Iceland Volcano ended? Geologist explains, August 2022 update
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- Опубликовано: 15 окт 2024
- The Merardalir Eruption in Iceland is a continuation of the 2021 Fagradals Eruption. In this video Professor Ólafur Ingólfsson explains
Watch Professor Ólafur explain the 2021 eruption here • Lava 1000 feet in the ...
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Nice to have Professor Dad back on line again. thx Jon
Great, well-informed commentary by your dad, who I think it’s important everyone here know is a pretty much legendary sedimentologist/glaciologist, who seems to have been hanging around a lot of late with his volcanologist colleagues, because all his explanations here are authoritative!
Was hoping this would happen again!
Thanks for your comment. My colleagues at the University of Iceland keep the team of Earth Scientists well informed - and you are of course correct in assuming I've been hanging around a lot with my colleagues, accompanying them to the eruption site and helping out with sampling and observations. We have probably not seen the end of volcanic activity on Reykjanes, more likely we are in the initial stages of a long-lasting episode of volcanic activity and can expect more eruptions in the near future...
2023 - a new year in our volcano journey and being your true follower , just waiting for your informative updates.
Thank you!🌋
Good to hear from the professor again!
thank you for watching! Glad we were able to collaborate again
So cool that your dad could use your channel to inform people. I wonder if someone would be interested in buying this from you for their channel, something like the Discovery Channel.
That's high praise! Would be amazing if a distinguished network wanted to broadcast this
@@JonBear HI. How are you?
I've got a question, possibly more. A few days ago on the tremor chart at Grindavik, one of the lines nearly tripled in thickness. Is there any information on that? Is it possible that it's an indication that magma might be moving in that area?
@@sigisoltau6073 Hi Sigi. Nothing certain. But it is speculated that the lava will resume. But there is no telling when at this point. Could be months or even years from now
@@JonBear I know. I was wondering why that one line on the Grindavik tremor chart thickened like that. Doesn't one of those three lines on the chart indicate magma movement?
This is by far the best video on the new eruption . Very well explained and easy to understand. Thanks Jon for posting Cheers my friend!
Thank you Bill! My dad did a great job going there and filming. The drone shots from the new eruption were paid footage. Then I used mostly shots from my previous visits. Hopefully next time I'll be there in person to film high quality footage
@@JonBearHi. Me again. I've noticed possibly something weird on the Grindavik seismic graph. For a while now there have been these weird bumps on the lowest line. They look like a sideways view of a mesa. Steep at the sides with a flat top. And they're only on the Grindavik graph.
Hurrah! The Geologist is back.
Thank you Ken for watching! He did a fantastic job filming. I really enjoyed putting this video together
We were there on 13th August. It was unbelievable and unforgettable. I love your country. Iceland is definitely the most beautiful country in the world.
Very interesting explanations from your dad. Thank you !
Thank you for your positive feedback!
Thanks for the great update. I wish I could see a video of the exact time when it is slowing down and then when the eruption actually stops. That would be fascinating to watch.
Loved this commentary by your dad. Hope to visit Iceland one day soon and check this volcano out. Thanks for sharing.
Thank you Jon and Prof Ingólfsson. Informative and enjoyable, again.
Thank you so much for tuning in!
I love the video. Scientific explanation, personal clips, mystery future of volcano... Ongoing geological show!
Thank you Matt! Huge thanks to my dad for making the trip and filming
@@JonBear I see there's a massive spike on the seismograph. It's just the 5,000 threshold for an eruption. Is it weather related? Currently I can't get any information on the weather in the Grindavik, Geldingaladur and Krishuvik areas.
Thx for the informative video. Your father is a great presenter of his scientific knowledge.
I am heading to Iceland September 30 for a week. Can you update me as to if the Volcano is active. This was one of my things I was planning on seeing. Thank you, Sue
Jon - please thank your father, he is a fantastic communicator (clearly it runs in the family).
One day I will be in Iceland when a volcano erupts - but I guess not this year!
Thanks! Hope you'll come visiting Iceland and have chance to experience an eruption!
Thank you Mike! Hopefully you go and when you do we'll be there filming the future eruptions 🙌
@@JonBear I've got questions. I hope you can answer them.
1: has the uplift seen before the eruption gone down, or has it stayed the same?
2: what's the size of the intrusion for this eruption?
3: if the uplift stayed the same, is there a chance a new vent could open in the next few days or weeks?
@@JonBear That'd be great! Although I should warn you, I appear to be able to stop volcanic eruptions - last year's ended pretty much the moment I arrived in Iceland, and this year's died when I opened the Icelandair booking page. So just in case - get all your important filming done BEFORE I arrive! Thanks for all the great content.
@@sigisoltau6073 1) There is uplift/inflation still going on at Reykjanes, and 4-5 volcanic systems on Reykjanes are inflating. 2) The Fagradalsfjall dyke that fed both the Geldingadalir (2021) and the Merardalir (2022) eruptions had a depth of 10+km, was 8 km long and 1-3 m wide. 3) We will probably have a new eruption on Reykjanes in the near future, but it might start at a different location from Fagradalsfjall, as other systems are inflating. The Merardalir eruption can probably be regarded as the last (?) phase of the Geldingadalir eruption in 2021 as the magma was siphoned from the same source already in the feeding system. There is always a chance that a new vent might open up in Geldingadalir in the next few weeks, but I would not bet on it. Renewed seismic activity in the area will be one of the tell-tale signatures of a possible new eruption there. We are not there now. I hope this answers your questions.
The drone livestream from lsak a few days before cessation showed a sudden drop in lava in the spattercrater....it was like a toilet flushing (slowly) and l was amazed no one commented on it in the livestream (l couldnt...old phone only) the viscosity of the lava changed the day before too...
Thanks for your comment. The activity in the crater was a function of magma discharge through the the piping system, the geometry of the feeder channel and gas/degassing as the magma came close to the surface. These variables change in the course of the eruption, leading to more or less outpouring of lava, and more or less lava fountains. The viscosity of the magma/lava, which is dependent on its chemical composition and temperature, did not change much during the course of the eruption. What you observed was probably oscillations in the discharge/lava output.
nice vid , the eq's in the area are puttering along atm maybe one an hour at most and they are not of a size that would be a cause of concern as they maybe caused by the land settling and sorting out all the stress from hundreds of tons of lava now plonked on top of it.
will the latest fissure erupt again ? , imho id say no though i wouldnt rule it out 100% as everything there is now cooling and turning solid albeit slowly which may force the magma to travel elsewhere which may lead to a failed intrusion as we saw after the 2021 eruption where there were several cases of magma rising and travelling along natural faults and making its own paths through weakened rock layers but they didnt have the pressure behind them to break through to the surface.
while the faf chart is atm showing signs of increase i am thinking that this is nothing to get excited about (watch it go boom in the next week !) but i think there maybe another eruption along the same line , is there another valley ? , i found it interesting that the fissure seemed to break out at the bottom of what looks like an older cone and seemed (from what i can gather) to be heading towards krysuvik , but that is joining some dots and making a leap of faith with added guesswork , but i did say that days before the last eruption ended it wont last months a few weeks maybe less and 4 days or so later it had stopped , atm im keeping a weather eye on krysuvik.
Nice. The most of the views here are from last year's eruption lava (because this year lasted just a few days), but they are nice and wonderful. Hope to have a new harmless eruption very soon.
My postulation on this points to a key clue that the initial magma was from the last eruption. I think what we are seeing here is the early stages of a crustal magma chamber formation.
Good points! I think you are right that the Merardalir magma/lava is a residual from the last eruption in Geldingadalir, and the eruption can be regarded as a continuation of the 2021 eruption. The magma composition is very primitive, pointing to a deep-source (close to the mantle-crust boundary), no signs of differentiation or partial melting of surrounding crust. Anyhow, large dikes and sills can be regarded as "baby" magma chambers, where the magma undergoes changes in composition as crystals grow and the magma interacts with its surroundings. I guess the next eruption will tell us if lava is from a magma accumulation within the crust or directly from the mantle-crust boundary.
@@olafuringolfsson9151 The future holds the key to the story that is for sure :)
I've been there😅! And I saw the eruption. It was amazing. But please my dear Icelanders: take care of the nature. If a new volcano erupts, start only guided tours to the volcano. Close the hiking track for people hiking alone. I was ashamed as I saw many people walking on the moss, beside the hiking track, on the 1 year old lava, ( its still very hot under the surface), they even left waste there 😤. And many people are not well prepared for the hike!
With love from Germany
Thanks for your comment. I entirely share your concerns.
Is it still worth to watch? I will come to Iceland by end of this week
The eruption has stopped, but the craters and the steaming lava is definitely worth checking out!
i will be there in mid-Sep, is it too late to go?
@@tidtychan same answer, it is definitely worth visiting the new lava and see the craters, but volcanic activity has stopped
I will be there end of October. I know the eruption is over but it's been my biggest wish to see lava. Is it still visible? Like are we able to see any glow in the cracks or is it all cooling and hardening?
Excellent. Thank you.
Thank you for watching Barbara!
2:21 "and also fluorine" Now that's a dangerous gas! Start with chlorine and magnify all its properties.
It's no joke! Fortunately no one has been injured yet but the safety guard needs to be present at all times
Thanks for the informative video.
In the time scale of a human being, this had been two eruptions in 2 different years. But in the geological time scale, the eruption of this August had been just the second breathe of the new Reykjanes activity, that started with the first quakes in 2020 and the first breathe in 2021. Before that it was sleeping for hundreds of years.
No one knows if there will be more breathes of that volcanic system, but is seems to be very likely. I hope the coming eruptions of the system will be as peaceful as these two had been.
Have a nice day and best regards
🖐👴
Thanks for this positive feedback!
Just excellent 😎👍
The tip of Reykjanes Ridge had a 5.7 followed by several Earthquakes 4.5+
I know it is on a faultlines.....but it has lasted two days now.....close to 40 ....4.5+
Excellent
I'm researching Iceland's volcano names. Help!
let's all play a guessing game in the comments.
when do you think this volcano will erupt again?
um, I will predict it will happen in early 2023.
Your guess is as good as any, it might erupt again next year. There is lot of magma at depth below Fagradalsfjall...
I'm hoping it does! At least in safe capacity. I will hopefully be in Iceland by then 🙌😁
Currently in a plane to Saigon in Vietnam
So has it def stopped?
Yes, no activity observed since 21st of August
That whole area ,is probably one volcano. with many different crater lava exit points.
These are fissure eruptions, and new fissures could open up when the volcano starts again!
Magma-nificent 😳
…and with that, I am sending you best regards, from the vulcano island, Aiiiistlaaand….😂
"500 soccel fields"
LOL! Frankly, 6 km2 ie 2x3 km is an area that I can visualize more easily.
He's a university professor with decades of teaching experience. I'm sure it's useful to add visualizations for students ✌️
@@JonBear Sure, visualizations are helpful. However, knowing how large a soccer field is does not necessarily allow you to understand how large 500 of them put next to each other are. The relation is lost at this scale. Anybody who has ever walked short distances on foot has a relation to a km or a mile.
(I also balk at the American dumbing down of relating everything to a football field. But that's a different story.)
Also, that was just me. Anybody go with their favourite unit of reference (I like to poke fun at "imperialists" by quoting furlongs per fortnight as a unit of speed.) ;-)
maybe not there is new eruption as of september 10th
Is this true??
It's broke. Someone fix it.
😃🥰🤩👍🌋🌋
its not going to end, its going to keep getting worse. idc how smart you are, God is all knowing, and he said hes coming back soon in these last days, So Repent and Prepare for the Rapture.