Lake Geneva and Lake Annecy all face a small but real tsunami risk — and human activity is making it worse
That is the finding of researchers from Savoie Mont Blanc University.
Over 2,000 years of deforestation, farming and grazing in the Alps have increased sediment flows into the lakes, destabilising delta slopes that could collapse during an earthquake.
The study highlights how centuries of land use shape modern geological hazards.
Lakeside communities around Lake Geneva are among those most exposed.
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