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Alps

Webcam image of the deforming slope at Blatten in Switzerland.
Posted inThe Landslide Blog

The incipient major rock slope failure at Blatten in Switzerland

by Dave Petley 20 May 202520 May 2025

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. In Switzerland, a dramatic rock slope failure is developing above Blatten [46.4128, 7.7987], a village located in Vallais Canton. Blue News is providing regular updates on a dedicated website. The drama started […]

More recent movement of the slope at Brienz in Switzerland.
Posted inThe Landslide Blog

A new landslide-driven evacuation of Brienz in Switzerland

by Dave Petley 12 November 202412 November 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Back in the summer of 2023, Brienz in Switzerland was evacuated due to the threat of a large rockslope failure that threatened to bury the village. The so-called Brienz-Brinzauls landslide finally failed […]

A landslide of gray rock spilling over onto a road, seen from above
Posted inResearch Spotlights

Watching and Listening for Signs of Slope Failure

by Rebecca Owen 17 July 202417 July 2024

Ten years of data preceding a rockfall in the French Alps suggest the need for more comprehensive monitoring systems.

Plot of the fundamental resonance frequency of the slope (y-axis) with the measured velocity of the La Praz landslide (x-axis) over time (the colour of the dots), from Bottelin and Baillet (2024).
Posted inThe Landslide Blog

The evolution of damage in large rock slope failures – the La Praz landslide

by Dave Petley 10 July 202410 July 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Large rock slope failures are a very substantial hazard in areas with steep topography, as was recently shown by the catastrophic 24 May 2024 landslide at Kaokalam in Enga province, Papua New […]

Annotated image showing the speculative main aspects of the 21 June 2024 Sorte debris flow in Switzerland. Base image from Swisstopo.
Posted inThe Landslide Blog

The possible causes of the deadly 21 June 2024 Sorte debris flow in Switzerland

by Dave Petley 26 June 202426 June 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. The Federal Office of Topography in Switzerland has collected and published online aerial imagery of the site of the deadly 21 June 2024 debris flow in Switzerland, which killed three people. The […]

A webcam image of the aftermath of the Piz Scerscen rock avalanche, captured at 16:44 from the Corvatsch skiing station.
Posted inThe Landslide Blog

Webcam images of the 14 April 2024 Piz Scerscen rock avalanche

by Dave Petley 18 April 202418 April 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Silvan Leinss from Gamma Remote Sensing has very kindly captured and downloaded webcam images from the Corvatsch skiing station on the day of the Piz Scerscen rock avalanche. The camera was pointed […]

The toe of the 14 April 2024 Piz Scerscen rock avalanche in Switzerland.
Posted inThe Landslide Blog

Images of the 14 April 2024 Piz Scerscen rock avalanche in Switzerland

by Dave Petley 16 April 202416 April 2024

Piz Scerscen The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Various images have now emerged of the 5 km long, 14 April 2024 Piz Scerscen rock avalanche in Switzerland. With thanks to Amt für Naturgefahren, Kanton Graubünden, Ch, these three […]

Posted inThe Landslide Blog

A large rock avalanche on Piz Scerscen in Switzerland

by Dave Petley 15 April 202415 April 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Early in the morning of 14 April 2024, a large rock avalanche occurred on the flanks of Piz Scerscen in the Swiss Alps, close to the border with Italy. Fortunately, the landslide […]

The Swiss Alps, in which mountaineers face rockfall hazards.
Posted inThe Landslide Blog

Rockfalls as a hazard to mountaineers in high mountain areas

by Dave Petley 5 March 20245 March 2024

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Rockfalls are a key risk to climbers in high mountains, potentially causing injury or even loss of life. We regularly record such events in our fatal landslide research, although I have always […]

Photo of a snow covered mountain
Posted inEditors' Highlights

Illuminating the Complex Structural Fabric Beneath the European Alps

by Fiona Darbyshire 5 October 20238 July 2024

A new study investigates the dynamics of the complex continental collision that formed the European Alps and reveals how structural alignments change with depth.

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