Kristian Svennevig
@ksvenenvig.bsky.social
Geologist. Landslides in Greenland and Denmark. And landslide tsunamis!
Just add water: 3D printed rotational landslide.
Working on improving these models so the print files can be shared for outreach and teaching.
Working on improving these models so the print files can be shared for outreach and teaching.
September 18, 2025 at 1:00 PM
Just add water: 3D printed rotational landslide.
Working on improving these models so the print files can be shared for outreach and teaching.
Working on improving these models so the print files can be shared for outreach and teaching.
3D-print demonstrating a rotational landslide at it simplest. Amazing how much you can actually communicate with such a simple model: Rotation, self-stabilization etc.
Working towards making more complex models and share the blueprints so they can be used in outreach.
Working towards making more complex models and share the blueprints so they can be used in outreach.
August 29, 2025 at 10:14 AM
3D-print demonstrating a rotational landslide at it simplest. Amazing how much you can actually communicate with such a simple model: Rotation, self-stabilization etc.
Working towards making more complex models and share the blueprints so they can be used in outreach.
Working towards making more complex models and share the blueprints so they can be used in outreach.
Looking at the runup on the opposite shore to the s of the scar and reading an approximate elevation from ArcticDEM it looks like we are close to the world record for highest tsunami runup (524 m Lituya Bay).
August 14, 2025 at 9:01 AM
Looking at the runup on the opposite shore to the s of the scar and reading an approximate elevation from ArcticDEM it looks like we are close to the world record for highest tsunami runup (524 m Lituya Bay).
Crazy (horizontal) runup from the large landslide into Tracy Arm fjord, SE Alaska. This is 20 km out the fjord and the wave reached up to 400 m into this side valley. notice how the vegetation was only wetted for the most part (pixels still red) and only the mouth of the river is destroyed.
August 14, 2025 at 7:29 AM
Crazy (horizontal) runup from the large landslide into Tracy Arm fjord, SE Alaska. This is 20 km out the fjord and the wave reached up to 400 m into this side valley. notice how the vegetation was only wetted for the most part (pixels still red) and only the mouth of the river is destroyed.
Reposted by Kristian Svennevig
It has been a busy couple of days! There was a large landslide and tsunami in SE Alaska, in Tracy Arm, Sunday morning. Luckily, no injuries or casualties were reported. This region is outside of our current landslide coverage, but we were able to get a quick location after hearing about the event. 🧵
August 13, 2025 at 2:29 AM
It has been a busy couple of days! There was a large landslide and tsunami in SE Alaska, in Tracy Arm, Sunday morning. Luckily, no injuries or casualties were reported. This region is outside of our current landslide coverage, but we were able to get a quick location after hearing about the event. 🧵
Reposted by Kristian Svennevig
I denne #GEUS rapport kan du få indblik i den geologiske faglighed, som kvalificerer spørgsmål fra #kystdirektoratet vedr. skredaktivitetssagen ført an af @ksvenenvig.bsky.social og @mariekeiding.bsky.social
www.geus.dk/om-geus/nyhe...
www.geus.dk/om-geus/nyhe...
GEUS udgiver rapport om påvirkning af landskred ved Gauerslund Skovvej, Vejle Kommune
GEUS besvarer i en ny rapport en række spørgsmål fra Kystdirektoratet.
www.geus.dk
July 10, 2025 at 2:54 PM
I denne #GEUS rapport kan du få indblik i den geologiske faglighed, som kvalificerer spørgsmål fra #kystdirektoratet vedr. skredaktivitetssagen ført an af @ksvenenvig.bsky.social og @mariekeiding.bsky.social
www.geus.dk/om-geus/nyhe...
www.geus.dk/om-geus/nyhe...
Reposted by Kristian Svennevig
SPEECHLESS BEFORE / AFTER #BLATTEN
The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! 😱
All the forest has been razed and the ice/wood/debris dammed the Lonza river 🌊
Some buildings of Blatten are buried 🏠
📷 Pomona
The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! 😱
All the forest has been razed and the ice/wood/debris dammed the Lonza river 🌊
Some buildings of Blatten are buried 🏠
📷 Pomona
May 28, 2025 at 3:34 PM
SPEECHLESS BEFORE / AFTER #BLATTEN
The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! 😱
All the forest has been razed and the ice/wood/debris dammed the Lonza river 🌊
Some buildings of Blatten are buried 🏠
📷 Pomona
The magnitude of destruction after the 3:24 pm collapse of Birch Glacier is immense! 😱
All the forest has been razed and the ice/wood/debris dammed the Lonza river 🌊
Some buildings of Blatten are buried 🏠
📷 Pomona
Reposted by Kristian Svennevig
Seeing Blatten buried again and again, from every angle...
Properly staggering! 😮😱
Properly staggering! 😮😱
May 28, 2025 at 6:51 PM
Seeing Blatten buried again and again, from every angle...
Properly staggering! 😮😱
Properly staggering! 😮😱
Making the rounds once more. This amazing story and collaborative effort that I was lucky enough to lead (in a very flat structure!) also still amazes me.
...it concluded since the landslide was triggered by the melting glacier, and since *that* happened due to rising global temperatures...
This was a signal - and a warning - from our rapidly changing world, heard in every single part of it.
Best we listen up.
www.science.org/doi/10.1126/...
10/
This was a signal - and a warning - from our rapidly changing world, heard in every single part of it.
Best we listen up.
www.science.org/doi/10.1126/...
10/
A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days
Climate change is increasingly predisposing polar regions to large landslides. Tsunamigenic landslides have occurred recently in Greenland (Kalaallit Nunaat), but none have been reported from the east...
www.science.org
May 13, 2025 at 3:17 PM
Making the rounds once more. This amazing story and collaborative effort that I was lucky enough to lead (in a very flat structure!) also still amazes me.
Reposted by Kristian Svennevig
Reminder 🔔 -- We're seeking a post-doctoral fellow to work with us on our Semper Crevasses project funded by @carlsbergfondet.dk.
The call below closes in two days!
The call below closes in two days!
March 14, 2025 at 7:23 AM
Reminder 🔔 -- We're seeking a post-doctoral fellow to work with us on our Semper Crevasses project funded by @carlsbergfondet.dk.
The call below closes in two days!
The call below closes in two days!
Reposted by Kristian Svennevig
Oh, this is another news-to-me one for me to notice. Bedrock slide into fjord southwest of Mount Moresby. Look at the wave runup on the opposite fjord wall!
@mabrideau.bsky.social @watershedlab.bsky.social @geobrentatlarge.bsky.social
@mabrideau.bsky.social @watershedlab.bsky.social @geobrentatlarge.bsky.social
March 13, 2025 at 6:00 PM
Oh, this is another news-to-me one for me to notice. Bedrock slide into fjord southwest of Mount Moresby. Look at the wave runup on the opposite fjord wall!
@mabrideau.bsky.social @watershedlab.bsky.social @geobrentatlarge.bsky.social
@mabrideau.bsky.social @watershedlab.bsky.social @geobrentatlarge.bsky.social
Reposted by Kristian Svennevig
AGU is gathering info/stories on impacts for this lawsuit and other potential actions here: forms.monday.com/forms/f553b2...
If you are in the US, please take a few minutes to share your input!
If you are in the US, please take a few minutes to share your input!
March 7, 2025 at 12:26 AM
AGU is gathering info/stories on impacts for this lawsuit and other potential actions here: forms.monday.com/forms/f553b2...
If you are in the US, please take a few minutes to share your input!
If you are in the US, please take a few minutes to share your input!
A 7 km² Landslide in Denmark?!
Take a look at this massive beauty! Our peaceful (some might say “boring”) Danish landscape near Vejle hides giant secrets: colossal landslides from thousands of years ago. Completely unknown to scientist and locals alike.
Take a look at this massive beauty! Our peaceful (some might say “boring”) Danish landscape near Vejle hides giant secrets: colossal landslides from thousands of years ago. Completely unknown to scientist and locals alike.
February 27, 2025 at 7:33 AM
A 7 km² Landslide in Denmark?!
Take a look at this massive beauty! Our peaceful (some might say “boring”) Danish landscape near Vejle hides giant secrets: colossal landslides from thousands of years ago. Completely unknown to scientist and locals alike.
Take a look at this massive beauty! Our peaceful (some might say “boring”) Danish landscape near Vejle hides giant secrets: colossal landslides from thousands of years ago. Completely unknown to scientist and locals alike.
Two new positions (PhD and 3y postdoc) at GEUS studying ancient landslides in Denmark. Funded by @carlsbergfondet.dk
Come work with me!
www.jobindex.dk/jobannonce/r...
www.jobindex.dk/jobannonce/r...
Come work with me!
www.jobindex.dk/jobannonce/r...
www.jobindex.dk/jobannonce/r...
February 11, 2025 at 7:00 PM
Two new positions (PhD and 3y postdoc) at GEUS studying ancient landslides in Denmark. Funded by @carlsbergfondet.dk
Come work with me!
www.jobindex.dk/jobannonce/r...
www.jobindex.dk/jobannonce/r...
Come work with me!
www.jobindex.dk/jobannonce/r...
www.jobindex.dk/jobannonce/r...
Can only recommend Lliam, his project and GEUS. Please share far and wide!
Hey All! 👋 Our project “Crevasses as indicators of ice-sheet stability” is looking for a post-doctoral fellow.
We’re looking for someone with experience observing and/or modelling crevasse fracture.
Advert: www.nature.com/naturecareer...
(closes 16 March 2025)
We’re looking for someone with experience observing and/or modelling crevasse fracture.
Advert: www.nature.com/naturecareer...
(closes 16 March 2025)
January 25, 2025 at 9:39 PM
Can only recommend Lliam, his project and GEUS. Please share far and wide!
Great piece on the mineral potential of Greenland with expert input from my colleague Thomas Finn Kokfelt. I can only fall in line with Thomas' conclusion: We need more geological mapping in Greenland.
Greenland is getting a lot of attention these days— and it’s all because of geology. I wrote a summary of the last 3+ billion years of Earth’s history for the BBC: 🧪 www.bbc.com/future/artic...
Greenland is getting a lot of international attention for its mineral resources – but what is hiding under the ice?
The riches thought to lie beneath Greenland's icy terrain have been coveted for more than a century. But how easy are they to access, and will climate change make any difference?
www.bbc.com
January 22, 2025 at 9:01 PM
Great piece on the mineral potential of Greenland with expert input from my colleague Thomas Finn Kokfelt. I can only fall in line with Thomas' conclusion: We need more geological mapping in Greenland.
Reposted by Kristian Svennevig
GEUS udgav i 2023 en rapport, som vurderer potentialet for kritiske råstoffer i #Grønland. Rapporten er udarbejdet i samarbejde med #Naalakkersuisut og baseret på EU’s nyeste liste over kritiske råstoffer.
Læs rapporten her: data.geus.dk/gpub-landing...
#criticalrawmaterials #kritiskeråstoffer
Læs rapporten her: data.geus.dk/gpub-landing...
#criticalrawmaterials #kritiskeråstoffer
January 13, 2025 at 4:40 PM
GEUS udgav i 2023 en rapport, som vurderer potentialet for kritiske råstoffer i #Grønland. Rapporten er udarbejdet i samarbejde med #Naalakkersuisut og baseret på EU’s nyeste liste over kritiske råstoffer.
Læs rapporten her: data.geus.dk/gpub-landing...
#criticalrawmaterials #kritiskeråstoffer
Læs rapporten her: data.geus.dk/gpub-landing...
#criticalrawmaterials #kritiskeråstoffer
Greenland deja-vu. This is becoming the norm on high alpine and Arctic slopes worldwide.
Are "we" ready for this and the larger-scale events lurking soon as we exceed mid-Holocene temperatures?
These slopes will experience temps they have not faced in 100k years - maybe even 1000k's
😱 - indeed
Are "we" ready for this and the larger-scale events lurking soon as we exceed mid-Holocene temperatures?
These slopes will experience temps they have not faced in 100k years - maybe even 1000k's
😱 - indeed
This is becoming the new winter norm! 😱
(with Saharan dust)
After Tschierva huge rock avalanche last april, the Colle delle Locce RA mimicked a 2.1 magnitude seism and covered a major Alpine valley glacier (Belvedere) with rock and dust!
Welcome to the permafrost degradation era!🥵
📷 Air Zermatt
(with Saharan dust)
After Tschierva huge rock avalanche last april, the Colle delle Locce RA mimicked a 2.1 magnitude seism and covered a major Alpine valley glacier (Belvedere) with rock and dust!
Welcome to the permafrost degradation era!🥵
📷 Air Zermatt
January 4, 2025 at 12:21 PM
Greenland deja-vu. This is becoming the norm on high alpine and Arctic slopes worldwide.
Are "we" ready for this and the larger-scale events lurking soon as we exceed mid-Holocene temperatures?
These slopes will experience temps they have not faced in 100k years - maybe even 1000k's
😱 - indeed
Are "we" ready for this and the larger-scale events lurking soon as we exceed mid-Holocene temperatures?
These slopes will experience temps they have not faced in 100k years - maybe even 1000k's
😱 - indeed
Denmark making it to this list for the first time since a 1994 rockfall at Møns Klint killed one person, which is also the only other fatality we know of in DK.
The 2024 entry is from a truely tragic incident where two kids got buried by a collapsing soft sediment coastal cliff only 5-10 m tall.
The 2024 entry is from a truely tragic incident where two kids got buried by a collapsing soft sediment coastal cliff only 5-10 m tall.
This is a map of all of the fatal landslides, bar those triggered by earthquakes, that I recorded in 2024.
January 3, 2025 at 4:09 PM
Denmark making it to this list for the first time since a 1994 rockfall at Møns Klint killed one person, which is also the only other fatality we know of in DK.
The 2024 entry is from a truely tragic incident where two kids got buried by a collapsing soft sediment coastal cliff only 5-10 m tall.
The 2024 entry is from a truely tragic incident where two kids got buried by a collapsing soft sediment coastal cliff only 5-10 m tall.
On a personal note, with this, I’ve now published on every historical Greenlandic landslide✔️🏁
This should prove a solid base for future research in Gr landslides, mine or others.
Next up: Danish landslides. Stay tuned for updates in the new year!
This should prove a solid base for future research in Gr landslides, mine or others.
Next up: Danish landslides. Stay tuned for updates in the new year!
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
Two similar permafrost degradation landslides at Paatuut, West Greenland, caused tsunamis of substantially different magnitudes - Landslides
On November 21, 2000 CE, the c. 48 × 106 m3 Paatuut landslide in West Greenland triggered a tsunami with a maximum runup height of c. 45 m. Although a field team examined the landslide in the immediat...
link.springer.com
December 28, 2024 at 8:40 PM
On a personal note, with this, I’ve now published on every historical Greenlandic landslide✔️🏁
This should prove a solid base for future research in Gr landslides, mine or others.
Next up: Danish landslides. Stay tuned for updates in the new year!
This should prove a solid base for future research in Gr landslides, mine or others.
Next up: Danish landslides. Stay tuned for updates in the new year!
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
Two similar permafrost degradation landslides at Paatuut, West Greenland, caused tsunamis of substantially different magnitudes - Landslides
On November 21, 2000 CE, the c. 48 × 106 m3 Paatuut landslide in West Greenland triggered a tsunami with a maximum runup height of c. 45 m. Although a field team examined the landslide in the immediat...
link.springer.com
December 28, 2024 at 8:37 PM
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
🚨New paper on two giant landslides in Greenland🚨
We examine two massive landslides in 1996 and 2000 at Paatuut. The landslides had the same volume, but the tsunamis were wildly different: one was 15 m, and the other 45 m. + many more quirks and implications.
link.springer.com/article/10.1...
Thrilled to share that I’ve received a @carlsbergfondet.dk Semper Ardens Accelerate grant to study giant ancient landslides in DK and how they formed in the paraglacial environment.
PhD & postdoc position announcement coming soon, so watch this space!
www.carlsbergfondet.dk/en/what-we-h...
PhD & postdoc position announcement coming soon, so watch this space!
www.carlsbergfondet.dk/en/what-we-h...
Reimagining Previously Glaciated Lands | Carlsbergfondet.dk
www.carlsbergfondet.dk
December 18, 2024 at 10:21 AM
Thrilled to share that I’ve received a @carlsbergfondet.dk Semper Ardens Accelerate grant to study giant ancient landslides in DK and how they formed in the paraglacial environment.
PhD & postdoc position announcement coming soon, so watch this space!
www.carlsbergfondet.dk/en/what-we-h...
PhD & postdoc position announcement coming soon, so watch this space!
www.carlsbergfondet.dk/en/what-we-h...
Some excellent starter packs here by @watershedlab.bsky.social :
OK here you go! Some starter packs for people that like 🧪⚒️❄️
Glaciologists and people who like frozen things
go.bsky.app/HG2KgXZ
Geomorphology and Earth surface processes
go.bsky.app/CQzthwb
Geohazards and disaster professionals
go.bsky.app/K1RqXtr
Glaciologists and people who like frozen things
go.bsky.app/HG2KgXZ
Geomorphology and Earth surface processes
go.bsky.app/CQzthwb
Geohazards and disaster professionals
go.bsky.app/K1RqXtr
Here’s some unsolicited advice— keep making starter packs. Absolutely share old ones too, but make your own. You don’t need to come up with a new or original concept. Just do your own take. There’s new people here every day looking for folks to follow. It’s about growing the communities of interest.
December 15, 2024 at 9:05 PM
Some excellent starter packs here by @watershedlab.bsky.social :
How wonderful: Artist @swaantje-guentzel.bsky.social made our awesome paper into an awesome Xmas card🎅. I guess I can scratch paper-turned-Xmas card off the bucket list then✔️. www.science.org/doi/abs/10.1...
December 13, 2024 at 9:41 AM
How wonderful: Artist @swaantje-guentzel.bsky.social made our awesome paper into an awesome Xmas card🎅. I guess I can scratch paper-turned-Xmas card off the bucket list then✔️. www.science.org/doi/abs/10.1...
In early 2024 Møns Klint experienced three rather large (for DK) landslides with up to 200 m run-out. Here 11 months later the chalk dominated landslide deposits are still eroding. Look at that sediment plume here almost a year later! Copernicus sentinel-2 images by EO browser
November 22, 2024 at 1:07 PM
In early 2024 Møns Klint experienced three rather large (for DK) landslides with up to 200 m run-out. Here 11 months later the chalk dominated landslide deposits are still eroding. Look at that sediment plume here almost a year later! Copernicus sentinel-2 images by EO browser