One of the best intros on this channel! You get a raised alert level, you get a raised alert level, you get a raised alert level! Everyone gets a raised alert level! -that last part was not included* thankfully😂
This is why communities at the base of Mt Rainier are always on the alert! The mountain heats up its glaciers and such from below, so a lahar can occur at any time. For those who don't know, the funky looking "d" in the other volcano's name is pronounced like "th" in "the". It's from a rune from old times, that Iceland still maintains. It's not actually a "d".
The word “jökulhlaup” = “glacier run” is when the glacier melts from below until the glacier floats up and the water gushes out with volume of water that rivals the Amazon river. That is the glacier gets the runs.
Is Oprah giving out "increased alert levels?" Like she did with cars a few year back. Sorry...only funning you...seriously, your videos are consistently top tier in the science category.
Floods from Grímsvötn are usually caused by constant geothermal activity, not sudden increase in it or an eruption. The geothermal activity constantly melts the ice and creates a hole in the glacier, the hole slowly fills with water as more ice streams into it and melts, causing the water level to rise slowly until the ice floats up (and breaks up) allowing the water to stream down underneath the ice. The channels are so small and widen so slowly that it usually takes several days to reach it's maximum. Eruptions under glaciers create much more sudden outburst with much higher maximum since the water is "hot" and widens the channels much quicker like we saw in 1996 with a flood of ca. 50.000 m3/sec. Grímsvötn eruptions generally don't create sudden floods as they often take place inside the lake or in the mountain above the ice.
Another factor which may be at play with Grimsvotn's alert level being raised is that in the past intrusions from Bardarbunga have interacted with Grimsvotn's own magmatic systems which like many of the volcanoes clustered near the hotspot not entirely independent. Basically it is possible for Bardarbunga to cause Grimsvotn to erupt albeit probably not the most likely outcome but certainly one which could have significant impacts. Bardarbunga is Iceland's largest volcano by volume if I remember correctly and has a history of sending intrusions into other nearby volcanoes domains in addition to being the source of many of Iceland's most voluminous eruptions since the end of the last Glacial maximum.
I knew the raised level on Bardarbunga was notable; it has a 400-600 year eruption cycle and we are now at around the 600 yr mark since the last eruption. But now Grimsvotn?! Yikes! Luckily both are a distance from significant settlements (to my knowledge) but still big events have big consequences. Wowza
I must stand to correct you: 3 magmatic and 18 subglacial Eruptions have been recorded at Bardharbunga since 1700, including Gjalp in 1996 and Holuhraun in 2014/15. The 400-600 Years Number refers to the whole Holocene, but, looking at the Numbers that just doesn't add up in recent Times.
@ nick3805 my mistake- you are correct; there were many other eruptions. I was referencing UA-camr Stefan Burns channel and he was speculating if a VEI6 eruption was in the making and the last time that happened with this volcano was 1477… I didn’t transfer the right info. Sorry
@christinevr7698 No Problem at all, this can happen easily, especially with Bardharbunga about whom we know surprisingly little. Even it's Extent is unclear. The Holuhraun Area was thought to be Part of the Askja System until recently. I actually also made a Mistake: Gjalp belongs to Grimsvötn, Bardharbunga's Eruption was a seperate one shortly after. I just wanted to correct that Informationnfor the Sake of not overestimating the Importance of the Event. However, given that these two Volcanoes are showing Signs of Unrest at the same Time once again is noteworthy. It would be interesting to figure out more about the Interaction of these two Systems. There is a Precedent of Activity in Bardharbunga triggering Eruptions of Grimsvötn with the 1996 Gjaulp Eruption.
Could it be that todays jökulhlaup has a much lower flowrate than previous eruptions because there was less ice/snow on the volcano to begin with? I can imagine the glaciers have retreated quite a bit since 2004
Could there be any deep or shallow connection between the magma movement at Bárðarbunga and the glacial outburst floods at Grimsvötn? (Via ground deformations, seismic events, or even a pulse of hotter magma from the depths making its presence known?)
QUESTION: “jökulhlaup” is the known name for these melt water events … I’ve also heard them referred to as “The Races” Is this a term connected to these events or something else associated to the larger event. Maybe the region where jökulhlaups happen is called The Races?… I called these events The Races long before this and its not a term I could even make up. Anyone know? Thanks!
is it possible that the jökulhlaup from Grímsvötn traveled up to Bardabunga so not only south but north and managed to find a path to the magma at Bardabunga like the melt water does sometime in August/September causing steam earthquake blasts?
Statistically speaking, Grimsvötn (which is still pronounced Grimsvoech-ten and not Grimsfohn) is about 5 Years overdue for it's Eruption, so whenever it decides to have a go, I wouldn't be surprised. I'd be if it didn't by 2030 (even if that isn't entirely unheard of for this Volcano either).
You get a raised alert level and you get a raised alert level and you get a raised alert level had me dying
Yeh, that intro was Sweet.
LIE
Same! 😂
Same!!! 😂😂😂
Same
I really enjoy your content... Short and sweet, right to the point, no fluff...keep up the great work.
One of the best intros on this channel! You get a raised alert level, you get a raised alert level, you get a raised alert level! Everyone gets a raised alert level! -that last part was not included* thankfully😂
Your dry humor never fails to make me smile. Keep doing what you're doing. Thank you for the amazing, thorough, and succinct updates
Thanks for all the hard work on these videos!
Come on. Volcanic ash is Iceland’s greatest non-official export, periodically vastly exceeding fish and Björk albums.
Thanks as always, Geology Hub!
GeologyHub goes full Oprah. Solid.
OprahlogyHub
This information/update is much appreciated, Timothy
This is why communities at the base of Mt Rainier are always on the alert! The mountain heats up its glaciers and such from below, so a lahar can occur at any time.
For those who don't know, the funky looking "d" in the other volcano's name is pronounced like "th" in "the". It's from a rune from old times, that Iceland still maintains. It's not actually a "d".
Intro to the vid? Epic 😂
Best. Science. Opening. Ever. Congrats, you just won the internet!
Best into on UA-cam.
Shared on BS and FB. Thank you.
The intro actually killed me! Your sense of humour is great 😂😂
I was at KaluaPele last night fountains were like 400 feet and the gas was really bad. Definitely worth the sore throat today.
That's a great word - jokulhlaup! Sounds like a digestive upset or something...... :)
Bardarbunga is a great volcano name too!
The word “jökulhlaup” = “glacier run” is when the glacier melts from below until the glacier floats up and the water gushes out with volume of water that rivals the Amazon river. That is the glacier gets the runs.
Jökull: Glacier + Hlaup: Run (but the word "hlaup" is a cognate of english "leap" though)
Day 4: *Laki Volcano Alert*
Is Oprah giving out "increased alert levels?" Like she did with cars a few year back. Sorry...only funning you...seriously, your videos are consistently top tier in the science category.
Loved the start to this one!
Every volcano gets a raised alert level!
I loved that first few seconds!
thanks for the information
Floods from Grímsvötn are usually caused by constant geothermal activity, not sudden increase in it or an eruption. The geothermal activity constantly melts the ice and creates a hole in the glacier, the hole slowly fills with water as more ice streams into it and melts, causing the water level to rise slowly until the ice floats up (and breaks up) allowing the water to stream down underneath the ice. The channels are so small and widen so slowly that it usually takes several days to reach it's maximum.
Eruptions under glaciers create much more sudden outburst with much higher maximum since the water is "hot" and widens the channels much quicker like we saw in 1996 with a flood of ca. 50.000 m3/sec. Grímsvötn eruptions generally don't create sudden floods as they often take place inside the lake or in the mountain above the ice.
1:57 I found the secret Mickey.
And you and you AAAAAND you😂😂😂 WHAT??? I don’t get one??? GEEEEZ GEOLOGYHUB🤣🤣
So rude, isn't he?
@ 🤣🤣🤣🤣🤣
@ Geologyhub? NEVER🤣❤️❤️
Another factor which may be at play with Grimsvotn's alert level being raised is that in the past intrusions from Bardarbunga have interacted with Grimsvotn's own magmatic systems which like many of the volcanoes clustered near the hotspot not entirely independent. Basically it is possible for Bardarbunga to cause Grimsvotn to erupt albeit probably not the most likely outcome but certainly one which could have significant impacts.
Bardarbunga is Iceland's largest volcano by volume if I remember correctly and has a history of sending intrusions into other nearby volcanoes domains in addition to being the source of many of Iceland's most voluminous eruptions since the end of the last Glacial maximum.
Gylfi over at Just Icelandic could be running in circles pretty soon.
Those two volcanoes seem to play table tennis together! That's what I thought when you reported Bárðarbunga earlier on.
I knew the raised level on Bardarbunga was notable; it has a 400-600 year eruption cycle and we are now at around the 600 yr mark since the last eruption. But now Grimsvotn?! Yikes! Luckily both are a distance from significant settlements (to my knowledge) but still big events have big consequences. Wowza
I must stand to correct you: 3 magmatic and 18 subglacial Eruptions have been recorded at Bardharbunga since 1700, including Gjalp in 1996 and Holuhraun in 2014/15. The 400-600 Years Number refers to the whole Holocene, but, looking at the Numbers that just doesn't add up in recent Times.
@ nick3805 my mistake- you are correct; there were many other eruptions. I was referencing UA-camr Stefan Burns channel and he was speculating if a VEI6 eruption was in the making and the last time that happened with this volcano was 1477… I didn’t transfer the right info. Sorry
@christinevr7698 No Problem at all, this can happen easily, especially with Bardharbunga about whom we know surprisingly little. Even it's Extent is unclear. The Holuhraun Area was thought to be Part of the Askja System until recently. I actually also made a Mistake: Gjalp belongs to Grimsvötn, Bardharbunga's Eruption was a seperate one shortly after.
I just wanted to correct that Informationnfor the Sake of not overestimating the Importance of the Event.
However, given that these two Volcanoes are showing Signs of Unrest at the same Time once again is noteworthy. It would be interesting to figure out more about the Interaction of these two Systems. There is a Precedent of Activity in Bardharbunga triggering Eruptions of Grimsvötn with the 1996 Gjaulp Eruption.
Could it be that todays jökulhlaup has a much lower flowrate than previous eruptions because there was less ice/snow on the volcano to begin with? I can imagine the glaciers have retreated quite a bit since 2004
I am NOT looking under my seat. NOPE.
Magma is moving 🤣🤣🤣🤣🤣
Wow, I wanna be an Icelandic volcano. Their geologists are so generous.
Could there be any deep or shallow connection between the magma movement at Bárðarbunga and the glacial outburst floods at Grimsvötn? (Via ground deformations, seismic events, or even a pulse of hotter magma from the depths making its presence known?)
Completely random guess, but gut feeling tells me Grimsvotn is just teasing us, Askja is next up of the eastern volcanoes
"Look under your chair! EVERYONE gets a raised alert level!" Geologist Oprah.
the oprah meme is worth the like alone to be honest
I am glad that you liked that bit :)
Volcanoes are so interesting
Grimsvotn is back to green level
WOW!
Iceland getting lit
Doesn't this volcano and the one to the North share a reservoir? They are too close to each other not to.
QUESTION: “jökulhlaup” is the known name for these melt water events … I’ve also heard them referred to as “The Races” Is this a term connected to these events or something else associated to the larger event. Maybe the region where jökulhlaups happen is called The Races?… I called these events The Races long before this and its not a term I could even make up. Anyone know? Thanks!
Thanks Oprah!
Well that was more fun, as opossed to:
alert alert alert!
Right 😊
Joke aside be safe and heed.
If you look under your seat, you will get a lahar in a jar. *Round of applause*
is it possible that the jökulhlaup from Grímsvötn traveled up to Bardabunga so not only south but north and managed to find a path to the magma at Bardabunga like the melt water does sometime in August/September causing steam earthquake blasts?
Do i get a raised volcano alert level?
Statistically speaking, Grimsvötn (which is still pronounced Grimsvoech-ten and not Grimsfohn) is about 5 Years overdue for it's Eruption, so whenever it decides to have a go, I wouldn't be surprised. I'd be if it didn't by 2030 (even if that isn't entirely unheard of for this Volcano either).
Will this melt this huge glacier... I watch the calving on this glacier to Iceland s . largest lake,???
Just Shows to Go you: It ain't over until it's over.
This is “crack” for the volcano freaks out there. 😂 Iceland is just doing what Iceland does best … and has been doing it for millions of years. Next!
😎👍
♥️🙂🌞👍
One day in the future, Iceland just simply erupted.
heres your Sign! :]
Isn’t grimsvotn part of laki volcano
No, it's the other way around. Laki was a flank (rift zone?) eruption of Grimsvotn.
The Oprah of Reykjavík. 😀
More chance of mount chocolate in arizona blowing its top.
0:54 Mickey Mouse!
And is🎉🎉🎉