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Michal Břežný @geomikesh.bsky.social · 28/08/2026

Pokud vás zajímá i trochu pozadí výzkumu těchto katastrof, podívejte se na tento rozhovor s Danem Shugarem z University of Calgary.

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Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 28/08/2026

Folks, @callanbentley.bsky.social had me on his youtube show to discuss the Nepal flood disaster. Have a watch. 🧪⚒️https://www.youtube.com/watch?v=qrUx1qYIW4U

youtube.com

Analysis of the Nepal/Tibet flood: interview with geomorphologist Dan Shugar

YouTube video by Callan Bentley

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Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 28/08/2026

By now we know that it was not JUST glacier ice, but a tremendous bedrock landslide that collapsed in Nepal. @planet.com satellite imagery shows a fairly large (0.17km2) lake has formed, which could release a sizeable flood if it were hit by further rockfalls. This is concerning for rescue workers.

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Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 26/08/2026

The source of the flood in Nepal is a collapsed glacier 🧪⚒️

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Dr. Petr Brož @chmee2.bsky.social · 19/06/2026

Hele, ode mě to nevíte... ale v pondělí nám vyjde tiskovka k jednomu super cool výzkumu, co jsme dělali s @geomikesh.bsky.social v Azerbajdžánu... více k tomu ve videu Tak ať můžete říkat, že jste to věděli jako první! youtu.be/_b2njUW0sgg

youtu.be

Když bahno teče jako ledovec: Objev, který nás dost překvapil!

YouTube video by Dr. Petr Brož

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Dave Petley @davepetley.bsky.social · 02/03/2026

On 1 March 2026, a dramatic rockfall occurred on the E134 road at Fjæra in Norway. An occupied pickup truck was crushed, but no-one was killed. The event was captured in an excellent video. eos.org/thelandslide... Image by Frode Mæland, who owns (owned?) the car.

The aftermath of the 1 March 2026 rockfall Fjæra in Etne in Norway. Image released by Frode Mæland

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Michal Břežný @geomikesh.bsky.social · 28/01/2026

Průtok a sklon koryta vs. množství a velikost sedimentů. Základní koncept fluviální geomorfologie ukazující chování vodních toků. Trochu jsem blbnul Claude Code a vytvořil vizualizaci tohoto konceptu. Můžete vyzkoušet zde: michalbrezny.github.io/River-Balance/

michalbrezny.github.io

Lane's Balance - Interactive Fluvial Geomorphology

Explore how sediment supply, grain size, water discharge, and slope affect river channel patterns through an interactive visualization.

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Michal Břežný @geomikesh.bsky.social · 27/01/2026

Na Sicílii došlo k obrovskému sesuvu. Možná vás tato zpráva minula, protože jste sledovali jinou katastrofu, která se nachází v Černínském paláci. Každopádně záběry z města Niscemi jsou ohromující. Některé domy stojí nad odhadem 30 m vysokým útesem. www.youtube.com/watch?v=9tCD...

youtube.com

MASSIVE Landslide Leaves Cars, Homes Dangling Off Cliff in Sicily

YouTube video by New York Post

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Dave Petley @davepetley.bsky.social · 05/01/2026

A sensational guest post by Derek Cronmiller, Theron Finley Panya Lipovsky and Jan Dettmer of the Yukon Geological Survey: Photos and Preliminary Observations from an Overview Flight of the 6 December 2025 Hubbard Glacier Earthquake, Yukon Territory, Canada. eos.org/thelandslide...

Rock avalanche below Mt King George triggered by the 6 December 2025 Hubbard Glacier Earthquake. The runout distance is 1.4 km.

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Simon Gascoin @sgascoin.bsky.social · 24/08/2025

My rapid analysis of the recent GLOF (?) in Gupis, Gilgit-Baltistan www.cesbio.cnrs.fr/multitemp/ra...

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Dave Petley @davepetley.bsky.social · 25/06/2025

On 24 June 2025, a significant landslide destroyed the Houzihé Grand Bridge on the Xiarong Expressway in Guizhou, China. A truck driver had an extremely lucky escape when his vehicle was left dangling into the void. eos.org/thelandslide...

Aerial photograph showing the aftermath of the 24 June 2025 landslide at Houzihé Grand Bridge in Guizhou, China. Image from CNR. The image shows a large landslide scar with both carriage was destroyed. A truck can seen hanging over the edge of one of the carriageways.

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Tomas Galia @tomgalia.bsky.social · 23/06/2025

Back from the mountain rivers of Greece! We collected field data for simulating future floods in a catchment hit by Storm Daniel in 2023. Bonus: photos captured on 35mm film with my old Leica 📷🌊

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Tomas Galia @tomgalia.bsky.social · 23/06/2025

🚨 New paper out in CATENA! After 6 years of fieldwork in Czech headwater streams, we show: ✅ In channelized streams, gravel moves farther. ✅ In near-natural streams, sediment transport is more predictable—better linked to flow magnitude & duration. Read more: www.sciencedirect.com/science/arti...

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Melaine Le Roy @subfossilguy.bsky.social · 30/05/2025

First drone flight today at Blatten! 🌊🎥 Water has made its path through the deposit! A spillover is currently not expected Slight lowering of upstream lake, which is currently not high enough to spill over the debris cone Several new lakes created on the deposit Source SRF 1/

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Melaine Le Roy @subfossilguy.bsky.social · 29/05/2025

BEFORE / AFTER Birch glacier collapse 😮😱 There WAS a glacier here! 🧊 Not only the front, but the entire ice mass has slid down the valley! 🌊 Glad Alain Amherd took two pics with the same angle! 📷🙏

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Melaine Le Roy @subfossilguy.bsky.social · 29/05/2025

The extent of the deposit from the Birch Glacier collapse over Blatten as seen by newly available high-resolution satellite imagery collected by Maxar! 🛰️ Processed by @wxnb.bsky.social

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Zeptej se vědce @zeptejsevedce.bsky.social · 29/05/2025

🌍 Michal Břežný, Ph.D.– Svahy v pohybu: Ujíždí nám zem pod nohama? @geomikesh.bsky.social

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Melaine Le Roy @subfossilguy.bsky.social · 29/05/2025

Aerial view westward over the Blatten deposit and the newly formed lake upstream! 🧊🌊 📷Via Christian Petit/Linkedin

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Dave Petley @davepetley.bsky.social · 29/05/2025

The fascinating thing about these images of the #Blatten event is the scale of the original rockslide that got us all excited a week ago. It is just visible towards the top of the slope. This is a posterchild for a complex, cascading hazard that evolves rapidly and unpredictably.

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Michal Břežný @geomikesh.bsky.social · 28/05/2025

Švýcarská vesnice Blatten byla dnes z velké části pohřbena pod masou ledu, sutě a kmenů. Kolaps ledovce Birch završil několikadenní drama. To začalo murou, evakuací vesnice a sesuvem z Kleine Nesthorn. Sesuv způsobil zrychlení pohybu ledovce, které vyústilo v dnešní kolaps.

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Melaine Le Roy @subfossilguy.bsky.social · 28/05/2025

INCREDIBLE !! Here we are... 😱😱😱 After days of overloading and cracks propagating, Birch Glacier collapsed today at 3.24 pm over Blatten and the dammed Lonza river... Devastating! 😭 www.letemps.ch/suisse/valai...

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Melaine Le Roy @subfossilguy.bsky.social · 28/05/2025

Upstream and downstream view of the deposit! 🧊🌊 Massive... 😱😱😱 www.letemps.ch/suisse/valai...

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Simeon Schmauß @stim3on.bsky.social · 28/05/2025

Before and after image of the large glacier collapse that covered parts of the Swiss village #Blatten. The animation is stabilized/aligned from a version shared by Pomona/Alain Amherd Source: pomona.ch/en/story/590...

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Melaine Le Roy @subfossilguy.bsky.social · 26/05/2025

#Blatten Press conference Alban Brigger, -glacier front velocity is 2.5-3 m/day. ‘We do not expect an exponential acceleration, as we feared before.’ -the amount of debris deposited on the glacier is 3.5 Mm3 = 9 M t. Up to 80 m thick! 1/ 📷 Keystone

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Dave Petley @davepetley.bsky.social · 22/05/2025

This is a completely new landslide trigger for me - the impact of a 100 m cargo ship. Utterly bizarre.

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Zeptej se vědce @zeptejsevedce.bsky.social · 21/05/2025

🛸 Jan Pergl, Ph.D. – Nevítaní vetřelci: Čeká nás Den trifidů? @jan-honza-pergl.bsky.social 🌍 Michal Břežný, Ph.D.– Svahy v pohybu: Ujíždí nám zem pod nohama? @geomikesh.bsky.social 🌃 Mgr. Vendula Lužná, Ph.D. – Světlo, přítel člověka: Jak moc nás ovlivňuje světelný smog?

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Melaine Le Roy @subfossilguy.bsky.social · 19/05/2025

Today (~12pm) the scar has reached the top of Klein #Nesthorn which resulted in a lowering of the crest and a ruiniform morphology!😳😱 📷 sensalpin.ch

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Melaine Le Roy @subfossilguy.bsky.social · 19/05/2025

Already + 100,000 m3 fallen from the Klein Nesthorn N face at ~3200 m asl, and something between 1 to 5 Millions m3 more are 'forecasted'... 😱 That's quite a thing! Blatten village evacuated 😭 The 'Crumblocene' is definitely a nice time to live! 🏔️🌊 www.20min.ch/fr/story/can...

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Tim Dawson @timblor.bsky.social · 14/05/2025

I discovered today that Google Earth now has post-earthquake imagery from the 3/28/25 M7.8 earthquake in Myanmar. The area includes the site we trenched in 2018 before the earthquake to look for evidence of past earthquakes. The image shows the locations of our trenches with the 2025 ruptures. 1/3

Satellite image of an area north of Sagaing, Myanmar along the Sagaing fault and surface ruptures (highlighted in light red lines) with the locations of our 2018 trenches shown in blue lines

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Tomas Galia @tomgalia.bsky.social · 08/05/2025

A bit of a break during fieldwork—here are a few analog shots from our monitoring of gravel bars on the Elbe River near the CZ/DE border. Captured with a 70y old Leica IIIg + Elmar 50 mm 3.5 + Fomapan Ortho 400. Always nice to mix science with some classic photography!

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Tomas Galia @tomgalia.bsky.social · 06/05/2025

Planning to attend the IAG Conference in New Zealand next year? Working with fluvial systems? If yes, consider submitting an abstract to our session: "Lessons Learned About Anthropogenic Drivers in River Evolution." www.confer.co.nz/icg2026/anth...

confer.co.nz

Anthropogenic geomorphology - 2026 IAG International Conference on Geomorphology

Anthropogenic geomorphology Ecological Baselines for river, floodplain, and lake restoration: from Traditional to Molecular Approaches Professor Antony

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Tomas Galia @tomgalia.bsky.social · 08/04/2025

(1/2) Much has been said about the degradation of gravel bars due to river regulation — but far less is known about how they can develop in long-channelized reaches ▶️

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Anne Applebaum @anneapplebaum.wsocial.eu · 07/04/2025

Trump has done the same damage to our health, environment and security as to our markets, it's just that there isn't a stock ticker that measures the impact so clearly

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Tomas Galia @tomgalia.bsky.social · 06/04/2025

Spent last week crisscrossing Czechia, collecting hydromorphological data from all sorts of streams and rivers. It was a great reminder of how wildly diverse our fluvial systems are — and, at times, how brutally over-regulated some channels still are… even out in the countryside 🤕

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Tomáš Urban 🍂 @tomasurban.bsky.social · 02/04/2025

Posun o 4,5 m. 🫣

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Michal Břežný @geomikesh.bsky.social · 30/03/2025

Po třinácti letech zase v kapele… asi mam dost času 😆

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Dr. Petr Brož @chmee2.bsky.social · 28/03/2025

Oblast Thajska a Barmy dneska ráno postihlo silné zemětřesení o magnitudu 7,7. V oblasti budou značné materiální škody i oběti na životech. Tady je například video z Bangkoku ukazující kolaps rozestavěné výškové budovy.

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Michal Břežný @geomikesh.bsky.social · 22/03/2025

Some photos of this year's field in Patagonia. Probably the last visit to this part of Patagonia in my life. And maybe Patagonia in general... A little nostalgia.

Drone photo from Patagonia. Open flat ground, mesa on the horizon, gravel road

River incised into red and white rocks forming a canyon

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Zeptej se vědce @zeptejsevedce.bsky.social · 19/03/2025

Kroky politické reprezentace USA otřásají tamní vědou. Poslední týdny probíhá nátlak na univerzity, aby se vzdaly autonomie a svobody bádání a snahu cenzurovat vědecké poznání, které se z ideologického hlediska nehodí. Ač jsme obvykle apolitičtí, sepsali jsme toto vyjádření 👇 1/3

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Melaine Le Roy @subfossilguy.bsky.social · 15/03/2025

Viedma Glacier 2017 | 2025 Viedma (3rd largest glacier in South America) has known the most incredible rate of frontal ablation recently! 🔥 What's even more striking is that this is happening above what has just become the deepest lake on the American continent (919 m deep)! 🥇🧊🌊 1/

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Ro Salarian @rosalarian.bsky.social · 17/02/2025

In my city there is one cybertruck and one DIY parody of a cybertruck and the parody truck has become a local celebrity. Meanwhile, I always wish I had some rotten eggs to throw at the tesla whenever I see it.

A parking lot showing a cybertruck in one spot, next to a car that has built a cybertruck-esque shell around it out of green plastic. It's really hard to describe exactly how silly this vehicle looks next to the green car.

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