A catastrophic glacier collapse has devastated the village of Blatten in Valais canton, with one person missing and extensive damage to infrastructure. Emergency services continue monitoring flood risks.

"It was one of the largest mass movements ever recorded"
In a devastating natural disaster, a massive section of the Birch Glacier collapsed on Wednesday afternoon, unleashing an avalanche of ice, mud, and debris that buried approximately 90% of the Swiss village of Blatten in Valais canton. The catastrophic event, occurring at 3:30pm local time, triggered seismic activity measuring 3.1 on the Richter scale, marking it as one of the largest mass movements ever recorded in Switzerland according to ETH Zurich experts.
Swiss authorities launched an immediate emergency response, with search and rescue operations focusing on locating a missing 64-year-old local resident. Prior to the main collapse, approximately 300 residents had been evacuated following early warning signs. The Swiss army has been mobilized to assist with emergency operations, while civil protection teams are deployed throughout the affected area. Emergency services continue to monitor the situation closely, particularly the flood risks posed by the Lonza river.
The impact of the glacier collapse has been catastrophic, with debris deposits stretching over two kilometers and reaching several dozen meters in thickness. The avalanche of material has created a natural dam across the Lonza river, leading to the formation of a growing lake that threatens additional flooding. Infrastructure damage is extensive, with numerous buildings either destroyed or severely damaged by the initial impact and subsequent flooding.
The situation remains highly unstable, with authorities warning of potential further collapses and mudslides. The newly formed lake behind the debris dam poses a significant threat to downstream communities, particularly Wiler and Kippel, where precautionary evacuations have been implemented. Experts from the Swiss Seismological Service continue to monitor the area for any signs of additional movement, while emergency services maintain high alert status.