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Posts by GAPHAZ - Glacier and Permafrost Hazards in Mountains

The study presents an inventory of hanging glaciers in the Alaknanda basin (Garhwal Himalaya) and the authors performed runout simulations for select glaciers that could impact infrastructure. Their findings highlight the need for targeted monitoring and risk-informed planning.

5 hours ago 1 0 0 0
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✨New Publication Highlight✨
Check out the recent work by Nandu Krishnan and colleagues, including @glacier-hazards.bsky.social:📄 "Basin-scale inventory and exposure assessment of hanging glaciers, Central Himalaya."
www.nature.com/articles/s44...
#risk #hazards #glaciers #ClimateChange #Himalaya

5 hours ago 1 0 1 0
The number of fatal landslides each year since 1968 in Nepal. The grey line is a four year retrospective running mean. Author's own dataset.

The number of fatal landslides each year since 1968 in Nepal. The grey line is a four year retrospective running mean. Author's own dataset.

Since 1968 there have been over 1,400 fatal landslides in Nepal, killing over 6,000 people. The data shows that the impacts are increasing with time.
eos.org/thelandslide...

1 month ago 9 2 0 0
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Registration is open for the 3rd Asian Conference on #Permafrost (ACOP) 2026 in Ulaanbaatar, #Mongolia, from June 28 to July 2, 2026! The conference boasts a rich program, including several sessions on #hazards and #risks of interest to the #gaphaz community!
event.fourwaves.com/acop2026/pages

1 month ago 0 1 0 0

Have you submitted your #EGU26 abstract?! We‘ve put together a little list (non-exhaustive) of sessions that fit gaphaz topics well. See you in #Vienna
#hazards #glaciers #permafrost #mountains #risk #science

3 months ago 0 0 0 0
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Mapping climate-change-related processes affecting most frequented routes by French mountain guides Abstract. This paper examines the impact of climate change on alpinism in the western European Alps, focusing particularly on the routes most frequently used by French mountain guides. The aim is to i...

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/...

4 months ago 20 8 1 0
4 months ago 37 21 0 0
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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

5 months ago 4 0 0 0
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Melting Glaciers in the Himalayas Feed Lakes That Threaten Towns Below (Gift Article) Melting ice from the Himalayas is creating thousands of unstable lakes, a growing menace to towns and cities below.

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/...

5 months ago 29 19 1 1
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📘 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...

5 months ago 5 2 0 0
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NASA-ISRO Satellite Sends First Radar Images of Earth’s Surface Preliminary images from the most powerful Earth radar satellite ever launched offer a tantalizing glimpse of the science the mission will be able to deliver.

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...

6 months ago 107 31 2 2
Seismic waveforms and power spectral density plots showing the signal of a landslide lake outburst flood.

Seismic waveforms and power spectral density plots showing the signal of a landslide lake outburst flood.

Planet satellite image from August 2025 of a large landslide blocking a river and creating a lake.

Planet satellite image from August 2025 of a large landslide blocking a river and creating a lake.

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.

6 months ago 24 16 1 0
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Unwetter 2024: viele Todesopfer und hohe Kosten Dreizehn Todesfälle und 905 Mio. Franken Schäden: Das ist die Bilanz der Unwetter 2024, wie die jährliche Auswertung durch die WSL ergab.

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

6 months ago 9 5 1 1
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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

7 months ago 2 1 0 0
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#IMC25 - FS 3.109: The Changing Face of Mountain Regions: Climate Change Impacts on Alpine Mass Movements

#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...

7 months ago 1 0 0 0
Detail | Alaska Earthquake Center

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

7 months ago 4 2 0 0
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Systematic attribution of heatwaves to the emissions of carbon majors - Nature Climate change made 213 historical heatwaves reported over 2000–2023 more likely and more intense, to which each of the 180 carbon majors (fossil fuel and cement producers) substantially contributed.

🚨 Important paper in Nature: "Systematic attribution of heatwaves to the emissions of carbon majors".

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

7 months ago 190 92 7 17

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!

7 months ago 3 0 0 0
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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 😭

7 months ago 44 13 4 0
Rapid analysis of the GLOF in Gupis, Gilgit-Baltistan – Séries Temporelles The

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...

7 months ago 3 1 0 0
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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

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

8 months ago 3 0 0 0

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

8 months ago 0 0 1 0
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Mendenhall River at record high as Juneau residents brace for crest of glacial flooding Officials say new barriers are holding, making for far less damage than during last year’s destructive glacial outburst from Suicide Basin.

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.

8 months ago 44 12 1 1

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 🧪⚒️

8 months ago 78 33 2 0

Congrats Caroline! Good luck in your new role!

8 months ago 2 0 0 0
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The seismic signal from Tracy Arm in Alaska, which was probably generated by a large landslide. Data released by the Alaska Earthquake Center.

The seismic signal from Tracy Arm in Alaska, which was probably generated by a large landslide. Data released by the Alaska Earthquake Center.

Satellite image of Tracy Arm inlet. Image copyright Planet Labs, used with permission. Image dated 7 August 2025.

Satellite image of Tracy Arm inlet. Image copyright Planet Labs, used with permission. Image dated 7 August 2025.

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...

8 months ago 55 26 1 2

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. 🧪⚒️

8 months ago 24 11 1 0

Wow! That is really impressive indeed! 😱Hopefully nobody was in harm’s way?

8 months ago 0 0 0 0

Congrats!!!

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