A 1771 antique map, a 3D print of a beautiful LiDAR DEM, a glaciotectonic complex, some giant landslides and one of my all-time favourite field sites: Røsnæs, Denmark. When it all lands on your desk at once 🤘🤯

Podcast: Forskeres minutiøse detektivarbejde har afsløret, at et fjeldskred sidste år udløste verdenshistoriens næststørste tsunami på 481 meter i en billedskøn fjord, som tiltrækker eventyrlystne turister. Lyt og få en tsunami i øret @ksvenenvig.bsky.social politiken.dk/del/GuiltCAH...

A wonderful new paper (Shugar et al. 2026) on the 150 million tonne Tracy Arm landslide and tsunami will have profound but challenging implications for the management of risk in fjords around the world in an age of increased tourism and rapid climate change:- eos.org/thelandslide...

Læs i pol om vores helt friske studie i Science om verdens næsthøjeste bølge!

This long-lasting, globally observable seiche is only the second time such a signal has been observed, after the Dickson Fjord event in 2023, described in this study by @ksvenenvig.bsky.social and others www.science.org/doi/10.1126/...

Et forskerhold med dansk deltagelse har løst mysteriet om, hvorfor vores klode rystede 36 timer i træk. Læs og lyt med her, hvordan det både skræmmende og fascinerende naturfænomen opstod, og hvorfor det vil ske med større frekvens i fremtiden @ksvenenvig.bsky.social politiken.dk/del/tvYowYAH...

🌊 Our paper on the 2nd highest wave ever recorded – 481 m – is out in Science! A massive landslide-tsunami in Tracy Arm, Alaska, preconditioned by climate change. A genuine near-miss for cruise ship passengers. 🔗 doi.org/10.1126/scie... Thanks for leading this @watershedlab.bsky.social

Elevated water table triggering an idealised 3D-printed rotational landslide. Complete with a Monopoly house on top. A paper, presenting six different 3D-printable landslide models, has now been submitted for review. Once it is published, they will all be made freely available. Get printing!

Tsunamigenic rockslide on your desktop? This is a scaled and simplified model of the 2017 Karrat landslide. I think it captures the dynamics of the tsunami generation quite well, though it is of course, very simplified.

🚨 First scientific output of 2026 🚨 “An Inventory of Objectively Awesome Landslide Songs” 🎶⛰️ Yes, it’s a real playlist. Landslide themed + a couple of mudslides/avalanches, of course. Any obvious omissions? (must satisfy: objectively awesome ∩ landslide-themed)? link.deezer.com/s/32ehBHwzCE...

🚨 First scientific output of 2026 🚨 “An Inventory of Objectively Awesome Landslide Songs” 🎶⛰️ Yes, it’s a real playlist. Landslide themed + a couple of mudslides/avalanches, of course. Any obvious omissions? (must satisfy: objectively awesome ∩ landslide-themed)? link.deezer.com/s/32ehBHwzCE...

At #NWGM2026 conference, @ksvenenvig.bsky.social showed me a 3D-printed map of a #landslide in flattish Denmark and if this isn’t a great example of the power of lighting angles on DEMs, I don’t know what is. 🧪⚒️

and i was todays yers old when i found out (most) n-americans eat with the knife and fork opposite! 🍴=correct. For god's sake @watershedlab.bsky.social even the emojis agree with me on this 🍽️

💡Hvilke erfaringer og indsigter tog deltagerne med hjem fra forskningslederkurset? Sammen med 18 andre forskere deltog lektor Anja Marie Bornø Jensen og seniorforsker @ksvenenvig.bsky.social i ’Carlsberg Foundation Research Leadership Course’. Næste forløb udbyder vi i 2027 #dkforsk

Look what arrived: Just bought two original hand-painted prints from Møns and Stevns Cliffs, Denmark, from 1851. These are photorealistic, made in collaboration by some of the best artists and scientists of the era.

Just add water: 3D printed rotational landslide. 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.

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.

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. 🧵

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...

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

Seeing Blatten buried again and again, from every angle... 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.

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!

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

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!

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.

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...

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.

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

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

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.

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!

‪ 🚨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...

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...

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

Is there a "landslide starter pack" in here? #landslide

Happy to get @davepetley.bsky.social perspective on our recent paper on the Nordic Waste landslide in DK

Oh, Android dictionary: you know me too well!

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