2023-06-08 06:28:36
The Brienz landslide is now so fast that even geologists are impressed. The video shows how rapidly the rock masses are shifting and how much rock has already thundered down into the valley.
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- The “island” high above Brienz continues to pick up speed. Parts of the slope are now sliding down almost a meter a day.
- At an information event on Wednesday evening in Tiefencastel, geologist Stefan Schneider showed how this should be imagined with a time-lapse video.
- The movement on the slope reduces the risk of a catastrophic landslide, said the expert. But it is too early to give the all-clear.
These are shifts that even a geologist doesn’t see every day: parts of the “island” in the mountain slope above Brienz are now sliding down almost a meter a day. “You have to let that melt in your mouth,” said Stefan Schneider, head of the early warning system for the Brienz slide, on Wednesday evening at an information event in Tiefencastel.
That speed has increased exponentially since May, the geologist said. This can hardly be represented graphically with a rising curve.
Time-lapse recordings from the slope, which you can see in the clip above, are therefore much clearer.
Devastating landslide becomes less likely
During the course of the evening, the question then arose as to why no landslide had yet occurred – after all, this was the scenario that the geologists had envisaged in the event of an exponential acceleration.
In fact, the forecasts since May no longer correspond to the shifts observed on the slope, said Schneider. But that also has its good side: the probability of a single, massive landslide seems to be decreasing. Much more likely is a tough, slow flow of debris or many smaller rockfalls.
However, a landslide cannot be completely ruled out. As long as this is the case, the evacuation cannot be lifted. In the worst case, this impasse could last for months.
And in any case, a stream of debris has a devastating force and could reach the settlement area.
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