Magma Movement Accelerates and a Look at Subsurface Data Beneath Svartsengi Power Plant, Iceland
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- Опубликовано: 8 июл 2024
- Geology professor provides a brief update on the ongoing volcanic saga near Grindavik, Iceland and also breaks down a paper detailing subsurface data beneath the Svartsengi power plant.
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@shawnwillsey You probably meant to pin this comment to keep it at the top.
@@timpointing Yep. Fixed now. Thanks.
Best wishes for a speedy recovery, Amanda Jo!
It is so refreshing to listen/watch a non-dramatic, realistic report. I am learning slowly but surely of the wonders of the rock. Thank you Shawn.
Look up "geology hub" The speaker is so chill, he was accused of using ai voice but he just is very calm. His presentations are short, on point and always very educational.
What a great time to be a geology student... all of this happening live in front of you. Reminds me of 1980 when Mt St Helens blew.
To Amanda Joe......Wish you a good recovery, but give your body time to get better. I had Covid and it lasted 7 weeks. I thought it would never get better, but one day I felt the old one again. I was happy I gave my body all the time it needed to heal. Otherwise It may have lasted a lot longer and without knowing it would become good. So Wish you all the best!
Prayers for a speedy recovery for Amanda Jo. Interesting video, as always!
She'll be fine. Maybe pray to find out why your god is doing this. Tell him/her it's not necessary. He/she controls everything.
Thanks once again. Sending big hugs to Amanda Jo.
Thanks for the update Shawn. Really interesting as always.
If you've noticed less engagement with some of your other videos recently, I wouldn't worry too much. There have been some pretty major political, sporting and weather events occurring in Europe, over the last few weeks, and that has probably sucked up some bandwidth from the European contingent of our team (certainly been the case for me).
Once everything settles back down we'll be back hungry for geology learning.
I appreciate how you call the viewers "Team." With so many chiming in, both on regular videos and the Iceland Eruptions, it does seem we are a team. Thanks for all your insights!
I would also encourage viewers of the Iceland videos to explore the many and varied geology videos that Shawn has on his channel. In the past month I have virtually traveled to Iceland, Idaho, Utah, Hawaii, California, and Europe seeing amazing scenery and learning geology along the way. I’m also taking the professor’s Geology 101 classes which are very accessible to those of us who haven’t studied geology before. Join us!
Very helpful. Thamk you.
Feel better soon, Amanda Jo! I watch all of your vids! In fact, I see another Geology 101 video is up, so I’ll watch that when I get home from work. Thank you!
I appreciate you summarizing the paper! I've spent a while in academia, but not geology, so was interesting to hear an expert talking over the salient points.
Haven't seen any coverage of this in The Journal of Irreproducible Results or my all-time go-to source, J. Du-uh! I expect a paper there soon showing irrefutable evidence that lava flows downhill. ;-)
The electric power station was built in 1976 by HS Orka. It was the world's first combined geothermal power plant for electric power generation and hot water production for district heating. During 1979-80 while stationed at Naval Air Station (NAS) Keflavik, the entire airbase benefited from the district hot water heating and electricity.
PS - at the time, we use to drive over to what is the Blue Lagoon, walk across the lava field and use some rickety wooden stairs to swim in the hot waste water.
Thanks for this! I have family in Keflavik and I remember going to the Blue Lagoon when there was just a small rustic building where we paid our fee at the window, changed in a small dressing/shower/locker room and then bathed in the lagoon. I'm sure that would have been in the 70's.
Thanks, Shawn! The paper was interesting and I appreciated the analysis. Sorry to hear about Amanda Jo, though. I hope she recovers quickly!
Thanks for the update Shawn. Hoping Amanda Jo is feeling better soon.
I always enjoy the Iceland updates. My favorites, however, are the random roadcuts. They take me back to college and the field trips with Dr. Trexler and Dr. Washburn.
Thanks for the awesome update, I loved hearing your take on that detailed report and seeing the cross section. I see your auto shutoff lights are still working as intended 😅
Thank you so much for going through the paper in so much detail. I really enjoyed it. It's so refreshing listening to a specialist explain what all of the diagrams and terminology actually mean. It makes it so much more accessible and understandable.
I am finding that I’m getting more interested in geology. I like the way you present the info that makes me wanting more and listen more intently. Started out just wanting to know about the volcano but now I’m watching more of your videos. Thank you for breaking it down so it is easy for a non geology person to understand.
Awesome! Thank you!
It’s crazy the depths we’ll go to for geothermal power.
Thanks again for relatable, educational information from our favorite geologist!!!
Thanks! I've been stalking and following Icelands volcanic activity (and the chat) since October 2023. Never signed in unless through my phone. I've learned so much and your videos are so informative.
Much appreciated. Thanks for your support and loyalty.
ii enjoy your talks. The Iceland volcanos started me with you, but your knowledge and love of Geology kept me watching.
Great to hear!👂
Thank you for this update, Shawn! Clear and to the point, yes: that's what we like ;) Thanks for taking the time to walk us through the 1983 paper, very interesting! And I see you put the link in the video description so I'll definitely read the whole thing :) Sorry to hear that Amanda Jo is sick with covid... :( Please send her my best wishes for a speedy and full recovery.
Thank you for going over that bore hole paper and for attaching the link!
Hope you're better soon, Amanda Jo!
Amanda Jo, I hope you will feel better quickly! The different layers of rock types revealed by the bore hole samples are interesting. Hard to imagine all of Iceland under a monster glacier, with many eruptions under thick ice. Dramatic. Shawn’s videos on non-Icelandic topics are great, folks! Some mind blowing geology and scenery in them! ❤
Thanks for sharing your update. 😊
I hope you get feeling better Amanda.
I really appreciate your reporting style - your so conversational - and your matter of fact explanations are great - thank you for sharing
Sending warm thoughts yo Amanda for a quick recovery. Good update Shaen thank you, - I like "simple'.❤
Thank you Shawn! I encourage everyone to watch your other videos. I've learned so much and you will definitely learn more about volcanoes. It is all fascinating to me! Thanks again! I hope Amanda Jo feels better soon!
Thanks for the update. Interesting to see the borehole data and to hear your interpretation. Amanda Jo-- may you recover quickly.
Very interesting approach - thank you for the Icelandic volcanic history! I really appreciate this. Also, since you mention it, I love the other themes of videos you have been providing - Hawaii, 101 and roadcuts, and I watch as many as time allows, but in truth I always save some for the 'right' time to watch. Sooner or later I'll get caught up! And again thank you for providing this very valuable and unique learning resource to us all!
Thanks for all the hard work on these videos!
Prayers that you are well very soon, @Amanda Jo 🙏🏻😘
Get better soon, Amanda Jo!! To Shawn: Thank you for the update on the Svartsengi magma movements. Very interesting!!
Get well soon Amanda-Jo. Sending hugs .
Im late to this particular video. A catch up comment - Just to say that the wide variety of topics are an attractive feature of the series. Its summer (of a sort !) 2024 in Ireland and the students are out in force working on their dissertations. What's nice is how freely they will talk about their intentions and its nice to have a handle (however small) on the science they are learning. This series has been a great boon. Looking forward especially to more of the 101 productions but all are engaging thanks to the variety and to the personal touch. Get well soon Amanda Jo !
I'm sorry Mandy Jo! Hope you get well soon.
Thank you, Shawn. I hope you are 💯 soon.
Definitely working my way (albeit slowly) through all the videos.
I appreciate your updates. Will be especially watchful for the next 7 weeks as I prepare to go to Iceland.
And all my best to Amanda Joe.
Shawn, if you have the time, I would love it if you could tell us something about the volcanoes in Italy. Etna recently erupted, Stromboli is erupting. Residents seem quite concerned. Thank you for all you teach us!
Sorry. I’m not familiar with those volcanoes and pretty maxed out in other avenues.
Stromboli has been erupting for pretty much all of recorded human history barring brief several day to several month gaps so the main anomalous threats there have to do with collapse events as the piling up of lava and clastic material becomes too much for the volcano to support leading to pyroclastic flows and tsunami's.
Etna is a very different and much more unpredictable beast as rather than erupting basalt it erupts a somewhat more siliceous and alkaline Basaltic trachyandesite which has a viscocity jist right to give it the capacity for more effusive strombolian lava fountains and even producing a number of fralk eruptions with lava tubes and highly explosive pyroclastic dominated eruptive activity including full blown Plinian eruptions with its last major Plinian caldera forming eruption being in 122 BCE.
Other notable events include a Mt St Helens style major eastern flank collapse into the Mediterranean around 8,000 years ago which triggered a large trans-Mediterranean tsunami and some Pleistocene aged ignimbrite deposits with volcanic ash from Etna being found as far away as Rome. These eruptions produced several large calderas which have been subsequently filled in by the modern edifice of Mt Etna. If Etna were to unleash some of the historical or prehistoric scale eruptions no where on Sicily would be safe from its pyroclastic flows. The only reason the island is as "safe" as it is in recent human history given its high rates of activity is because most of Etna's explosive eruptive activity has been channeled through its horseshoe shaped collapse scar to the East but the volcano has largely filled in this collapse scar and rebuilt most of its pre collapse height.
One day Etna will likely unleash another large VEI 5+ Plinian eruption wiping out Sicily again as it has several times through human history but people's memories are short sighted and the volcano has for modern history been in its edifice rebuilding phase but based on its past history we shouldn't expect it to last forever. It was made one of the decade volcanoes for a reason.
Both have been extremely active for pretty much all of human history Stromboli more than Etna but Etna is a more fickle and dangerous volcano just as capable of causing destruction on the same scale as what Vesuvius did to Herculaneum and Pompeii, with the added complacency from apparently "safe" spectacular strombolian eruptions to make its destruction all the more deadly.
Thanks for the update.
Thanks for this update, Shawn. Sounds like you’re a bit under the weather, too. Get well soon to both you and Amanda Jo.💐💐
Thanks! Appreciate all your videos and reports on what is happening in the geological world! 👍
My pleasure! Thanks for your support.
Having had a long career in petroleum exploration, it is interesting to see the borehole data collected during the development of the geothermal reservoir. I'm quite sure their analysis would have included geophysical surveys as well. It would be interesting to see that data, as well as the actual drill cuttings and or core analysis that would have been done.
Thanks for the video Shawn.
Speedy recovery to Amanda Jo! Hugs
Sending love to Amanda Jo! ❤ Get well soon!
Sending get well soon wishes to Amanda Jo! The analysis and insights about the bore holes data was interesting. Thanks Shawn
Thanks for the update!
Amanda Jo, hope you feel better everyday. Rest and recover
Thank you, Professor.
Thank you, Shawn, for another informative update and making scientific papers more accessible to non-scientists. Hope you feel better soon Amanda Jo, take it easy.
thanks for all the information dr shawn
Good research Amanda. Get well soon.
Yes, Amanda Jo…rest and get better.
Thank you for the update
That was most interesting. Thank you Shawn and get well soon Amanda Jo.
Thank you for your channel. Greatly enjoy it! ❤
Best wishes for Amanda Jo, and Shawn...you didn't wear a mask on your trip did you? I hope it's a cold and not covid. Love your geology videos. I was in Hawaii last two weeks of Feb of this year and had a room at Volcano House overlooking the crater, so those videos of your trips to Kilauea were especially interesting. The last time I was there was in 1995 and I got to watch lava pouring into the ocean from Pu'u'o'o. But this last trip I spent a lot more time on the lava of Mauna Ulu which you covered so well. Loved every minute of it!
Amanda Jo: I had COVID about 5 weeks ago and Paxlovid did a good job at lessening the symptoms but at the price of a horrible metallic taste in my mouth (I found that foods with a bit of spice would overcome that for about an hour). Hope you recover soon.
I've heard about the horrible taste from Paxlovid! Hopefully I won't ever have to experience that!
So sorry to head about Amanda Jo. 🤗🙏. Covid is no fun.
Thanks for explaining the update, I was wondering about their earthquake data, didn't really seem relevant to me either. Interesting info on the bore holes
Superb, in every respect, thanks.
Thanks for the videos
Thanks Shawn, enjoying all the vids, get well soon Mandy Jo
Thank you Shawn.
Thanks so much, catching up 😊
Please send my best wishes to Amanda Jo, that she recovers quickly and has no long-covid-ish stuff afterwards.
Hi, is this constant flexing of the ground generating more fracture zones for the future?
Hope you feel better as well
Aloha, from Makaha Hawaii.....thanks for the update...
Get well soon, Amanda Jo. Thank you, Professor.
Feel better soon, Amanda Jo!
I wonder how many drill holes there are in the Svartsengi area now, after 40 years of operations.
Just an FYI that the mbl grindavik south-facing cam on Hagafell was showing a lot of steam/gases coming out of the big crack on the side of Hagafell late 7/12 PST. Hadn't seen that for awhile.
Feel better Amanda Jo!
Get well soon Amanda joe.thanks for the update shawn wendy albany western Australia
In papers where the science is beyond me as a civilian, I tend to read the abstract, the discussion section, and the conclusions. The deeply scientific parts between them might be too detailed but you can learn a lot with just those three sections.
Perhaps you explained this previously and I missed it …
Question: when you refer to ‘negative’ magnitude earthquakes, what exactly does that mean? As a non-geologist, it seems counter-intuitive. That is to say, if an earthquake is of ‘negative’ magnitude, why is it considered an earthquake? To me, magnitude implies powerful, positive’ tectonic or magmatic phenomena (similar to integers).
@Shawn Willsey - Looking at the land level measurements in the new GPS data early in this video, it’s very interesting that, unlike after earlier eruptions, it dropped a bit and delayed a bit before the rise began. I want to know if the angle of the rise graph is the same or less than for the other post-eruption phases. By eye, it looks like a slightly slower rise rate to me, but I want to know what the actual rate is compared to earlier ones. This of course is a way to assess whether the refilling of the magma chamber (the one that feeds the eruptions) might be slowing down, a vitally important question. Any comments?
As all of your viewers do, I wish Amanda Jo a speedy and complete recovery from COVID-19.
Thank you, Shawn, for your quick summary of events in Iceland and for your insightful summary/overview of this 1983 paper. I had a question for you on the inferred cross-section that you showed and discussed. At about 1000m, there is a layer of "Basalt Lava". As you go from bore hole #8 to #4, the authors have the layer tapering off at one level and then beginning at a slightly lower level. Is there a particular reason, do you think, why they didn't basically draw a line connecting the tops and connecting the bottoms of this layer? I don't see anything to suggest that the layer at #8 vanishes as you head toward #4 while another layer starts up at the same position! It's not like there aren't other places on the cross-section where basalt lava layers change depths across the plot. I'm sure that I'm missing something ... but what? 🙂
Thank you.
Thanks!
Gwt well soon, Amanda Jo!
I guess geology is one field where old papers are still generally up to date. Rocks don't move around all that much. If there are faults in that area, why does the magma intrusion not find one of those more vertically-oriented faults and rise, rather than squeezing off to the east and then coming up? Do those faults not reach down close enough to the magma?
If there was access to the raw data, would an updated 3D plot would be a touch more accurate than flattening the plot as shown in the paper?
Amanda Jo, hope you feel better soon. Covid is no joke. Give your body a lot of rest, even when you think you feel better, and soak up plenty of cat purrs to help you heal.
Prayers for Amanda Jo.🙏🏼
Thanks Shawn. Learning slowly! Speedy recovery to AmandaJo
With multiple drill holes we would first create a "fence" diagram, basically a cross section between two bore holes, and assemble all of those cross sections and project them to a single plane. In the old days, this took a lot of ink. Now, with computers and 3d modelling, we can visualize so much better!
If they had enough surface seismometers, they could use earthquakes to develop an accurate 3d model of the whole subsurface area, including the magma dykes and chambers. It just needs sensors and a decent pc. The technology to do it already exists, and it could show the accurate composition of magma and its location and movement almost in real time..
I have a question. Just read yesterday that earth core slowed down and seems to reverse going the other way. Will/can that give more volcanic activity ????
love the videos. may i ask how do you get negative magnitudes earthquakes? thanks
I do definitely watch other videos of you too:) Especially when it's field trip stuff
And speedy recovery to Amanda Jo
Thank you for this VERY academic update and work. A LOT of the others are COMMENTARY not legit academically founded REPORTING
Most graphics show a simple pipe feeding freshly baked magma into a reservoir below Svartsengi. Is this pipe a permanent connection measured in decades or longer? Does flow stop when the reservoir achieves a certain pressure, but pipe remains functional for very long time and will push new magma up if pressure in the reservoir drops? Or does the pipe eventually get ruptured by earthquake or even movement of plates and that reservoir is deprived of a feed? (and over time magma in reservoir solidifies). Would new pipes from deed down below open to random location where a new reservoir might form? or possibly connect to existing reservoir that hasn't cooled yet?
Sending Posiitnve Vibes to Amanda Jo. Hope you feel better quickly
2:30 This is probably a translation thing. The Icelandic text sounds more neutral than the English version. It would be more accurate to say "just under 20 earthquakes" and "just over 260 earthquakes", which is common to say when rounding numbers. They're just stating and summarizing numbers without interpreting them :)
Amanda Joe, hope you recover quickly🙏
Good stuff👍👍👍Di…Cumbria