footage.

[@SCW1060]

Mr Hub I'd like to see you do a video on what determines what type of lave gets erupted Than you

[@CaradhrasAiguo49]

1:13 Do you have a placement for 1784-85 Laki on this chart?

[@yomogami4561]

i follow gylfi at 'just icelandic' he's a videographer using drones a lot [including a new thermographic one]. he's not a scientist but relays data well with beautiful cinematography in fact provided some footage to geologyhub recently i guess iceland in an upswing of geologic events for the next couple hundred years

[@Thunderb3Martin]

Yeah he is good :)

[@yomogami4561]

@@Thunderb3Martin he was talking about this area yesterday

[@monicawarner4091]

​@@yomogami4561 • I follow Gylfi too. I like his dry sense of humour as well as his informative videos on Iceland...and its horses of course! 🙂

[@b.a.erlebacher1139]

He has a wonderful eye for videoing the beautiful and surrealistic landscapes of Iceland.

[@stevenweller1673]

The fellow also has a drone with a thermally sensitive camera...very useful and relatively neat-o... S.W.

[@terryleiter3241]

Oh my goodness dude. Correct me if I'm wrong but I could have sworn you predicted Tunga to be a 3 or 4. I'm not certain of that but I can see it going like that

[@StoneTitan]

An informative video. Though I must admit what really caught my curiosity was the image with the green lines at 3:35 it kinda looks like a cartoonish human. Little short, fat with his hands on his back, a classic way for someone walking around in circles while thinking

[@schokoladenjunge1]

I'm a little worried about this, knowing my family likes to do vacations on iceland. Is there any educated guess you can make on what timescale these intrusions could move upwards and cause eruptions?

[@PolarBear69o]

I'm guessing if it was going to go off it wouldn't be for another few months. But I don't know enough to tell you anything else

[@michaeldeierhoi4096]

Keep in mind too that in 9 out of ten intrusions there is no eruption at least immediately. All of these volcanoes will eventually erupt, but it's to early to say when.

[@mistysowards7365]

Wow. I never thought I'd get to witness a rhyolite eruption but maybe...... if not here then maybe in Alaska or PNG

[@nortyfiner]

According to en.wikipedia.org/wiki/Rhyolite there have been only four rhyolite eruptions since the beginning of the 20th century, so it's definitely a unique event.

[@TheKeenTribe]

Is Katla a concern?

[@nortyfiner]

Torfajokull being a fairly big caldera, I wonder if this uplift might be "resurgent dome" type activity.

[@ncpcast]

Bring it on.

[@mikemashburn155]

Wow, fascinating. Hope the people of Iceland don't experience a disruptive eruption.

[@michaeldeierhoi4096]

A disruptive eruption is inevitable. It's just a matter of when.

[@IO-zz2xy]

In the Warden / Harrismith area of South Africa there are some brilliant examples of ancient volcanic activity. Some increadable examples can be seen of old volcanic lava "plugs" topped by subsequent, and probably much later ash layers. The top softer layer being weathered looking like icing atop a cake. I am sure these are some of the best examples of such activity in the world. You might want to look into these formations. Regards from South Africa

[@mistysowards7365]

I believe i found a semi recent huge caldera offshore of the pacific Santa Cruz islads in Western pacific. If your bored enough please see what you think, and if theres any info on it i think it would make an amazing video. Thanks

[@bobdrooples]

Sweet.

[@Trylobyte]

Askja would be interesting maybe? I think there has been some movement there recently

[@eriklerougeuh5772]

occurence of eruption are -8000 -7000 -4500 -1300 +0 +870 +1477 so with statics we cant say eruption chance after only 646 year is low. meaning magma chamber is far from be full..uplift must be survey, but doesnt mean it is ready to burst.

[@johnrottler4000]

I have a suggestion Please talk about the Meers fault in Oklahoma which is a fault capable of producing a large Intraplate earthquake the same size as the New Madrid fault

[@kskssxoxskskss2189]

Good for vacationers in my family, though.

[@peterinburlington]

I understand that Mount Ascutney in southern Vermont is a volcanic remnant. Is this something worth investigating? Also Rock Point in Burlington Vermont has an unusual feature of an older layer of rock on top of a younger layer. I find these pretty fascinating.

[@hahaha9076]

Good to know. Don't travel to Iceland atm. I only recently discovered Iceland tourist information. It looks a wonder on earth.

[@kevysrandomstuff5835]

its like HELLO im not done yet

[@razony]

For millions of years and will continue for millions of years.

[@persophone4554]

Yipee, Maybe another eruption this year?

[@leemccabemccabe5627]

The Sound of SILENCE 🎶 🎵 46, Zion Train Energy 1994

[@TheSpaceEnthusiast-vl6wx]

Hello!

[@williamjones7163]

I had to read this thrice. I read it the first and second times as Ireland rather than Iceland.

[@bigrooster6893]

It would be a low end VEI-5 if it erupts anytime soon.

[@o.aldenproductions.9858]

Say Torfa yokul Next time! Remember j is y ! For you!! .....I feel as you should know this 😆

[@ifeelbetterabouthis.louis3]

This is not surprising it's nature

[@yellowgreen5229]

Pray for air traffic to be grounded. Stop climate armageddon.

[@NeoRipshaft]

Oh cmon you're just showing off now with the names 😆

[@sixthsenseamelia4695]

🌱🌏💚.

[@scottstewart5784]

The term you're looking for is SWAG - sophisticated wild ass guess

[@frosthoe]

Im putting my money on your experience, where are we placing $1 bets! 😋

[@xwiick]

Man i hate waiting

[@michaeldeierhoi4096]

Patience is virtue don't you know?!

[@independentskarab7775]

The Swiss are responsible

[@razony]

Russians.

[@independentskarab7775]

Rah Rah Rasputin

[@kenbrady119]

Ok, let me get these priorities correct. At 0:37: Volcanic island-wide ash-fall is bad, but air-traffic disruption is even worse? As a biologist and conservationist, I would _love_ for all air traffic to cease so as to reduce the tonnage of CO2 released by these human vanities called "tourism" and "business". I am not a geologist, but we do share that "deep time" concept between our scientific specializations.

[@110_Octane]

Two words: Supply Chains

[@achaille9110]

Stop breathing

[@mehtimies]

Climate gas coming soon

[@dagger6467]

Magma. Thank You

[@kennycarter5682]

A large ash eruption could counteract global warming for awhile

[@justayoutuber1906]

I'd rather have magma in the streets than MAGA

[@achaille9110]

Oh, funny..... Not

[@petuniasevan]

@@achaille9110 Don't feed the morons.