Natural hazards

When the Brienz rockslide rumbled down into the valley in 2023, a research team from WSL and ETH Zurich successfully measured the tremors using a new method. It uses existing internet fiber optic cables and is therefore very promising for the large-scale monitoring of earthquakes, avalanches, and rock movements.

EPFL researchers have for the first time recorded X-rays being produced at the beginning of upward positive lightning flashes; an observation that gives important insight into the origins of this rare – and particularly dangerous – form of lightning.

A European consortium involving EPFL has managed to guide lightning using a high-power laser installed at the top of Mount Säntis in Switzerland.