Climate change leads mountain guides in the Alps to alter their choice and timing of high-altitude routes, reacting to increasing danger 🧪 gh.copernicus.org/articles/80/...

A number of #gaphaz members, including glaciologists from #Tajikistan, are investigating a sequence of catastrophic #detachments from #Didal glacier following sudden, #surge like accelerations this summer and fall. Stay tuned for more! #hazard #risk #glacier #sciene #mountains

As #COP30 heats up, superb visual storytelling in @nytimes.com about climate change & the threat of glacial lake outburst floods in the Himalaya, featuring the work of @cscottwatson.bsky.social and quotes from @kristencook.bsky.social @sonamshp.bsky.social and me. 🧪⚒️ www.nytimes.com/interactive/...

📘 New paper: Post-Little Ice Age Shrinkage of the Tsaneri–Nageba Glacier System and Recent Proglacial Lake Evolution in the Georgian Caucasus 📉Glacier shrank ~43% since ~1820 🌊Lake grew from ~14,000m² in 2015 to ~107,900 m² 2025 ⚠️Hazard + water resources implications www.mdpi.com/2073-4441/17...

Some good news from space, as the NASA-ISRO NISAR mission publishes its first synthetic aperture radar images of Earth. This spacecraft has a heckin' big antenna (a dish 12 meters across) for bouncing L- and S-band (25- and 10-cm) radio waves off the surface www.jpl.nasa.gov/news/nasa-is...

The Matai’an landslide dam in eastern Taiwan has failed this afternoon (eos.org/thelandslide...), flooding Guangfu, about 15 km downstream focustaiwan.tw/society/2025.... Even in the middle of a typhoon, the resulting flood produced a detectable seismic signal at stations ~40 km away.

Die Unwetter 2024 forderten in der Schweiz 13 Todesopfer, 3 Vermisste und verursachten Schäden von 905 Mio. CHF. Es handelt sich um die fünfthöchste Jahresschadenssumme seit Beginn der Erhebungen 1972. www.wsl.ch/de/news/unwe... @bafu.admin.ch #Schweiz #WSL #Naturgefahren #Forschung

We are at #IMC2025 in Innsbruck this week! Be sure not to miss our official #gaphaz session: FS 3.148 - Glacier and permafrost risks in a changing climate (Wed. 13:30). Convened by @jane-walden.bsky.social, #Marta-Chiarle and #Mylène-Jacquemart

#GAPHAZ members are well represented at #IMC2025 in #Innsbruck 🏔️ this week and there are several sessions directly related to #glacial and #periglacial #hazards! We will kick things off tomorrow afternoon with a session on #Alpine #Mass #Movements. In SOWI - HS 3! imc2025.info/imc25/sessio...

Excellent compilation of information about the Tracy Arm #landslide and #tsunami in #Alaska ! Check out the information put together by @akearthquake.bsky.social! earthquake.alaska.edu/event/025a7d... #glacier #warning #hazards #risk #science

🚨 Important paper in Nature: "Systematic attribution of heatwaves to the emissions of carbon majors". www.nature.com/articles/s41...

Exciting new NSF-funded initiative to advance knowledge about natural hazards! We look forward to learning more and seeing exciting science coming out of this!

Today marks 60th anniversary of the Mattmark catastrophe, one of the deadliest glacier-related disaster in the Alps and largest catastrophe in Swiss modern history! 🧊🌊 30th Aug 1965: 2 Mm3 of Allalin Gl. broke off on Mattmark dam construction site, killing 88, many of whom were Italian immigrants 😭

Very nice overview of the recent #GLOF in Pakistan by @sgascoin.bsky.social! There is so much going on these days, it’s great that various people in the community manage to find time to document these events! Fingers crossed that nobody was harmed. www.cesbio.cnrs.fr/multitemp/ra...

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

Just when we thought NISAR would always „launch in two years“ it is finally here! Among other, it will provide valuable data on ground displacement to better understand and forecast landslides, also in high-mountain regions! Congrats to all involved!! #nasa #stem #risk #hazards #landslide #data

Nice one @geophysichick.bsky.social! How far in advance did you register these?

Juneau officials say new flood-control barriers are holding, making for far less damage than during last year’s destructive glacial outburst from Suicide Basin.

There are a tremendous number of icebergs in Tracy Arm following the landslide-triggered tsunami. The reason for this is that ~300 meters of the north side of South Sawyer Glacier broke off and disintegrated into many many smaller icebergs as seen in @planet.com imagery 🧪⚒️

It is likely that a large, tsunamigenic landslide occurred in Tracy Arm inlet, in Alaska on 10 August 2025 at 5:30 am. Seismic trace from the Alaska Earthquake Center, Satellite image (dated 7 August 2025 - before the landslide) from @planet.com. eos.org/thelandslide...

First cloud-free optical satellite imagery from @planet.com show the destruction of Dharali village in Uttarkashi, Uttarakhand, India. Unfortunately the source area in the mountains is still obscured by cloud and so the ultimate cause is still speculative. 🧪⚒️

Dramatic images reaching us from Dharali village in Uttarakhand in the last hours. The consequences of this debris flow look horrendous, and our thoughts are with the local community and emergency response. More details will surely emerge soon. #cloudburst #hazard #debrisflow #remergency #risk

🚨 #IMC2025 Update! 🚨 The abstract submission for the special session on the Nesthorn-Birchgletscher #hazard cascade is now open (and will be open until August 22). Details on 💻 submission and (late) registration can be found here: imc2025.info/imc25/specia... #Innsbruck #Blatten #STEM #risk #science

The first global comparison of glacier mass change reveals a global loss of 273 billion tonnes per year, an amount equivalent to what the entire human population on Earth drinks in 30 years. 🧪

⚠️Job Alert!⚠️ Are you a into remote sensing? Do you want to advance the fusion of remote sensing 🛰️ and environmental data 💻? Check out this cool job at @ethz.ch's new 🇨🇭Swiss GeoLab! jobs.ethz.ch/job/view/JOP... #job #stem #science #data #hazards #climatechange #innovation @eth-eaps.bsky.social

Thinking about Early Warning Systems for mountain hazards? Here's an event that you might be interested in: Organized by colleagues in 🇦🇹 Austria it will bring together various experts and draws on the recent 🏔️ rock avalanche and 🧊 glacier collapse in 🇨🇭 Switzerland. www.stimson.org/event/early-...

the new Landslide Mapping Guidelines from Engineers and Geoscientists British Columbia are now available. A useful document for geohazard practitioners in British Columbia (and beyond). tools.egbc.ca/Registrants/...

👋 Hi, we are HYCLIMM – Hydrology & Climate Impacts in Mountain Regions – a research group at @slfdavos.bsky.social & @ethz.ch . We study #water & #climateextremes in mountains under #globalchange! ↪️ We’ll share updates on our work & team led by @manuelaibrunner.bsky.social

An excellent new paper (Walden et al. 2025) examines the occurrence of accelerated movement in rock slope landslides in Alaska as adjacent glaciers melt. Some of the slopes, such as the one in the images below (at Barry Glacier), showed periods of pronounced acceleration. eos.org/thelandslide...

🚨Session alert🚨 We will host a special session to discuss the 🏔️ Nesthorn-Birchglacier hazard cascade at IMC Innsbruck. Abstract submissions will open in July, registration will still be possible. imc2025.info/imc25/specia... Join us to discuss this extraordinary event! #hazards #glaciers #cascade

Alaskan rivers are rising and warming. In a new paper, researchers predict hydrologic and ecological shifts 50 years into the future. Dylan Blaskey led the study for INSTAAR's Arctic Rivers Project. Keith Musselman and Michael Gooseff are coauthors. buff.ly/tvDRzL6

As the dust begins to settle over #Blatten, many from the #gaphaz community are gathering to try to better understand this event. Some of this preliminary information 📊 is now available in an updated #factsheet. Take a look! There is interesting science ahead, but our ❤️ remain with those affected!

Wie genau kam es zum Gletscherabbruch, der zur bedauerlichen Verschüttung des Walliser Dorfes Blatten führte? Dieser Frage sind ETH-Forschende nachgegangen: ethz.ch/de/news-und-... #Blatten #Gletscher #Bergsturz #Birchgletscher

Every +0.1°C of global warming leads to ~2% more glacier ice loss. Sticking to the #ParisAgreement (+1.5°C) would preserve over half the ice compared to current policies (+2.7°C). This is the result of a new study based, led by Harry Zekollari, Lilian Schuster & several co-authors from our group.

Here is a factsheet on what is currently known about Birchgletscher, the Swiss glacier that catastrophically collapsed on 28 May 2025, following heavy debris loading from Kleines Nesthorn. Our thoughts are with all those most deeply affected. polybox.ethz.ch/index.php/s/...

The major glacier collapse or rock-ice avalanche that was feared over the past few day occurred this afternoon in Lötschental, Switzerland. Our thoughts are with the local population and emergency responders as the we gain clarity on the dimensions of this event. #Lötschental #hazards #risk

Various colleagues with #gaphaz expertise have been providing background information 📰🎤 📹 on the high-alpine 🏔️rock avalanche threatening Blatten, Switzerland. Take a look at the thread below! 🔬🔭🧪 #science #hazards #risk #geology #communication #outreach

I have posted an update to the Eos Landslide Blog on the failure on Kleiner Nesthorn that is threatening #Blatten in #Switzerland. Continuous rockfalls are occurring and the main mass continues to deform. The Birch Glacier immediately below the mass is also moving rapidly. eos.org/thelandslide...

🚨Acute rock avalanche danger above Blatten, Switzerland 🚨 Emergency management has ordered the evacuation of the village of Blatten because of a large destabilized rock mass on Klein Nesthorn 🏔️ The mass could impact Birchglacier, possibly amplifying mass and runout. www.bluewin.ch/en/news/swit...

✨May Publication Highlight ✨ Check out this neat publication from C. Fey, V. Wichmann, & C. Zangerl on the influence of permafrost degradation and glacier retreat on rockfall! 🏔️ onlinelibrary.wiley.com/doi/10.1002/... @bokuvienna.bsky.social #gaphaz #mountains #science #risk #hazards #climatechange

The story on Kötlujökull (Iceland) is now improved and updated. Quite the glacier, as it covers Katla volcano and their interplay causes the world's most powerful outburst floods or Katlahlaups, which leave icebergs up to 60 m high stranded on the outwash plain. See glacierchange.com/en/kotlujoku...

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Are you headed to #EGU25? Still uncertain about what sessions and events to attend? Needless to say, the possibilities are endless, but here is a short, curated list of mountain-hazard related options. We look forward to connecting with you on site! Enjoy! #science #vienna #hazards #mountains

So here's a great job for a geologist - Landslide Hazards Program Manager for the Alaska Division of Geological & Geophysical Surveys:- www.governmentjobs.com/careers/alas... Alaska has an incredible range of landslides, with notable changes in behaviour driven by anthropogenic climate change.

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