The data gathered by the network will help to identify unknown active fault zones with very slow tectonic movements and also to potentially link them to known geological structures. In the medium term the data will deepen our understanding of seismotectonics (i.e. the study of why and where earthquakes occur) in the region under investigation. The additional data should enable the authorities to carry out more detailed studies in future (e.g. of relevance to judgements about long-term deep geological disposal of radioactive waste or the seismic hazards faced by nuclear power plants and other infrastructure where safety is a key factor).
Six additional measurement stations have been set up in Switzerland, three in boreholes between 120 and 160 metres deep. Installing highly sensitive sensors in boreholes enables us to record high-quality data in areas where measurements would otherwise suffer strong interference from seismic tremors caused by transport or industrial activity on the surface. Four of the 10 new stations are in Germany, because the territory under investigation includes areas close to the border between the two countries and known geological fault zones in the vicinity of Lake Constance. As has now been the case with stations close to the Swiss border for some time, the recorded data will be exchanged in real time, in this case with the federal state of Baden-Württemberg's Earthquake Office (LED).
The data are transferred in real time over telephone lines or the mobile network to the SED's computer centre in Zurich, where they are collated, continually monitored for indications of potential earthquakes and filed. All registered localised earthquakes are immediately published on the SED website, as are waveforms recorded by the new seismic measuring stations. If a stronger earthquake occurs, the Earthquake Office notifies the general public, the authorities and the media.