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