Una massa di roccia sul Pizzo Cengalo delle dimensioni tra i 200'000 e i 500'000 metri cubi di roccia ha accelerato notevolmente, nelle ultime ore, lo spostamento. Domani mattina, sabato, si prevede quindi una frana di grandi dimensioni. Tuttavia, comunica il comune di Bregaglia, non aumenta il pericolo per l’area di Bondo.
“L’evoluzione sul Pizzo Cengalo non è inaspettata in quanto la montagna è monitorata giorno e notte – si legge in una nota -. Il pericolo che una colata detritica raggiunga Bondo è lo stesso come nei giorni scorsi, il dispositivo di sicurezza è finalizzato ad una simile evoluzione”.
Se una colata di detriti dovesse cominciare a muoversi, l’impianto automatico e le diverse vedette darebbero immediatamente l’allarme (il tempo d’allarme con luce diurna è di 4 minuti, di notte 2 minuti). Se la situazione dovesse cambiare, le autorità lo comunicheranno tempestivamente.
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