A window into Earth’s interior

A window into Earth’s interior

Deep under the Swiss Alps, the BedrettoLab opens a rare window into the Earth. Its extraordinary overburden of up to 1.5 km of rock and high-tech sensor network capture the underground like no other place. This unique setup powers cutting-edge research on energy topics, earthquakes, and fundamental research.

2026-09-16

Upcoming FEAR-3 experiment at the BedrettoLab

Picture of the FEAR-3 experiment in the Bedretto tunnel

The BedrettoLab is preparing the next phase of the Fault Activation and Earthquake Rupture (FEAR) project. Building on the results of the FEAR-2 experiment conducted in April 2026, researchers will carry out a new field experiment starting on September 21.

Read more

2026-08-19

Hydro-mechanical test in the Geothermal Testbed

Picture for Hydro-mechanical test in the Geothermal Testbed

Today, scientists at the BedrettoLab will conduct a hydro-mechanical test in the Geothermal Testbed. The experiment is a standard, well-established procedure that will provide a conclusive analysis of the interval, the section of the borehole that was investigated in previous tests. Further tests will be conducted in a different test interval.

Read more

Virtual tour: Click on play and get a deep insight into the BedrettoLab.

Public Tours at the BedrettoLab

In cooperation with the Museum Sasso San Gottardo, ETH Zurich offers public tours of the BedrettoLab.

To book a tour, submit your request via the following link: https://www.sasso-sangottardo.ch/gruppen-bedrettolab