Magma Movement Accelerates and a Look at Subsurface Data Beneath Svartsengi Power Plant, Iceland
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- Опубліковано 8 лип 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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@@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!
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. ;-)
Thanks, Shawn! The paper was interesting and I appreciated the analysis. Sorry to hear about Amanda Jo, though. I hope she recovers quickly!
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.
Thanks for the update Shawn. Hoping Amanda Jo is feeling better soon.
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 😅
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 again for relatable, educational information from our favorite geologist!!!
Hope you're better soon, Amanda Jo!
Sending warm thoughts yo Amanda for a quick recovery. Good update Shaen thank you, - I like "simple'.❤
Thanks for sharing your update. 😊
I hope you get feeling better Amanda.
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!
ii enjoy your talks. The Iceland volcanos started me with you, but your knowledge and love of Geology kept me watching.
Great to hear!👂
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.
It’s crazy the depths we’ll go to for geothermal power.
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! ❤
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.
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 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.
Prayers that you are well very soon, @Amanda Jo 🙏🏻😘
Good research Amanda. Get well soon.
Thank you for going over that bore hole paper and for attaching the link!
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 !
Thank you, Professor.
Thanks for all the hard work on these videos!
I'm sorry Mandy Jo! Hope you get well soon.
Thank you, Shawn. I hope you are 💯 soon.
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!
Get well soon Amanda-Jo. Sending hugs .
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.
Sending love to Amanda Jo! ❤ Get well soon!
Amanda Jo, hope you feel better everyday. Rest and recover
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.
I really appreciate your reporting style - your so conversational - and your matter of fact explanations are great - thank you for sharing
Thanks for the update. Interesting to see the borehole data and to hear your interpretation. Amanda Jo-- may you recover quickly.
Thanks for the video Shawn.
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!
Definitely working my way (albeit slowly) through all the videos.
Speedy recovery to Amanda Jo! Hugs
Thanks for the update!
thanks for all the information dr shawn
Yes, Amanda Jo…rest and get better.
Thanks for the update.
Get better soon, Amanda Jo!! To Shawn: Thank you for the update on the Svartsengi magma movements. Very interesting!!
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.
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!
Please send my best wishes to Amanda Jo, that she recovers quickly and has no long-covid-ish stuff afterwards.
Thank you for the update
Thanks! Appreciate all your videos and reports on what is happening in the geological world! 👍
My pleasure! Thanks for your support.
Thanks for this update, Shawn. Sounds like you’re a bit under the weather, too. Get well soon to both you and Amanda Jo.💐💐
Thank you for your channel. Greatly enjoy 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!
Sending get well soon wishes to Amanda Jo! The analysis and insights about the bore holes data was interesting. Thanks Shawn
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.
Superb, in every respect, thanks.
That was most interesting. Thank you Shawn and get well soon Amanda Jo.
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? 🙂
Thanks for the videos
Thanks Shawn, enjoying all the vids, get well soon Mandy Jo
Thank you Shawn.
Feel better Amanda Jo!
Aloha, from Makaha Hawaii.....thanks for the update...
Thanks so much, catching up 😊
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.
Get well soon Amanda joe.thanks for the update shawn wendy albany western Australia
Hi, is this constant flexing of the ground generating more fracture zones for the future?
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).
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
Hope you feel better as well
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.
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.
I wonder how many drill holes there are in the Svartsengi area now, after 40 years of operations.
Feel better soon, Amanda Jo!
Thank you.
Amanda Joe, hope you recover quickly🙏
Get well soon, Amanda Jo. Thank you, Professor.
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?
Sending Posiitnve Vibes to Amanda Jo. Hope you feel better quickly
Gwt well soon, Amanda Jo!
Thanks!
Prayers for Amanda Jo.🙏🏼
Sending healing vibes to Amanda Jo, for a speedy recovery.
I do definitely watch other videos of you too:) Especially when it's field trip stuff
And speedy recovery to Amanda Jo
Thanks Shawn. Learning slowly! Speedy recovery to AmandaJo
Thank you for this VERY academic update and work. A LOT of the others are COMMENTARY not legit academically founded REPORTING
Love to A J. Myself had it last week (during my week off work 😮). We are surrounded by Covid in the hospital I work in. Guess it was inevitable that I got it on my time “off” or typical 🧐
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 :)
Good stuff👍👍👍Di…Cumbria
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..
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?
Hello from central New York State.
Easy to see why new magma can intrude horizontally (forming sills) in this geological layer cake with alternating interglacial lavaflows and glacial-age volcanic breccias.