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Kandersteg's Alpine Disaster Preparedness is a focus after a Swiss village loses its life in landslide

After a massive rockslide and glacier collapse buried an adjacent village in Kandersteg last month, officials are closely monitoring the mountain peak towering above the resort's picturesque homes and hotels.

In late May, the destruction of Blatten in the Loetschental Valley, which had around 300 residents, brought into sharp focus the concern over the melting of permafrost in Alpine mountain ranges as temperatures continue to rise.

Blatten evacuated its village before a piece of glacier broke, which would have triggered a cascade of dangerous ice, rock and earth towards the village. This is similar to what Kandersteg had been preparing for.

Rene Maeder, the mayor of Kandersteg, said: "Of Course Blatten upset us." It really makes you feel uncomfortable. "You're speechless as you look at those images of violence in nature."

Maeder was still confident that Kandersteg’s dams, daily monitoring, and researchers who checked the mountain using GPS, radar, and drones, would be able to prevent a disaster.

Since 2018, there has been an increased risk of rockslides at Kandersteg. This is because paragliders noticed that Spitzer Stein - a distinctive rocky summit crowning a lush Alpine scene - was losing height.

This discovery has made the village a test ground for monitoring what some experts believe will be the impact of climate changes on the Alps. Thawing permafrost in the Alps has weakened long-frozen rock structures.

Mountainous areas are also at risk of earthquakes and geological instability.

PERMAFROST THAWING

Robert Kenner, at the Institute for Snow and Avalanche Research, Davos, stated that Kandersteg is a prime example for an area with structural instability. This could be further aggravated by a number of factors, such as permafrost.

He said that "what was quiet for 3,000 years has now been reactivated."

Maeder reported that sensors monitoring GPS positions on the Spitzer Stein revealed the mountain was shifting up to 70 centimetres a day (2.3 feet).

Residents should be notified at least 48 hours before a major rock movement.

Initial estimates by the Swiss Insurance Association showed that Blatten had been evacuated ten days prior to the deluge. This caused insurance losses in the amount of 320 million Swiss Francs (about $400 million).

About 48 Swiss Alpine peaks are at least 4,000 metres (13,123 ft) high, while several hundred others are at least 3000 meters.

Eight hikers were killed in 2017 by a landslide that occurred in the village of Bondo. This happened despite previous evacuations. Since then, monitoring has been intensified.

"TIP OF ICEBERG"

Kandersteg has spent more than 11 million Swiss Francs ($13.81million) on disaster preparation, including dams that slow down flooding, according to Mayor Maeder.

Residents who receive regular updates via email and WhatsApp on the mountain's movement have confidence in the technology.

Patrick Jost is the head of Kandersteg’s tourism office. His home is among those most vulnerable to a possible Spitzer Stein collapse.

The red zone is the most dangerous area of the village, and no new constructions are allowed.

Locals claim that despite the shock caused by Blatten, most aspects of life are unchanged. This includes vital tourism.

Maeder, who said: "Blatten, Kandersteg - that's only the tip of the Iceberg," noted, Kandersteg would perform its first full evacuation drill in the coming year.

Rudi Schorer, a 77-year old resident, knows that he will need to act quickly in an emergency and has set aside his identification details, extra clothes, and some belongings.

Schorer replied, "These are already in a suitcase back home." "That's exactly what we were told to do and what we did."

(source: Reuters)