Fig. 7

Overview of the measuring configuration for the measurements in 2014 (red) and 2015 (green). The red dashed line shows the orientation of the main joint set (red lines in Fig. 1d). The brown line indicates a fault line (swisstopo), the green circle shows a potential, relevant location for permanent monitoring, the orange dashed line represents the assumed border of the deep seated instability (3.5 Hz peak) and the blue dashed line represents the border of the instability A2 (10 Hz peak). As the coordinates of the sensors were only measured by GPS with an accuracy of around 5 m, the sensor locations can contain errors