Latest news with #glaciercollapse
Daily Mail
16 hours ago
- Climate
- Daily Mail
Satellite images show Swiss village wiped out by glacier collapse
New terrifying satellite images have revealed how a tiny Swiss village was completely wiped out by a massive glacier collapse. The remote Alpine village of Blatten was flattened after an avalanche of rock, mud and ice was sent crashing down into the valley. Once home to around 300 people, it now lies buried beneath a vast expanse of debris after the Birch Glacier broke off on Wednesday afternoon. Authorities say 90 per cent of the village has been destroyed. New satellite pictures reveal the true scale of the disaster, showing where homes, farmland and roads once stood, now completely smothered by mud and rubble. The river Lonza, which runs through the valley, has been blocked by the landslide, which had raised fears of further flooding. But as reconnaissance flights and inspections continued, authorities said water from the newly formed lake, which has been slowly submerging the remaining houses in the obliterated village of Blatten, was beginning to find its way over, through and around the blockage. 'This development is positive, but we remain cautious,' said Stephane Ganzer, head of the regional security department. 'The risk remains, even if it is diminishing,' he told a press conference, adding that 'no evacuations are planned' in the villages downstream in the Lötschental valley, one of the most picturesque regions in southern Switzerland. The outflow "makes us optimistic and suggests that the water is finding a good path", explained Christian Studer of the Wallis canton's Natural Hazards Service. However, work to pump water from the lake has still not begun as the ground remains too unstable, particularly on the mountainside. One 64-year-old man is still missing. He was believed to be in the area at the time. Switzerland's president has pledged support for those forced to flee the Alpine village of Blatten, telling evacuees they are 'not alone' after a devastating glacier-triggered landslide wiped out homes and businesses. Karin Keller-Sutter made the comments on Friday after surveying the destruction by helicopter. She said the government was now working to calculate ways to help those affected by the disaster. 'The force with which the mountain here wiped out an entire village is indescribable,' said Keller-Sutter. 'I'd like to tell you all that you're not alone. The whole of Switzerland is with you — and not just (people) in Switzerland.' Officials have limited access to the area and warned that huge deposits of debris, stacked tens of metres high across a 2-kilometre stretch of the valley, have blocked the Lonza River and formed a new lake. The future course of the water remains uncertain. 'Unfortunately, the danger has not yet been averted,' Keller-Sutter added. Separate drone footage shown by national broadcaster SRF showed a vast plain of mud and soil completely covering part of the village and the river running through it. At around 3:30pm local time, a huge chunk of the Birch glacier broke off, according to emergency services in the Wallis region. Local police said the missing 64-year-old man was a local resident who was in the area at the time of the incident. A search and rescue operation was launched, with three specialists airlifted to the scene, while a drone with a thermal imaging camera was also used. 'Despite significant efforts, the man has still not been found,' police said. The village, including residents and a herd of 52 cows, had mostly been evacuated this week amid fears the 52mn cubic ft glacier was days away from collapse. 'We've lost our village,' Matthias Bellwald, the mayor of Blatten told a press conference after the slide. 'The village is under rubble. We will rebuild.' The glacier collapse had been expected for several days, and there have been no reports of injuries. 'An unbelievable amount of material thundered down into the valley,' said Matthias Ebener, a spokesperson for local authorities in the southwestern canton of Valais. Stephane Ganzer, an official in the canton of Valais where Blatten is located, told Swiss media that about 90% of the village was covered by the landslide. 'it's a major catastrophe that has happened here in Blatten,' he said, adding: 'There's a risk that the situation could get worse,' alluding to the blocked river. He said the army had been mobilised after earlier indications that the movement of the glacier was accelerating. Experts consulted by Reuters said it was difficult to assess the extent to which rising temperatures spurred by climate change had triggered the collapse because of the role the crumbling mountainside had played.
Yahoo
2 days ago
- Politics
- Yahoo
What Causes Glaciers to Collapse like the Event That Buried a Swiss Village?
An unstable glacier in the Swiss Alps collapsed this week, sending a deluge of rock, ice and mud through the valley below and burying the village of Blatten almost entirely. Scientists had warned about the possibility of a dangerous event related to the glacier, and village residents had been evacuated days earlier—but the glacier's near-total breakup came as a surprise. One person is reported missing. Government officials initially estimated the debris deposit to be several dozen meters thick and approximately two kilometers long. Making matters worse, the collapse of the glacier, called the Birch Glacier, blocked the flow of the Lonza River, which runs through the valley. As a result, a newly created lake upstream from the debris field flooded an area that has now overflowed into the deposit zone, which could cause a debris flow downstream. As of Friday afternoon local time, officials have reported that the water flow is approaching the top of the scree cone, which is the accumulation of loose, rocky debris. The glacier's collapse and the subsequent landslide—which was so intense that it corresponded to a magnitude 3.1 earthquake captured by the Swiss Seismological Service—likely arose from a series of rockfalls that occurred above the glacier over the past couple of weeks. The rocks, dislodged because of high-altitude snowmelt, exerted significant pressure on the relatively small glacier, according to officials. Experts are looking into longer-term factors that may have weakened the glacier's stability even before those rockfalls. Christophe Lambiel, a glaciologist who also specializes in high-mountain geology at the University of Lausanne in Switzerland, said on RTS Swiss Television that the rockfalls were linked to climate change. 'The increase in the falling rocks is due to the melting permafrost, which increases instability,' Lambiel said, as reported on NPR. New research published on Thursday in Science finds that, under current climate policies, more than three quarters of the world's glacial mass could disappear by the end of this century. In this scenario, almost all small and relatively low-elevation glaciers, like the one in Switzerland, would be wiped out. In a 2024 article for Scientific American, journalist Alec Luhn explained that 'the deterioration of ice and snow is triggering feedback loops that will heat the world even further. Permafrost, the frozen ground that holds twice as much carbon as is currently found in the atmosphere, is thawing and releasing these stores.' Thawing permafrost is not just dangerous because it creates instability, as in the case of Birch Glacier. As Luhn wrote, 'Research has revealed that the permafrost zone is now releasing more carbon than it absorbs, heating the planet further.' [Sign up for Today in Science, a free daily newsletter] It's clear that the weakening of Switzerland's Birch Glacier was at least partially caused by rockfall. There are other ways in which changes to glaciers are causing risk—and occasional devastation—to people, communities and infrastructure. As a 2023 E&E News article explained, 'At least 15 million people worldwide live in the flood paths of dangerous glacial lakes that can abruptly burst their banks and rush down mountainsides.' These so-called glacial lake outburst floods can be fatal and cause catastrophic damage. 'The deterioration of the planet's snow and ice regions,' wrote Luhn in his 2024 article, 'is costing the world billions of dollars in damages,' according to a 2024 State of the Cryosphere report Giant plastic blankets, gravity snow guns and painted rocks are all potential strategies to slow ice melt in the world's mountain regions. The sound that glaciers make when water is coursing through their icy cracks can be used to predict glacial lake outburst floods—and thus to save lives. There's also a growing sense of reckoning with the fate of the world's glaciers. An essay about the Global Glacier Casualty List, which documents glaciers that have melted or are critically endangered, was also released on Thursday in Science. In it, Rice University anthropologists Cymene Howe and Dominic Boyer write, 'The world's first funeral for a glacier was held in Iceland in 2019 for a little glacier called 'Ok….' Since then, memorials for disappeared glaciers have increased across the world, illustrating the integral connection between loss in the natural world and human rituals of remembrance.'
Yahoo
2 days ago
- Science
- Yahoo
Alpine expert says climate change making mountains more dangerous
Climate change is making mountain collapses, such as the recent glacier collapse in Switzerland, as well as other hazards like rockfalls and landslides, more frequent, according to a climate expert at the German Alpine Club "The increase in these alpine hazards is a clear consequence of human-induced climate change," Tobias Hipp said. And that is making them more dangerous. "There will always be certain risks in the mountains, but their likelihood is increasing due to climate change," he said. "The Alps are out of balance due to warming and are becoming unstable. We must assume that these events will continue to increase." Hipp explained that it is important to distinguish between mountain collapses and rockfalls. "In the case of a mountain collapse – as seen recently in Switzerland – massive amounts of rock are involved. Often, there are warning signs beforehand, such as smaller break-offs, allowing for large-scale monitoring and early warnings. However, this is not always the case, as with the mountain collapse at Piz Cengalo in 2017, which resulted in several fatalities." For mountaineers, however, rockfalls and smaller-scale landslides are generally more relevant. "These are classic alpine hazards that occur much more frequently and across wider areas." Loss of ice and glaciers Both mountain collapses and rockfalls are triggered by similar processes, which are exacerbated by climate change, Hipp said. "On the one hand, the mountains are warming, which means the permafrost inside them no longer holds them together as effectively. On the other hand, the retreat of glaciers plays a role, as glaciers no longer act as supports for adjacent rock walls. Additionally, unstable areas beneath the glaciers are exposed, which can lead to rockfalls or landslides." Increasing extreme weather events, such as heavy rainfall or heatwaves, often act as triggers. Ultimately, multiple factors or processes usually interact. The level of danger depends heavily on location. "The average hiker who is not in high alpine regions has less to worry about," said Hipp. "But in areas between 2,000 and 2,500 metres, the risk increases, and in high alpine regions, we see a clear link between the rise in hazards and human-induced climate change." Importance of planning Good route planning, with attention to weather forecasts, is always essential, Hipp explained. However, due to rapid changes, it is becoming even more important. "The Alps will remain an attractive destination for mountaineering, just not in the same way as we have inherited them."
Daily Mail
3 days ago
- Climate
- Daily Mail
Terrifying satellite images show how tiny Swiss village of Blatten was completely wiped out by massive glacier collapse
New terrifying satellite images have revealed how a tiny Swiss village was completely wiped out by a massive glacier collapse. The remote Alpine village of Blatten was flattened after an avalanche of rock, mud and ice was sent crashing down into the valley. Once home to around 300 people, it now lies buried beneath a vast expanse of debris after the Birch Glacier broke off on Wednesday afternoon. Authorities say 90 per cent of the village has been destroyed. New satellite pictures reveal the true scale of the disaster, showing where homes, farmland and roads once stood, now completely smothered by mud and rubble. The river Lonza, which runs through the valley, has been blocked by the landslide, which had raised fears of further flooding. But as reconnaissance flights and inspections continued, authorities said water from the newly formed lake, which has been slowly submerging the remaining houses in the obliterated village of Blatten, was beginning to find its way over, through and around the blockage. 'This development is positive, but we remain cautious,' said Stephane Ganzer, head of the regional security department. 'The risk remains, even if it is diminishing,' he told a press conference, adding that 'no evacuations are planned' in the villages downstream in the Lötschental valley, one of the most picturesque regions in southern Switzerland. The outflow "makes us optimistic and suggests that the water is finding a good path", explained Christian Studer of the Wallis canton's Natural Hazards Service. However, work to pump water from the lake has still not begun as the ground remains too unstable, particularly on the mountainside. One 64-year-old man is still missing. He was believed to be in the area at the time. Switzerland's president has pledged support for those forced to flee the Alpine village of Blatten, telling evacuees they are 'not alone' after a devastating glacier-triggered landslide wiped out homes and businesses. Karin Keller-Sutter made the comments on Friday after surveying the destruction by helicopter. She said the government was now working to calculate ways to help those affected by the disaster. 'The force with which the mountain here wiped out an entire village is indescribable,' said Keller-Sutter. 'I'd like to tell you all that you're not alone. The whole of Switzerland is with you — and not just (people) in Switzerland.' Officials have limited access to the area and warned that huge deposits of debris, stacked tens of metres high across a 2-kilometre stretch of the valley, have blocked the Lonza River and formed a new lake. New satellite pictures reveal the true scale of the disaster, showing where homes, farmland and roads once stood, now completely smothered by mud and rubble The future course of the water remains uncertain. 'Unfortunately, the danger has not yet been averted,' Keller-Sutter added. Separate drone footage shown by national broadcaster SRF showed a vast plain of mud and soil completely covering part of the village and the river running through it. At around 3:30pm local time, a huge chunk of the Birch glacier broke off, according to emergency services in the Wallis region. Local police said the missing 64-year-old man was a local resident who was in the area at the time of the incident. A search and rescue operation was launched, with three specialists airlifted to the scene, while a drone with a thermal imaging camera was also used. 'Despite significant efforts, the man has still not been found,' police said. The village, including residents and a herd of 52 cows, had mostly been evacuated this week amid fears the 52mn cubic ft glacier was days away from collapse. 'We've lost our village,' Matthias Bellwald, the mayor of Blatten told a press conference after the slide. 'The village is under rubble. We will rebuild.' The glacier collapse had been expected for several days, and there have been no reports of injuries. 'An unbelievable amount of material thundered down into the valley,' said Matthias Ebener, a spokesperson for local authorities in the southwestern canton of Valais. Stephane Ganzer, an official in the canton of Valais where Blatten is located, told Swiss media that about 90% of the village was covered by the landslide. 'it's a major catastrophe that has happened here in Blatten,' he said, adding: 'There's a risk that the situation could get worse,' alluding to the blocked river. He said the army had been mobilised after earlier indications that the movement of the glacier was accelerating. Experts consulted by Reuters said it was difficult to assess the extent to which rising temperatures spurred by climate change had triggered the collapse because of the role the crumbling mountainside had played. Christian Huggel, a professor of environment and climate at the University of Zurich, said while various factors were at play in Blatten, it was known that local permafrost had been affected by warmer temperatures in the Alps. The loss of permafrost can negatively affect the stability of the mountain rock which is why climate change had likely played a part in the deluge, Huggel said. The extent of the damage to Blatten had no precedent in the Swiss Alps in the current or previous century, he added.
News.com.au
3 days ago
- Climate
- News.com.au
Footage shows landslide erase entire village
A catastrophic glacier collapse in the Swiss Alps has devastated the tiny village of Blatten, burying it under millions of cubic metres of ice, rock and mud. Videos of the collapsing glacier went viral as the natural disaster unfolded on Wednesday, showing homes and buildings being submerged followed by a haunting rumbling sound. A huge cloud was also created that covered parts of the mountain as rock and debris thundered down the valley. Regional police said a 64-year-old man was reported missing, and a search and rescue operation was underway. The small village was evacuated earlier in the week, with about 300 people and all livestock, fleeing for safety. Now, shocking before-and-after satellite imagery released by Maxar Technologies has revealed the true extent of the destruction as the once-idyllic town is erased. The first two images, both taken in November 2024, show the tiny town and its homes before the collapse. The remaining images show Blatten after the collapse on Thursday, May 29, with the town seen covered in ice and debris. 'What I can tell you at the moment is that about 90 per cent of the village is covered or destroyed,' Stephane Ganzer, the head of security in the southern Valais region, told local TV station Canal9. The regional government said a large chunk of the Birch Glacier above the village broke off, causing the landslide. It has also buried the nearby Lonza River bed. 'What happened is the unthinkable, the catastrophic worst-case scenario,' Christophe Lambiel, a specialist in high-mountain geology and glaciers at the University of Lausanne, told RTS Swiss Television. Lambiel said scientists knew something was coming, thanks to increasingly frequent rockfalls from the mountain face onto the glacier. But he said the glacier's total collapse was not predicted. Professor of environment and climate at the University of Zurich, Christian Huggel, told Reuters that climate change had likely played a part in the deluge. 'While various factors were at play in Blatten, it was known that local permafrost had been affected by warmer temperatures in the Alps. The loss of permafrost can negatively affect the stability of the mountain rock,' he said. In an emotional press conference Matthias Bellwald, the mayor of Blatten, offered words of encouragement to his devastated constituents. 'We lost our village but not our lives,' he said. 'The village is under the gravel but we're going to get up. We are going to be in solidarity and rebuild. Everything is possible.'
