Felix Pfluger

The relationship between the inflow angle, and the channel gradient , from the study of large landslides by Kharismalatri, Gomi & Sidle (2025).

A new paper (Kharismalatri, Gomi & Sidle 2025) in the journal Natural Hazards uses the concepts of the inflow angle and the channel gradient to examine the behaviour of large landslides after failure. It show that those two measurements predict the behaviour of most slopes.
eos.org/thelandslide...

Stunning paraglacial landsliding on Brouillard Glacier today! 😱
(Italian side of Mont Blanc)

🎥 David Picchedda / IG

Pasterze (Hohe Tauern, AT)
1938 | 2025

Staggering loss of volume o the largest Austrian glacier... still for few days!🔥

When the (now tiny) icefall breaks up, it will no longer be the largest ice imass in Austria!

@landervt.bsky.social

Mediterranean marine sediment cores database: unlocking paleoclimatic signals for the last 20,000 years - Scientific Data Scientific Data - Mediterranean marine sediment cores database: unlocking paleoclimatic signals for the last 20,000 years

👏 Mediterranean marine sediment cores database: unlocking paleoclimatic signals for the last 20,000 years

www.nature.com/articles/s41...

The #Glacier Loss Day is reached in Switzerland!
From now on all melt that occurs on glaciers until October is unsustainable. This tipping point has only been reached so early in the record-shattering year 2022.
Expect big ice loss due to the prolonged melt season and feedback effects

Several mudslides occurred in Gschnitz on Monday evening! 🌊
100 trapped people from the village and three mountain huts had to be evacuated by helicopter by the Army.
The extent of destruction is enormous.

Events of such intensity are increasing! 😱

Source www.instagram.com/p/DLjemMiikK...

Niederschlagsaufzeichnung /Precipitation record: almost 100 mm PP within 2 hours triggered the multiple debris flows.
Data by hydro.tirol.gv.at#/72h-Nieders...

Gschnitztal: Straße für Einsatzkräfte frei Im Gschnitztal wurden Dienstagfrüh die Baggerarbeiten wieder aufgenommen, kurz vor Mittag konnte die Straße bis zum Talschluss für Einsatzkräfte freigegben werden. Die Zugänge zu mehreren Schutzhütten...

English: Several debris flows occurred in Gschnitz, Tyrol, and the surrounding area on Monday afternoon following a thunderstorm with heavy rainfall. Some pictures showing the extent of the damage - tirol.orf.at/stories/3311....
No injuries.

Mehrere Murabgänge in Gschnitz, Tirol, und Umgebung. Montag nachmittags nach Gewitter mit starken Niederschlägen. Einige Bilder, welche das Ausmaẞ zeigen - tirol.orf.at/stories/3311....
Ohne Personenschäden🤞

A Swiss village was buried under a mountain. This town could be next. In the past century, scientists have observed more rockfalls and avalanches in the Alps, a looming threat to nearby villages.

Recent article and intense photography by #NationalGeographic on #permafrost -related hazards in the Swiss Alps, 2025 - covering the tragedy at #Blatten and potential future failure at #SpitzeStei.
www.nationalgeographic.com/environment/...

The ongoing marine heatwave in the Mediterranean Sea is one of the the largest marine anomalies observed globally

We are losing climate records that we will never get back, and Human is entirely responsible for this! 🔥
🧊
Triangle du Tacul ice was dated in 2017 at 700 yr BP in surface and 6300 yr BP at 60 cm depth!

And all melted to bedrock between 2022 and 2024! 😱

Source L. Ravanel/X. Cailhol 🙏

[1/2] Geomorphology at Oberreintal (GER). Ancient rock slide deposits daming glacial shaped valley (> 200 000 m2, [47.41008 11.10601]). Headscarp @ middle left. Debris cones indicate high rockfall activity today. The mountaineering hut Oberreintalhütte (circel) is founded on the rock slide deposits.

[2/2] Geomorphology at Oberreintal, Schüsselkarspitze in the middle left, geological unit ist Wetterstein limestone. Deposits of winter rockfall are deflected by morphology. Trace is marked by the reddish rock

This morning @lastquake.bsky.social reports a magnitude 4.5 earthquake on the SE coast of #Greenland.
www.emsc-csem.org/Earthquake_i...
This is probably not an earthquake, but rather a huge landslide in a fjord caused by thawing #permafrost. To be confirmed ...

#Oberreintal ist the correct wording;)

#Rockfall inventory of Eastern Alps: > 75% of all rockfalls originate from #permafrost rock; 40% of documented rockfalls occurred in recently deglaciated areas since 1969! Check out the work of colleagues from @bokuvienna.bsky.social: onlinelibrary.wiley.com/doi/full/10....

A long series of similar rockfall/rockslide events in Switzerland now has another BIG dot in the upper right hand corner:

[1/2] Warming permafrost promotes rock slope failures of preconditioned slopes by reducing mechanical properties such as shear strength, fracture toughness, and tensile strength of rock.
Recent rock slides strongly influenced by permafrost warming are #Blatten (CH), #Fluchthorn (AT)

[2/2] Our model of the Fluchthorn rock slide in 2023 suggests failure upon permafrost temperatures approaching 0°C -> Modelled using laboratory deviated temperature-dependent shear parameters for discontinuities; failure planes are pre-defined by geology

How the shift of warm ice in #polythermal #glacier triggers #Bergsturz -sized rock slides: i.e. Bliggspitze (AT), Piz #Scerscen (CH) -> Keyword: buildup of hydrostatic pressure; new failure mechanism proposed esurf.copernicus.org/articles/13/...