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Posts by Michal Břežný

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Patagonie: Přes tři miliony let v pohybu Na první pohled působí východní Patagonie jako krajina, která se po miliony let nemění. Suché plošiny z tmavých čedičů, hluboké srázy a vysychající jezera Musters a Colhué Huapi budí dojem dlouhodobé…

Kdyby Lucy žila v Patagonii, tak by mohla sledovat vznik obrovských sesuvů.
alive.osu.cz/patagonie-3-...

Krátce o našem posledním článku z Patagonie.

1 month ago 1 0 0 0
The aftermath of the 1 March 2026 rockfall Fjæra in Etne in Norway. Image released by Frode Mæland

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

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.

1 month ago 31 9 0 0
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Lane's Balance - Interactive Fluvial Geomorphology Explore how sediment supply, grain size, water discharge, and slope affect river channel patterns through an interactive visualization.

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/

2 months ago 1 0 0 0
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European ground motion service - skvělá služba, která zpracovává data z družic Sentinel-1, ukazuje, že se to tam hýbalo už posledních 6 let (oranžové a červené body značí pokles povrchu).
egms.land.copernicus.eu#llh=14.38300...

2 months ago 2 0 0 0
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Takhle to tam vypadalo předtím. Podle dostupných informací má odlučná hrana sesuvu cca 4 km, to by znamenalo celý Z a V okraj města. Cca 1500 lidí muselo být evakuováno.

2 months ago 2 0 1 0
MASSIVE Landslide Leaves Cars, Homes Dangling Off Cliff in Sicily
MASSIVE Landslide Leaves Cars, Homes Dangling Off Cliff in Sicily YouTube video by New York Post

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...

2 months ago 2 0 1 0
Rock avalanche below Mt King George triggered by the 6 December 2025 Hubbard Glacier Earthquake. The runout distance is 1.4 km.

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

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...

3 months ago 89 39 1 6
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West Bay cliff fall blocks beach on Dorset's Jurassic Coast Suzanne Sears describes the moment of the collapse as she walked near West Bay in Dorset.

www.bbc.co.uk/news/article...

3 months ago 8 5 0 3
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My rapid analysis of the recent GLOF (?) in Gupis, Gilgit-Baltistan www.cesbio.cnrs.fr/multitemp/ra...

7 months ago 13 7 1 1
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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.

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.

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...

9 months ago 31 13 2 1
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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 📷🌊

9 months ago 3 2 0 0
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🚨 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...

9 months ago 2 1 0 0
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Změna klimatu a sesuvy v horách: Co ukázal případ Blatten - Ekolist.cz Katastrofický kolaps ledovce ve švýcarské vesnici Blatten v květnu 2025 připomněl, že hory nejsou jen klidné scenérie, ale krajina v pohybu. Klimatická změna narušuje jejich stabilitu – tání ledovců i...
9 months ago 11 3 0 0
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Změna klimatu a sesuvy v horách: Co ukázal případ Blatten - Ekolist.cz Katastrofický kolaps ledovce ve švýcarské vesnici Blatten v květnu 2025 připomněl, že hory nejsou jen klidné scenérie, ale krajina v pohybu. Klimatická změna narušuje jejich stabilitu – tání ledovců i...

Návrat k událostem, které vedly k pohřbení vesnice Blatten. Aneb krátce o sesuvech a změně klimatu.

ekolist.cz/cz/publicist...

9 months ago 2 0 0 0
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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
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10 months ago 95 28 2 1
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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! 📷🙏

10 months ago 65 14 3 2

Snažíš se vyčistit vakuovou komoru od bahna z předešlých experimentů?

10 months ago 5 0 1 0
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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

10 months ago 125 55 4 4
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🌍 Michal Břežný, Ph.D.– Svahy v pohybu: Ujíždí nám zem pod nohama?
@geomikesh.bsky.social

10 months ago 3 1 1 0
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Aerial view westward over the Blatten deposit and the newly formed lake upstream! 🧊🌊

📷Via Christian Petit/Linkedin

10 months ago 321 101 7 14

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.

10 months ago 16 3 2 0

Tímto ale příběh nekončí. Materiál zablokoval řeku Lonza a začalo vznikat jezero, které v případě protrhnutí hráze může ohrozit obce níže po toku.

10 months ago 2 0 0 0

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.

10 months ago 3 0 1 0
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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...

10 months ago 999 591 37 162
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Upstream and downstream view of the deposit! 🧊🌊

Massive... 😱😱😱

www.letemps.ch/suisse/valai...

10 months ago 145 56 5 6
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Drohnenbilder zeigen das Ausmass des Abbruchs - News-Clip - Play SRF APP Drohnenbilder

www.srf.ch/play/tv/news...

10 months ago 14 5 0 1

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...

10 months ago 84 27 3 5
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#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!
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📷 Keystone

10 months ago 34 12 1 0

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

11 months ago 10 2 0 1

🛸 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?

11 months ago 2 2 1 0