On May 28, following days of smaller rockfalls, millions of cubic meters of rock tumbled down from Kleiner Nesthorn mountain onto the Birch Glacier, sending a greater mix of rock, ice and mud crashing into the Loetschental valley. Much of the village of Blatten was obliterated, both by the landslide and the following accumulation of water from the blocked Lonza river.
Authorities had already evacuated Blatten and settlements farther up the valley in the week before, nevertheless one shepherd was killed. Today the mountainside remains unstable with daily rumblings of falling rock. Scientists hypothesise melting permafrost and glacial instability likely contributed to the severity of the landslide. | August 24, 2025 | 📷: seangallup |
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Frames 1-2-6. Aerial view of houses that lie submerged in water arriving from the Lonza river following the May landslide.
Frame 3. A pocket of gravel lies below collapsed Kleiner Nesthorn peak following the May landsl...