(From L) ETH Zurich Master students Alessandro Profeta, Alba Zappone and ETH Zurich doctoral students Fiona Dresler-Dorn and Lu Tian examine the cracks in the BedrettoLab tunnel, a unique underground research facility operated by the Federal Institute of Technology Zurich (ETH Zurich) located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

ETH Zurich professor of geology Domenico Giardini poses next to measuring instruments inside the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

ETH Zurich professor of geology Domenico Giardini poses next to measuring instruments inside the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

ETH Zurich professor of geology Domenico Giardini poses next to measuring instruments inside the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

ETH Zurich professor of geology Domenico Giardini poses inside the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

Members of staff drive a scooter inside in the BedrettoLab tunnel, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto, on April 29, 2026. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

This photograph taken on April 29, 2026 shows a aerial view of the entrance of the tunnel to the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich (ETH Zurich) located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)

This photograph taken on April 29, 2026 shows boreholes piled up outside the tunnel entrance of the BedrettoLab, a unique underground research facility operated by the Federal Institute of Technology Zurich, located 1500m beneath the Swiss Alps within a 5.2 km tunnel near Bedretto. Researchers have made the ground shake triggering thousands of tiny earthquakes in a monitored setting, as they seek to discover seismicity insights that can reduce risks. (Photo by Ennio LEANZA / AFP via Getty Images)