Bedretto Lab: induced micro-earthquakes to study faults
Researchers from ETH Zurich induced micro-earthquakes in Val Bedretto to study fault behavior
Contesto
In brief - Researchers from the Swiss Federal Institute of Technology Zurich (ETHZ) induced micro-earthquakes in Val Bedretto - Goal: study the behavior of tectonic faults - Experiment lasted from April 22 to April 27, 2026 ## Key facts - What: Inducing micro-earthquakes to study faults - When: From April 22 to April 27, 2026 - Where: Val Bedretto, Ticino - Who: Team from the Swiss Federal Institute of Technology Zurich (ETHZ) and the University of Münster - Magnitude: Maximum magnitude reached: 0.14 In the heart of the Alps, under a kilometer and a half of rock, a team from the Swiss Federal Institute of Technology Zurich (ETHZ) and the University of Münster induced thousands of micro-earthquakes. The experiment began on April 22 and concluded last Saturday. The goal was to generate an earthquake of magnitude 1, but it stopped at 0.14. But what was the purpose? “The aim is to understand how faults move: when an earthquake starts or decides to become larger, when it decides to stop. What are the conditions that cause the Earth to move in a certain way,” Domenico Giardini, professor of seismology at ETHZ and director of the Bedretto Lab, responds to SEIDISERA. The underground laboratory was set up in the old bypass gallery used for the construction of the Furka railway tunnel, known as the Bedretto window. For four days, his team injected water under pressure into some tectonic faults of the Alps. “We,” Giardini specifies, “do not work on faults with known historical seismicity, because those faults should be left alone.” Therefore, faults at a depth of one and a half or two kilometers under the mountains are chosen. The process, explains the expert proposing an analogy, is like moving a bookshelf full of books at home. If it is too heavy, you can do two things: “remov...
Dettagli operativi
Procedures and Methodologies The experiment conducted at the Bedretto Lab followed a well-defined procedure. The team of researchers injected high-pressure water into selected tectonic faults at a depth of about one and a half to two kilometers beneath the mountains. This process was monitored through sensors that recorded the movement of the faults. The goal was to generate progressively stronger micro-earthquakes, up to a magnitude of one. However, the experiment stopped at a magnitude of 0.14, but the results obtained are still considered satisfactory. ### Future Scenarios The results obtained at the Bedretto Lab pave the way for new research and practical application scenarios. Understanding the behavior of faults and induced seismicity can lead to significant developments in the field of deep geothermal energy and tunnel construction. Moreover, the ability to predict and control micro-earthquakes can improve the safety of underground operations and reduce the risks associated with induced seismicity. ### Comparison with the Previous Situation Before these experiments, the understanding of fault behavior and induced seismicity was limited. Studies primarily focused on surface phenomena, while at the Bedretto Lab, work was actively carried out at depth. This innovative approach allowed for more precise data to be obtained and more accurate models to be developed for predicting and controlling induced earthquakes. ## Recommended tools For an updated estimate, use the net salary calculator and the CHF-EUR exchange comparator.
Punti chiave
Concrete actions for cross-border workers Cross-border workers in the construction or geothermal sector in Ticino can benefit from the results of experiments conducted at the Bedretto Lab. Understanding induced seismicity and tectonic faults can improve the safety and efficiency of underground operations. Additionally, the ability to predict and control micro-earthquakes can reduce risks for workers and local communities. ### Step-by-step procedure 1. Fault identification: Select tectonic faults at a depth of about one and a half or two kilometers below the mountains. 2. Sensor installation: Place sensors to monitor fault movement. 3. Water injection: Inject high-pressure water into the selected faults to induce micro-earthquakes. 4. Monitoring and analysis: Record and analyze the data obtained to understand fault behavior. 5. Practical application: Use the results obtained to improve the safety and efficiency of underground operations. ### Useful tools To delve deeper into the practical implications of the experiments conducted at the Bedretto Lab, cross-border workers can use tools such as the seismic risk calculator and the insurance comparator. These tools can help assess the risks associated with induced seismicity and find the most suitable solutions for their situation. ### Final CTA For more information and to use useful tools, visit the seismic risk calculator and the insurance comparator. Source: rsi.ch
Punti chiave
[{"q":"What is the main objective of the experiments conducted at the Bedretto Lab?","a":"The main objective of the experiments conducted at the Bedretto Lab is to understand how tectonic faults move and how micro-earthquakes can be induced. This knowledge is crucial for improving the safety and efficiency of underground operations, such as tunnel construction and deep geothermal energy."},{"q":"What are the practical implications of the experiments for cross-border workers?","a":"The practical implications of the experiments for cross-border workers in the construction or geothermal sector in Ticino are significant. Understanding induced seismicity and tectonic faults can improve the safety and efficiency of underground operations, reducing risks for workers and local communities."},{"q":"How can cross-border workers use the results of the experiments for their own safety?","a":"Cross-border workers can use the results of the experiments to assess the risks associated with induced seismicity and find the most suitable solutions for their situation. Tools like the seismic risk calculator and insurance comparator can be useful for this purpose."}]
Frequently Asked Questions
- What is the main objective of the experiments conducted at the Bedretto Lab?
- The main objective of the experiments conducted at the Bedretto Lab is to understand how tectonic faults move and how micro-earthquakes can be induced. This knowledge is crucial for improving the safety and efficiency of underground operations, such as tunnel construction and deep geothermal energy.
- What are the practical implications of the experiments for cross-border workers?
- The practical implications of the experiments for cross-border workers in the construction or geothermal sector in Ticino are significant. Understanding induced seismicity and tectonic faults can improve the safety and efficiency of underground operations, reducing risks for workers and local communities.
- How can cross-border workers use the results of the experiments for their own safety?
- Cross-border workers can use the results of the experiments to assess the risks associated with induced seismicity and find the most suitable solutions for their situation. Tools like the seismic risk calculator and insurance comparator can be useful for this purpose.